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Data Set ID:

NSIDC-0481

MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, Version 1

This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, provides velocity estimates determined from Interferometric Synthetic Aperture Radar (InSAR) data for major glacier outlet areas in Greenland, some of which have shown profound velocity changes over the MEaSUREs observation period. The InSAR Selected Glacier Site Velocity Maps are produced from image pairs measured by the German Aerospace Center's (DLR) twin satellites TerraSAR-X / TanDEM-X (TSX / TDX). The measurements in this data set are provided in addition to the ice sheet-wide data from the related data set, MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data.

See Greenland Ice Mapping Project (GIMP) for more related data.

This is the most recent version of these data.

Version Summary:

Initial release

Parameter(s):	SNOW/ICE > ICE VELOCITY	Data Format(s):	GeoTIFF JPEG
Spatial Coverage:	N: 82, S: 60, E: -20, W: -70	Platform(s):	TSX
Spatial Resolution:	100 m x 100 m	Sensor(s):	SAR
Temporal Coverage:	1 January 2009 (updated 2019)	Version(s):	V1
Temporal Resolution	11 day	Metadata XML:	View Metadata Record
Data Contributor(s):	Ian Joughin, Ian Howat, Ted Scambos, Ben Smith

Geographic Coverage

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As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Joughin, I., I. Howat, B. Smith, and T. Scambos. 2011, updated 2019. MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, Version 1. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0481.001. [Date Accessed].

Literature Citation

As a condition of using these data, we request that you acknowledge the author(s) of this data set by referencing the following peer-reviewed publication.

Joughin, I., B. Smith, I. Howat, T. Scambos, and T. Moon. 2010. Greenland Flow Variability from Ice-Sheet-Wide Velocity Mapping, Journal of Glaciology. 56. 415-430. https://doi.org/10.3189/002214310792447734

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Detailed Data Description

The investigators had some earlier problems processing data from the Jakobshavn Isbrae, Helheim, and Kangerdlugssuaq Glaciers, in part because the terminus was in a retreated position when the underlying DEM was created. Because of the slope discontinuity at the terminus, some artifacts exceeding the stated three percent error were observed. In 2015, WorldView imagery was used to extend the terminus forward and the data were reprocessed and re-released in January 2016. New data were also added at this time for the years 2009 – 2012.

Format

For each individual grid cell and time period, the velocity components (vx, vy) and corresponding error estimates (ex, ey) are provided in Geographic Tagged Image File Format (GeoTIFF). A JPEG image showing the magnitude of the velocity for the period is provided for easy visualization. An ASCII formatted metadata file containing source satellite acquistion information is also included.

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File Naming Convention

This section explains the file naming convention used for this product with an example.

Example File Name:
- TSX_E61.10N_19Apr14_30Apr14_09-16-09_vx_v1.2.tif
- TSX_E61.10N_19Apr14_30Apr14_09-16-09_vy_v1.2.tif
- TSX_E61.10N_19Apr14_30Apr14_09-16-09_ex_v1.2.tif
- TSX_E61.10N_19Apr14_30Apr14_09-16-09_ey_v1.2.tif
- TSX_E61.10N_19Apr14_30Apr14_09-16-09_v1.2.jpg
- TSX_E61.10N_19Apr14_30Apr14_09-16-09_v1.2.meta
Naming Convention:
- TSX_[grid]_[startdate]_[enddate]_[hh-mm-ss]_[datum]_v1.2.[ext]

Refer to the following table for descriptions of the values in the file naming convention.

**Table 2.** File Naming Convention
Variable	Description
TSX	Data Source TSX: denotes the twin satellites TerraSAR-X / TanDEM-X (TSX / TDX)
grid	Grid is defined by the following: E, W, or S: East, West, or South Coast Latitude in degrees, minutes
startdate	Acquisition start date (DDMMMYY)
enddate	Acquisition end date (DDMMMYY)
hh-mm-ss	Nominal time for pair
datum	Component velocity or error estimate vx: x component of velocity vy: y component of velocity ex: x component of error ey: y component of error
v1.2	Version 1.2 of the data set
.ext	File extensions: .tif = GeoTIFF formatted file .jpg = JPEG file; visualization of the magnitude of the velocity .meta = ASCII text file; contains the Central Julian date and nominal time (HH:MM:SS) for the pair, the date for each image, production date, sensor combinations, and geographical information

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File Size

The file sizes range from 319 bytes to 5.7 MB. The total volume of the data set is approximately 6.4 GB.

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Spatial Coverage and Resolution

This data set contains velocity data for most of the outlet glaciers for the Greenland Ice Sheet. It is organized into 55 study sites (grids). The spatial coverage map in Figure 1 shows the locations of all grids on a map of Greenland. A high resolution image of this map can be downloaded as a Portable Network Graphics (.png) file.

**Figure 1.** This map shows the locations of grids on a map of Greenland. Grids that were expanded in 2012 are shown in blue.

Table 3 lists the following information for each grid:

Name (center latitude) plus the latitude and longitude of the lower left corner
- Example: E61.10N
  - 60.8004, -43.9589
Glaciers included in the grid
Dates of available data

Note: Each grid lists all the glaciers that potentially lie within that grid's spatial extent. However, it is possible that data don't yet exist for all of the listed glaciers.

2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2009
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	02-05-09 to 02-16-09 04-23-09 to 05-04-09 07-09-09 to 07-20-09 09-02-09 to 09-13-09 11-07-09 to 11-18-09
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	02-06-09 to 02-17-09 04-24-09 to 05-05-09 07-10-09 to 07-21-09 08-23-09 to 09-03-09 11-08-09 to 11-19-09
E63.00N 62.7212, -43.5332	Heimdal	02-06-09 to 02-17-09 04-24-09 to 05-05-09 07-10-09 to 07-21-09 08-23-09 to 09-03-09 11-08-09 to 11-19-09
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	02-01-09 to 02-12-09 04-30-09 to 05-11-09 07-05-09 to 07-16-09 08-29-09 to 09-09-09 11-03-09 to 11-14-09
E63.85N 63.5620, -42.4419	Bernstorf	02-06-09 to 02-17-09 04-24-09 to 05-05-09 07-10-09 to 07-21-09 08-23-09 to 09-03-09 11-08-09 to 11-19-09
E64.35N 64.0768, -42.2688	Gyldenslove	01-31-09 to 02-11-09 04-29-09 to 05-10-09 07-04-09 to 07-15-09 08-28-09 to 09-08-09 11-02-09 to 11-13-09
E65.10N 64.7987, -41.8569	Koge Bugt	01-26-09 to 02-06-09 04-24-09 to 05-05-09 07-10-09 to 07-21-09 08-23-09 to 09-03-09 11-08-09 to 11-19-09
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	02-01-09 to 02-12-09 04-30-09 to 05-11-09 07-05-09 to 07-16-09 08-29-09 to 09-09-09 11-03-09 to 11-14-09
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	01-27-09 to 02-07-09 04-25-09 to 05-06-09 06-19-09 to 06-30-09 06-30-09 to 07-11-09 07-11-09 to 07-22-09 07-22-09 to 08-02-09 08-02-09 to 08-13-09 08-13-09 to 08-24-09 08-24-09 to 09-04-09 10-07-09 to 10-18-09 11-20-09 to 12-01-09
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	01-28-09 to 02-08-09 04-26-09 to 05-07-09 07-01-09 to 07-12-09 08-25-09 to 09-05-09 11-10-09 to 11-21-09
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	01-28-09 to 02-08-09 04-26-09 to 05-07-09 06-09-09 to 06-20-09 07-23-09 to 08-03-09 08-03-09 to 08-14-09 08-14-09 to 08-25-09 08-25-09 to 09-05-09 09-05-09 to 09-16-09 09-16-09 to 09-27-09 09-27-09 to 10-08-09 11-21-09 to 12-02-09
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	02-04-09 to 02-15-09 04-22-09 to 05-03-09 08-21-09 to 09-01-09 09-01-09 to 09-12-09 11-06-09 to 11-17-09
W67.05N 66.7183, -50.3192	Russell	03-20-09 to 03-31-09 03-20-09 to 03-31-09 07-30-09 to 08-10-09 07-30-09 to 08-10-09 08-21-09 to 09-01-09 08-21-09 to 09-01-09 11-06-09 to 11-17-09 11-06-09 to 11-17-09
W68.60N³ 68.3079, -50.6854	Saraqardliup glacier Alangordlek glacier Nordenskiold glacier	04-23-09 to 05-04-09 06-06-09 to 06-17-09 06-17-09 to 06-28-09 06-28-09 to 07-09-09 07-09-09 to 07-20-09 07-20-09 to 07-31-09 07-31-09 to 08-11-09 08-11-09 to 08-22-09 08-22-09 to 09-02-09 09-02-09 to 09-13-09
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	01-29-09 to 02-09-09 01-30-09 to 02-10-09 02-09-09 to 02-20-09 02-20-09 to 03-03-09 03-03-09 to 03-14-09 03-14-09 to 03-25-09 03-25-09 to 04-05-09 04-05-09 to 04-16-09 04-16-09 to 04-27-09 04-27-09 to 05-08-09 04-28-09 to 05-09-09 05-08-09 to 05-19-09 05-19-09 to 05-30-09 05-30-09 to 06-10-09 06-10-09 to 06-21-09 06-21-09 to 07-02-09 07-02-09 to 07-13-09 07-03-09 to 07-14-09 07-13-09 to 07-24-09 07-24-09 to 08-04-09 08-04-09 to 08-15-09 08-15-09 to 08-26-09 08-26-09 to 09-06-09 09-17-09 to 09-28-09 09-18-09 to 09-29-09 09-28-09 to 10-09-09 10-09-09 to 10-20-09 10-20-09 to 10-31-09 10-31-09 to 11-11-09 11-11-09 to 11-22-09 11-22-09 to 12-03-09 12-03-09 to 12-14-09 12-14-09 to 12-25-09 12-25-09 to 01-05-10
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	03-09-09 to 03-20-09 06-05-09 to 06-16-09 06-16-09 to 06-27-09 06-27-09 to 07-08-09 08-21-09 to 09-01-09 11-17-09 to 11-28-09
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	02-05-09 to 02-16-09 04-23-09 to 05-04-09 07-09-09 to 07-20-09 09-02-09 to 09-13-09 11-07-09 to 11-18-09
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	02-05-09 to 02-16-09 04-23-09 to 05-04-09 07-09-09 to 07-20-09 09-13-09 to 09-24-09
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	01-30-09 to 02-10-09 04-28-09 to 05-09-09 07-03-09 to 07-14-09
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	02-06-09 to 02-17-09 04-24-09 to 05-05-09 07-10-09 to 07-21-09 09-14-09 to 09-25-09
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	02-05-09 to 02-16-09 04-23-09 to 05-04-09 7-09-09 to 07-20-09 09-13-09 to 09-24-09

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2010
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	04-21-10 to 05-02-10 07-07-10 to 07-18-10 08-31-10 to 09-11-10 11-16-10 to 11-27-10
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	02-04-10 to 02-15-10 05-08-10 to 05-14-10 07-08-10 to 07-19-10 09-01-10 to 09-12-10 11-17-10 to 11-28-10
E63.00N 62.7212, -43.5332	Heimdal	02-04-10 to 02-15-10 04-22-10 to 05-03-10 07-08-10 to 07-19-10 09-01-10 to 09-12-10 11-17-10 to 11-28-10
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	01-30-10 to 02-10-10 04-28-10 to 05-09-10 07-03-10 to 07-14-10 09-07-10 to 09-18-10 11-12-10 to 11-23-10
E63.85N 63.5620, -42.4419	Bernstorf	02-04-10 to 02-15-10 04-22-10 to 05-03-10 07-08-10 to 07-19-10 09-01-10 to 09-12-10 11-17-10 to 11-28-10
E64.35N 64.0768, -42.2688	Gyldenslove	01-29-10 to 02-09-10 04-27-10 to 05-08-10 07-02-10 to 07-13-10 08-26-10 to 09-06-10 11-22-10 to 12-14-10
E65.10N 64.7987, -41.8569	Koge Bugt	02-04-10 to 02-15-10 04-22-10 to 05-03-10 07-08-10 to 07-19-10 09-01-10 to 09-12-10 11-17-10 to 11-28-10
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	01-30-10 to 02-10-10 04-28-10 to 05-09-10 07-03-10 to 07-14-10 08-27-10 to 09-07-10 11-12-10 to 11-23-10
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	04-23-10 to 05-04-10 06-17-10 to 06-28-10 06-28-10 to 07-09-10 07-09-10 to 07-20-10 07-20-10 to 07-31-10 07-31-10 to 08-11-10 08-11-10 to 08-22-10 08-22-10 to 09-02-10 09-02-10 to 09-13-10 10-27-10 to 11-07-10 11-07-10 to 11-18-10 11-18-10 to 11-29-10
E66.60N¹ 66.3305, -37.4428	Midgard Midgard Nord	11-18-10 to 11-29-10 11-29-10 to 12-10-10
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	02-06-10 to 02-17-10 04-24-10 to 05-05-10 07-10-10 to 07-21-10 08-23-10 to 09-03-10 11-19-10 to 11-30-10
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	04-24-10 to 05-05-10 06-07-10 to 06-18-10 07-21-10 to 08-01-10 08-23-10 to 09-03-10 09-03-10 to 09-14-10 11-19-10 to 11-30-10 11-30-20 to 12-11-10
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	02-02-10 to 02-13-10 04-20-10 to 05-01-10 08-30-10 to 09-10-10 11-15-10 to 11-26-10
W67.05N 66.7183, -50.3192	Russell	02-02-10 to 02-13-10 04-20-10 to 05-01-10 05-01-10 to 05-12-10 06-14-10 to 06-25-10 06-25-10 to 07-06-10 07-06-10 to 07-17-10 07-17-10 to 07-28-10 08-19-10 to 08-30-10 08-30-10 to 09-10-10 10-24-10 to 11-04-10 10-24-10 to 11-15-10 11-04-10 to 11-15-10 11-15-10 to 11-26-10
W68.60N³ 68.3079, -50.6854	Saraqardliup glacier Alangordlek glacier Nordenskiold glacier	05-13-10 to 05-24-10 05-24-10 to 06-04-10 06-04-10 to 06-15-10 06-15-10 to 06-26-10 06-26-10 to 07-07-10 07-07-10 to 07-18-10 07-18-10 to 08-09-10 08-09-10 to 08-31-10 08-31-10 to 09-11-10 11-16-10 to 11-27-10
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	01-05-10 to 01-16-10 02-07-10 to 02-18-10 02-18-10 to 03-01-10 03-01-10 to 03-12-10 03-12-10 to 03-23-10 03-23-10 to 04-03-10 04-03-10 to 04-14-10 04-14-10 to 04-25-10 04-25-10 to 05-06-10 04-26-10 to 05-07-10 05-06-10 to 05-17-10 05-17-10 to 05-28-10 05-28-10 to 06-08-10 06-08-10 to 06-19-10 06-19-10 to 06-30-10 06-30-10 to 07-11-10 07-11-10 to 07-22-10 08-25-10 to 09-05-10 09-04-10 to 09-15-10 09-15-10 to 10-07-10 10-07-10 to 10-18-10 10-18-10 to 10-29-10 10-29-10 to 11-09-10 11-09-10 to 11-20-10 11-20-10 to 12-01-10 11-21-10 to 12-02-10 12-01-10 to 12-12-10 12-12-10 to 12-23-10 12-23-10 to 01-03-11
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	02-02-10 to 02-13-10 05-01-10 to 05-12-10 10-24-10 to 11-15-10 11-15-10 to 11-26-10
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	04-21-10 to 05-02-10 07-07-10 to 07-18-10 08-31-10 to 09-11-10 11-16-10 to 11-27-10
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	04-21-10 to 05-02-10 07-07-10 to 07-18-10 08-31-10 to 09-11-10 11-16-10 to 11-27-10
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	4-26-10 to 05-07-10 07-01-10 to 07-12-10 08-25-10 to 09-05-10 11-21-10 to 12-02-10
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	02-04-10 to 02-15-10 04-22-10 to 05-03-10 07-08-10 to 07-19-10 09-01-0 to 09-12-10 11-17-10 to 11-28-10
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	04-21-10 to 05-02-10 07-07-10 to 07-18-10 11-16-10 to 11-27-10
W80.75N 79.9328, -61.5545	Petermann	11-09-10 to 11-20-10 11-20-10 to 12-01-10
S46.31N 60.9223, -46.7905	Eqalorutsit Kangigdlit Sermia West	12-14-10 to 01-05-11
S46.91N 60.8876, -47.3303	Qaleragdlit Naujat Sermilik	12-07-10 to 12-18-10

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2011
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	04-30-11 to 05-11-11 07-05-11 to 07-27-11 08-29-11 to 09-20-11 11-14-11 to 11-25-11
E62.10N 61.801, -43.2149	Puisortuq North Puisortuq South	03-12-11 to 03-23-11
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	02-13-11 to 02-24-11 04-20-11 to 05-01-11 07-06-11 to 07-17-11 08-30-11 to 09-21-11 11-26-11 to 12-07-11
E63.00N 62.7212, -43.5332	Heimdal	02-02-11 to 02-13-11 04-20-11 to 05-01-11 07-06-11 to 07-17-11 08-30-11 to 09-21-11 11-15-11 to 11-26-11
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	02-08-11 to 02-19-11 04-26-11 to 05-07-11 07-12-11 to 08-03-11 08-03-11 to 08-25-11 11-21-11 to 12-02-11
E63.85N 63.5620, -42.4419	Bernstorf	02-02-11 to 02-13-11 04-20-11 to 05-01-11 07-06-11 to 07-17-11 08-30-11 to 09-21-11 11-15-11 to 11-26-11
E64.35N 64.0768, -42.2688	Gyldenslove	04-25-11 to 05-06-11 07-11-11 to 07-22-11 07-22-11 to 08-24-11 08-24-11 to 09-15-11 11-20-11 to 12-01-11
E64.65N 64.3291, -41.7539	Fridtjof	03-08-11 to 03-19-11
E65.10N 64.7987, -41.8569	Koge Bugt	02-13-11 to 02-24-11 04-20-11 to 05-01-11 07-06-11 to 07-17-11 08-30-11 to 09-10-11 11-15-11 to 11-26-11
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	02-08-11 to 02-19-11 07-12-11 to 08-03-11 08-03-11 to 08-25-11 08-25-11 to 09-05-11 12-02-11 to 12-24-11
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	03-08-11 to 03-19-11 04-21-11 to 05-02-11 06-04-11 to 06-15-11 06-15-11 to 06-26-11 06-26-11 to 07-07-11 07-07-11 to 07-18-11 07-18-11 to 07-29-11 07-29-11 to 08-09-11 08-09-11 to 08-20-11 08-20-11 to 08-31-11 08-31-11 to 09-11-11 09-11-11 to 09-22-11 11-16-11 to 11-27-11
E66.60N¹ 66.3305, -37.4428	Midgard Midgard Nord	05-02-11 to 05-13-11 07-29-11 to 08-09-11 08-09-11 to 08-31-11 08-31-11 to 09-11-11 11-16-11 to 11-27-11
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	02-15-11 to 03-09-11 04-22-11 to 05-03-11 07-08-11 to 07-19-11 08-21-11 to 09-12-11 11-17-11 to 11-28-11
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	03-09-11 to 03-20-11 04-22-11 to 05-03-11 06-05-11 to 06-16-11 06-16-11 to 06-27-11 06-27-11 to 07-08-11 07-08-11 to 07-30-11 07-30-11 to 08-10-11 08-10-11 to 08-21-11 08-21-11 to 09-01-11 09-01-11 to 09-12-11 09-12-11 to 09-23-11 09-23-11 to 10-04-11 10-04-11 to 10-26-11 11-06-11 to 11-17-11 11-17-11 to 11-28-11
E71.75N 71.4887, -30.9758	Daugaard-Jensen	03-12-11 to 03-23-11 03-27-11 to 04-07-11 03-28-11 to 04-08-11
E78.90N 78.7017, -24.0968	Zach	02-25-11 to 03-08-11 03-30-11 to 04-10-11
E79.40N 79.190, -24.0779	Fjorden	03-03-11 to 03-14-11
E81.35N 81.1300, -30.0074	Hagan	03-27-11 to 04-07-11
E81.45N 81.196, -34.6273	Acad	03-08-11 to 03-19-11
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	04-29-11 to 05-10-11 07-15-11 to 07-26-11 07-26-11 to 08-28-11 08-28-11 to 09-08-11 11-13-11 to 11-24-11
W67.05N 66.7183, -50.3192	Russell	03-16-11 to 05-10-11 07-15-11 to 08-06-11 07-26-11 to 08-17-11 08-17-11 to 08-28-11 11-13-11 to 11-24-11
W68.60N³ 68.3079, -50.6854	Saraqardliup glacier Alangordlek glacier Nordenskiold glacier	02-01-11 to 02-12-11
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	01-03-11 to 01-25-11 01-25-11 to 02-16-11 02-06-11 to 02-28-11 02-16-11 to 03-10-11 03-10-11 to 03-21-11 03-21-11 to 04-01-11 04-01-11 to 04-12-11 04-12-11 to 04-23-11 04-23-11 to 05-15-11 04-24-11 to 05-05-11 05-15-11 to 05-26-11 05-26-11 to 06-17-11 06-08-11 to 06-19-11 06-19-11 to 06-30-11 06-30-11 to 07-11-11 07-11-11 to 07-22-11 07-21-11 to 08-01-11 07-22-11 to 08-02-11 08-02-11 to 08-13-11 08-13-11 to 08-24-11 08-20-11 to 08-31-11 08-23-11 to 09-03-11 08-23-11 to 09-14-11 08-24-11 to 09-04-11 09-03-11 to 09-14-11 09-04-11 to 09-15-11 09-14-11 to 09-25-11 09-25-11 to 10-06-11 10-05-11 to 10-16-11 10-06-11 to 10-17-11 10-17-11 to 10-28-11 10-28-11 to 11-08-11 11-08-11 to 11-19-11 11-18-11 to 11-29-11 11-19-11 to 11-30-11 11-19-11 to 11-30-11 11-29-11 to 12-10-11 12-10-11 to 12-21-11 12-12-11 to 12-23-11 12-23-10 to 01-03-12
W69.95N 69.6356, -50.6122	Kangilerngata Kujatdleq Torsukatat	03-27-11 to 04-07-11
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	04-29-11 to 05-10-11 07-15-11 to 07-26-11 11-13-11 to 11-24-11
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	02-01-11 to 02-12-11 04-30-11 to 05-11-11 07-05-11 to 07-16-11 08-29-11 to 09-20-11 11-14-11 to 11-25-11
W73.45N 73.1520, -55.6912	Kakivfat Giesecke Nutarmiut Tuvssaq	03-11-11 to 03-22-11
W73.75N 73.1520, -55.6912	Comell Sugarloaf Ussing	03-05-11 to 03-16-11
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	02-01-11 to 02-12-11 04-30-11 to 05-22-11 07-05-11 to 07-16-11 08-29-11 to 09-20-11 11-14-11 to 11-25-11
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	02-17-11 to 02-28-11 04-24-11 to 05-05-11 07-10-11 to 08-01-11 11-19-11 to 11-30-11
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	02-13-11 to 02-24-11 04-20-11 to 05-01-11 07-06-11 to 07-17-11 11-15-11 to 11-26-11
W75.85N 75.4736, -59.2722	South of Nansen Nansen Nordenskiold	03-01-11 to 03-23-11
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	02-01-11 to 02-12-11 05-11-11 to 05-22-11 07-05-11 to 07-16-11 08-29-11 to 09-09-11 11-14-11 to 11-25-11
W76.25N 75.9067, -61.2365	Balgoni Docker Fisher Igssuarssuit Leven	02-28-11 to 03-11-11
W76.35N 75.7416, -63.3988	Mohn Gade Meteor Yngvar Nielson	02-27-11 to 03-10-11 03-04-11 to 03-15-11
W76.40N 76.0579, -65.9643	Savigssuaq Helland Sidebriks	02-26-11 to 03-09-11
W76.45N 76.1084, -67.6907	Dedodes Harald Moltke	02-25-11 to 03-08-11
W77.55N 77.0728, -66.2296	Leidy Mane Heilprin Mellville Tracy	03-05-11 to 03-27-11
W79.75N 79.3702, -65.1597	Humboldt	03-15-11 to 03-26-11
W81.25N 80.9256, -51.3505	Ryder	03-14-11 to 03-25-11
S44.84W 61.0923, -45.3465	Kiagtut Qorqup	03-01-11 to 03-23-11
S45.43W 61.2196, -45.8994	Eqalorutsit Kangigdlit Sermia	02-24-11 to 03-29-11 03-29-11 to 04-20-11
S46.91W 60.8876, -47.3303	Qaleragdlit Naujat Sermilik	12-07-10 to 12-18-10

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2012
E61.10N 60.8004, -43.9589	Unnamed near Danells Danells Kanderdluluk Kap to Herlut to Trolle Kap to Njordenskjold	02-28-12 to 03-10-12
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	07-24-12 to 08-15-12 08-15-12 to 08-26-12 11-11-12 to 11-22-12
E62.10N 61.801, -43.2149	Puisortuq North Puisortuq South	03-09-12 to 03-20-12 07-30-12 to 08-10-12
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	02-11-12 to 02-22-12 07-03-12 to 07-14-12 08-27-12 to 09-07-12 11-12-12 to 11-23-12
E63.00N 62.7212, -43.5332	Heimdal	01-31-12 to 02-11-12 05-09-12 to 05-31-12 05-31-12 to 07-03-12 07-03-12 to 07-14-12 07-14-12 to 08-16-12 08-16-12 to 08-27-12 11-12-12 to 11-23-12
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	02-17-12 to 02-28-12 06-06-12 to 06-17-12 06-17-12 to 07-09-12 07-09-12 to 07-20-12 08-22-12 to 09-13-12 11-18-12 to 11-29-12
E63.85N 63.5620, -42.4419	Bernstorf	01-31-12 to 02-11-12 05-09-12 to 05-31-12 05-31-12 to 07-03-12 08-16-12 to 08-27-12 11-12-12 to 11-23-12
E64.35N 64.0768, -42.2688	Gyldenslove	05-03-12 to 05-14-12 07-08-12 to 07-19-12 07-19-12 to 08-21-12 08-21-12 to 09-01-12 11-17-12 to 11-28-12
E64.65N 64.3291, -41.7539	Fridtjof	03-05-12 to 03-16-12 07-26-12 to 08-06-12
E65.10N 64.7987, -41.8569	Koge Bugt	01-31-12 to 02-11-12 05-31-12 to 06-22-12 06-22-12 to 07-25-12 07-25-12 to 08-16-12 11-12-12 to 12-04-12
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	02-06-12 to 02-17-12 04-23-12 to 05-15-12 07-09-12 to 07-20-12 07-20-12 to 08-22-12 08-22-12 to 09-13-12 11-18-12 to 11-29-12
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	01-10-12 to 01-21-12 01-21-12 to 02-01-12 02-01-12 to 02-12-12 02-12-12 to 02-23-12 02-23-12 to 03-05-12 03-05-12 to 03-16-12 03-16-12 to 04-07-12 04-02-12 to 04-13-12 04-07-12 to 04-29-12 04-28-12 to 05-09-12 04-29-12 to 06-01-12 05-09-12 to 05-20-12 05-20-12 to 05-31-12 06-18-12 to 06-29-12 06-22-12 to 07-03-12 07-03-12 to 07-14-12 07-15-12 to 07-26-12 07-21-12 to 08-01-12 07-26-12 to 08-06-12 08-01-12 to 08-12-12 08-06-12 to 08-17-12 08-17-12 to 08-28-12 08-28-12 to 09-08-12 09-08-12 to 10-11-12 10-11-12 to 10-22-12 10-22-12 to 11-02-12 11-02-12 to 11-24-12 11-24-12 to 12-05-12 12-05-12 to 12-16-12 12-16-12 to 12-27-12 12-27-12 to 01-07-13
E66.60N¹ 66.3305, -37.4428	Midgard Midgard Nord	02-01-12 to 02-12-12 07-04-12 to 07-15-12 09-08-12 to 09-30-12 11-13-12 to 11-24-12
E66.90N 66.5045, -36.2923	kruuse steenstrup to east tasiliaq	03-06-12 to 03-17-12
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	02-02-12 to 02-13-12 04-30-12 to 05-11-12 07-05-12 to 07-27-12 07-27-12 to 08-29-12 08-29-12 to 09-09-12 11-14-12 to 11-25-12
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	02-02-12 to 02-13-12 02-13-12 to 02-24-12 02-24-12 to 03-06-12 03-06-12 to 03-28-12 03-17-12 to 03-28-12 03-28-12 to 04-08-12 05-05-12 to 05-16-12 06-24-12 to 07-05-12 07-05-12 to 07-16-12 07-10-12 to 07-21-12 07-16-12 to 07-27-12 07-27-12 to 08-18-12 08-18-12 to 08-29-12 08-29-12 to 09-09-12 09-09-12 to 10-12-12 10-12-12 to 10-23-12 10-23-12 to 11-03-12 11-03-12 to 11-14-12 11-14-12 to 11-25-12 11-25-12 to 12-06-12 12-06-12 to 12-17-12 12-17-12 to 12-28-12 12-28-12 to 01-08-13
E71.75N 71.4887, -30.9758	Daugaard-Jensen	02-27-12 to 03-09-12 03-02-12 to 03-13-12 03-03-12 to 03-14-12
E78.90N 78.7017, -24.0968	Zach	03-05-12 to 03-16-12 03-27-12 to 04-07-12
E79.40N 79.190, -24.0779	Fjorden	02-29-12 to 03-11-12
E81.35N 81.1300, -30.0074	Hagan	03-02-12 to 03-13-12
E81.45N 81.196, -34.6273	Acad	03-05-12 to 03-16-12
W61.70N 61.4746, -48.4912	Sermiligarssuk	03-08-12 to 03-19-12
W62.10N 61.8077, -49.0172	Nigerdlikasik Avangnardleq Ukassorssuaq	03-02-12 to 03-13-12
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	02-09-12 to 02-20-12 05-07-12 to 05-18-12 07-01-12 to 07-23-12 09-05-12 to 09-16-12 11-10-12 to 11-21-12
W68.60N³ 68.3079, -50.6854	Saraqardliup glacier Alangordlek glacier Nordenskiold glacier	01-17-12 to 01-28-12 01-18-12 to 01-29-12 04-25-12 to 05-06-12 05-06-12 to 05-17-12 05-17-12 to 05-28-12 05-28-12 to 06-08-12 06-08-12 to 06-19-12 06-19-12 to 07-11-12 07-11-12 to 07-22-12 07-22-12 to 08-02-12 08-02-12 to 08-13-12 08-13-12 to 08-24-12 08-24-12 to 09-04-12 09-04-12 to 09-15-12
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	01-03-12 to 01-25-12 01-08-12 to 01-19-12 01-13-12 to 01-24-12 01-19-12 to 01-30-12 01-23-12 to 02-03-12 01-30-12 to 02-10-12 02-03-12 to 02-14-12 02-04-12 to 02-15-12 02-10-12 to 02-21-12 02-14-12 to 02-25-12 02-15-12 to 02-26-12 02-21-12 to 03-14-12 02-25-12 to 03-07-12 02-27-12 to 03-09-12 03-07-12 to 03-18-12 03-09-12 to 03-20-12 03-14-12 to 03-25-12 03-25-12 to 04-05-12 04-21-12 to 05-02-12 05-12-12 to 05-23-12 05-24-12 to 06-04-12 06-03-12 to 06-14-12 06-04-12 to 06-15-12 06-05-12 to 06-16-12 06-10-12 to 06-21-12 06-14-12 to 06-25-12 06-21-12 to 07-02-12 07-02-12 to 07-13-12 07-06-12 to 07-17-12 07-07-12 to 07-18-12 07-08-12 to 07-19-12 07-19-12 to 07-30-12 07-30-12 to 08-10-12 08-09-12 to 08-20-12 08-10-12 to 08-21-12 08-20-12 to 08-31-12 08-20-12 to 08-31-12 08-21-12 to 09-01-12 08-31-12 to 09-11-12 09-11-12 to 09-22-12 09-22-12 to 10-03-12 10-03-12 to 10-14-12 10-04-12 to 10-15-12 10-14-12 to 10-25-12 10-15-12 to 10-26-12 11-04-12 to 11-15-12 11-15-12 to 11-26-12 11-16-12 to 11-27-12 11-16-12 to 11-27-12 11-17-12 to 11-28-12 11-26-12 to 12-07-12 11-27-12 to 12-08-12 11-28-12 to 12-09-12 12-08-12 to 12-19-12 12-09-12 to 12-20-12 12-20-12 to 12-31-12 12-29-12 to 01-09-13 12-31-12 to 01-11-13
W69.95N 69.6356, -50.6122	Kangilerngata Kujatdleq Torsukatat	03-02-12 to 03-13-12
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	02-09-12 to 02-20-12 05-07-12 to 05-18-12 09-05-12 to 09-16-12 11-10-12 to 11-21-12
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	01-30-12 to 02-10-12 04-27-12 to 05-08-12 07-02-12 to 07-24-12 07-24-12 to 08-26-12 08-26-12 to 09-06-12 11-22-12 to 12-03-12
W73.45N 73.1520, -55.6912	Kakivfat Giesecke Nutarmiut Tuvssaq	02-26-12 to 03-08-12 07-07-12 to 07-18-12 08-31-12 to 09-11-12 11-16-12 to 11-27-12
W73.75N 73.1520, -55.6912	Comell Sugarloaf Ussing	03-02-12 to 03-13-12 07-01-12 to 07-23-12 09-16-12 to 09-27-12 12-13-12 to 12-24-12
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	01-30-12 to 02-10-12 04-27-12 to 05-08-12 07-02-12 to 07-24-12 07-24-12 to 08-26-12 08-26-12 to 09-06-12 11-22-12 to 12-03-12
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	02-04-12 to 02-15-12 04-21-12 to 05-02-12 07-07-12 to 07-18-12 07-18-12 to 08-20-12 08-20-12 to 08-31-12 11-16-12 to 11-27-12
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	01-31-12 to 02-11-12 07-03-12 to 07-14-12 08-27-12 to 09-07-12 11-12-12 to 11-23-12
W75.85N 75.4736, -59.2722	South of Nansen Nansen Nordenskiold	02-27-12 to 03-09-12 07-08-12 to 07-19-12 09-01-12 to 09-12-12 11-17-12 to 11-28-12
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	01-30-12 to 02-10-12 04-27-12 to 05-08-12 07-02-12 to 07-13-12 08-26-12 to 09-06-12 11-11-12 to 11-22-12
W76.25N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	02-26-12 to 03-08-12 07-07-12 to 07-18-12 07-18-12 to 08-20-12 08-20-12 to 08-31-12 11-16-12 to 11-27-12
W76.35N 75.7416, -63.3988	Mohn Gade Meteor Yngvar Nielson	03-01-12 to 03-12-12 03-07-12 to 03-18-12
W76.40N 76.0579, -65.9643	Savigssuaq Helland Sidebriks	03-06-12 to 03-17-12
W76.45N 76.1084, -67.6907	Dedodes Harald Moltke	03-05-12 to 03-16-12
W77.55N 77.0728, -66.2296	Leidy Mane Heilprin Mellville Tracy	03-02-12 to 03-13-12
W79.75N 79.3702, -65.1597	Humboldt	03-01-12 to 03-12-12
W80.75N 79.9328, -61.5545	Petermann	03-07-12 to 03-18-12 07-28-12 to 08-08-12
W81.5N² 81.1505, -46.6109	Chow	03-08-12 to 03-19-12
S44.84W 61.0923, -45.3465	Kiagtut Qorqup	02-27-12 to 03-09-12
S45.43W 61.2196, -45.8994	Eqalorutsit Kangigdlit Sermia	03-04-12 to 03-15-12 07-25-12 to 08-16-12
S46.31W¹ 60.9223, -46.7905	Eqalorutsit Kangigdlit Sermia West	03-31-12 to 04-11-12
S46.91W 60.8876, -47.3303	Qaleragdlit Naujat Sermilik	03-24-12 to 04-04-12

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2013
E61.10N 60.8004, -43.9589	Unnamed near Danells Danells Kanderdluluk Kap to Herlut to Trolle Kap to Njordenskjold	03-08-13 to 03-19-13
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	02-07-13 to 02-18-13 06-30-13 to 07-11-13 08-24-13 to 09-04-13 11-09-13 to 11-20-13
E62.10N 61.801, -43.2149	Puisortuq North Puisortuq South	03-07-13 to 03-18-13 12-18-13 to 12-29-13
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	02-08-13 to 02-19-13 04-26-13 to 05-07-13 07-01-13 to 07-12-13 08-25-13 to 09-05-13 12-24-13 to 01-04-14
E63.00N 62.7212, -43.5332	Heimdal	02-08-13 to 02-19-13 04-26-13 to 05-18-13 07-01-13 to 07-12-13 08-25-13 to 09-05-13 11-10-13 to 11-21-13
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	08-20-13 to 08-31-13 05-02-13 to 05-13-13
E63.85N 63.5620, -42.4419	Bernstorf	02-08-13 to 02-19-13 04-26-13 to 05-18-13 07-01-13 to 07-12-13 08-25-13 to 09-05-13 11-10-13 to 11-21-13
E64.35N 64.0768, -42.2688	Gyldenslove	02-02-13 to 02-13-13 07-06-13 to 07-17-13 08-19-13 to 08-30-13 11-15-13 to 11-26-13
E64.65N 64.3291, -41.7539	Fridtjof	03-03-13 to 03-14-13 12-14-13 to 12-25-13
E65.10N 64.7987, -41.8569	Koge Bugt	02-08-13 to 02-19-13 04-26-13 to 05-07-13 07-12-13 to 07-23-13 08-25-13 to 09-05-13 11-10-13 to 11-21-13
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	05-02-13 to 05-13-13 07-07-13 to 07-29-13 07-29-13 to 08-09-13 08-09-13 to 08-20-13 08-20-13 to 08-31-13 11-16-13 to 11-27-13
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	01-07-13 to 01-29-13 01-29-13 to 02-09-13 02-09-13 to 02-20-13 02-20-13 to 03-03-13 03-03-13 to 03-14-13 03-14-13 to 03-25-13 05-08-13 to 05-19-13 05-19-13 to 05-30-13 05-30-13 to 06-10-13 06-10-13 to 07-02-13 07-02-13 to 07-24-13 07-19-13 to 07-30-13 07-24-13 to 08-04-13 07-30-13 to 08-10-13 08-04-13 to 09-06-13 08-10-13 to 08-21-13 08-21-13 to 09-01-13 09-01-13 to 09-12-13 09-06-13 to 09-28-13 09-12-13 to 10-04-13 09-28-13 to 10-31-13 10-04-13 to 10-26-13 10-26-13 to 11-06-13 10-31-13 to 11-22-13 11-06-13 to 11-17-13 11-17-13 to 11-28-13 11-22-13 to 12-03-13 12-03-13 to 12-14-13 12-14-13 to 12-25-13 12-25-13 to 01-05-14
E66.60N¹ 66.3305, -37.4428	Midgard Midgard Nord	02-09-13 to 02-20-13 04-27-13 to 05-08-13 07-02-13 to 07-13-13 08-26-13 to 09-06-13
E66.90N 66.5045, -36.2923	kruuse steenstrup to east tasiliaq	03-04-13 to 03-15-13 12-15-13 to 01-06-14
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	01-30-13 to 02-10-13 04-28-13 to 05-09-13 07-14-13 to 07-25-13 07-25-13 to 08-27-13 08-27-13 to 09-07-13
E68.50N² 68.3044, -31.1040	Courtauld Frederiksborg Christian IV Sorgenfri	12-16-13 to 12-27-13
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	01-08-13 to 01-19-13 01-19-13 to 01-30-13 01-30-13 to 02-10-13 02-10-13 to 02-21-13 02-21-13 to 03-04-13 03-04-13 to 03-15-13 03-15-13 to 03-26-13 03-26-13 to 04-06-13 04-06-13 to 04-28-13 04-28-13 to 05-09-13 05-09-13 to 05-31-13 05-31-13 to 07-03-13 07-03-13 to 07-14-13 07-14-13 to 08-05-13 10-21-13 to 11-01-13 11-01-13 to 11-12-13 11-12-13 to 11-23-13 11-23-13 to 12-04-13 12-04-13 to 12-15-13 12-15-13 to 12-26-13 12-26-13 to 01-06-14
E71.75N 71.4887, -30.9758	Daugaard-Jensen	02-28-13 to 03-11-13 03-01-13 to 03-12-13 03-07-13 to 03-18-13
E79.40N 79.190, -24.0779	Fjorden	03-09-13 to 03-20-13 12-31-13 to 01-11-14
E81.35N 81.1300, -30.0074	Hagan	02-28-13 to 03-11-13 12-22-13 to 01-02-14
E81.45N 81.196, -34.6273	Acad	03-03-13 to 03-14-13 12-14-13 to 12-25-13
W61.70N 61.4746, -48.4912	Sermiligarssuk	03-06-13 to 03-17-13 12-17-13 to 12-28-13
W62.10N 61.8077, -49.0172	Nigerdlikasik Avangnardleq Ukassorssuaq	02-28-13 to 03-11-13 12-22-13 to 01-02-14
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	02-06-13 to 02-17-13 04-24-13 to 05-05-13 06-29-13 to 07-10-13 08-23-13 to 09-03-13
W64.75N² 64.4610, -50.1732	Ujaragssuit Narssap	12-17-13 to 12-28-13
W68.60N³ 68.3079, -50.6854	Saraqardliup glacier Alangordlek glacier Nordenskiold glacier	02-05-13 to 03-10-13 03-10-13 to 03-21-13 05-04-13 to 05-15-13 05-15-13 to 05-26-13 05-26-13 to 06-06-13 06-06-13 to 06-17-13 06-17-13 to 06-28-13 06-28-13 to 07-09-13 07-09-13 to 07-31-13 07-31-13 to 08-22-13 08-22-13 to 09-02-13 09-02-13 to 09-13-13 09-13-13 to 09-24-13
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	01-09-13 to 01-20-13 01-10-13 to 01-21-13 01-11-13 to 01-22-13 01-20-13 to 01-31-13 01-21-13 to 02-01-13 01-31-13 to 02-11-13 02-01-13 to 02-12-13 02-11-13 to 02-22-13 02-12-13 to 02-23-13 02-13-13 to 02-24-13 02-24-13 to 03-07-13 03-06-13 to 03-17-13 03-07-13 to 03-18-13 04-07-13 to 04-18-13 04-18-13 to 04-29-13 04-19-13 to 04-30-13 04-29-13 to 05-10-13 04-30-13 to 05-11-13 04-30-13 to 05-11-13 05-11-13 to 05-22-13 05-22-13 to 06-02-13 05-23-13 to 06-03-13 06-02-13 to 06-13-13 06-03-13 to 06-14-13 06-08-13 to 06-19-13 06-13-13 to 06-24-13 06-14-13 to 06-25-13 06-24-13 to 07-05-13 07-05-13 to 07-16-13 07-05-13 to 07-16-13 07-11-13 to 07-22-13 07-16-13 to 08-18-13 07-16-13 to 07-27-13 07-17-13 to 07-28-13 07-22-13 to 08-02-13 08-02-13 to 08-13-13 08-13-13 to 08-24-13 08-17-13 to 08-28-13 08-18-13 to 08-29-13 08-18-13 to 08-29-13 08-19-13 to 08-30-13 08-24-13 to 09-04-13 08-28-13 to 09-08-13 08-29-13 to 09-09-13 08-30-13 to 09-10-13 09-09-13 to 09-20-13 09-10-13 to 09-21-13 09-20-13 to 10-01-13 09-21-13 to 10-02-13 10-01-13 to 10-12-13 10-02-13 to 10-13-13 10-12-13 to 10-23-13 10-13-13 to 10-24-13 10-18-13 to 10-29-13 10-23-13 to 11-03-13 10-24-13 to 11-04-13 10-29-13 to 11-09-13 11-03-13 to 11-14-13 11-04-13 to 11-15-13 11-09-13 to 11-20-13 11-14-13 to 11-25-13 11-14-13 to 11-25-13 11-15-13 to 11-26-13 11-20-13 to 12-01-13 11-25-13 to 12-06-13 11-26-13 to 12-07-13 12-01-13 to 12-12-13 12-06-13 to 12-17-13 12-07-13 to 12-18-13 12-12-13 to 12-23-13 12-17-13 to 12-28-13 12-18-13 to 12-29-13 12-23-13 to 01-03-14 12-28-13 to 01-08-14
W69.95N 69.6356, -50.6122	Kangilerngata Kujatdleq Torsukatat	02-28-13 to 03-22-13 12-22-13 to 01-02-14
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	02-06-13 to 02-17-13 04-24-13 to 05-05-13 06-29-13 to 07-10-13 08-23-13 to 09-03-13 11-19-13 to 11-30-13
W70.90N² 70.7542, -50.9613	Perdlerfiup Silardleq	12-18-13 to 12-29-13
W71.65N 71.3100, -51.8327	Kangerdlugssup Rink	02-01-13 to 02-12-13 04-30-13 to 05-11-13 06-24-13 to 07-05-13 07-05-13 to 07-16-13 07-16-13 to 07-27-13 07-27-13 to 08-18-13 08-18-13 to 08-29-13 11-03-13 to 11-14-13 11-14-13 to 12-06-13 12-06-13 to 12-17-13 12-17-13 to 12-28-13 12-28-13 to 01-08-14
W72.00N 71.6540, -52.8014	Ingia Umiamako	06-19-13 to 06-30-13 06-30-13 to 07-22-13 07-22-13 to 08-02-13 09-15-13 to 10-07-13 10-07-13 to 10-29-13 10-29-13 to 11-20-13 11-20-13 to 12-12-13 12-12-13 to 01-03-14
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	02-07-13 to 02-18-13 04-25-13 to 05-06-13 06-30-13 to 07-11-13 09-15-13 to 09-26-13 11-09-13 to 11-20-13
W73.45N 73.1520, -55.6912	Kakivfat Giesecke Nutarmiut Tuvssaq	02-01-13 to 02-12-13 04-30-13 to 05-11-13 07-05-13 to 07-16-13 09-20-13 to 10-01-13 11-14-13 to 11-25-13
W73.75N 73.1520, -55.6912	Comell Sugarloaf Ussing	02-06-13 to 02-17-13 04-24-13 to 05-05-13 06-29-13 to 07-10-13 10-06-13 to 10-17-13 10-17-13 to 11-19-13 11-19-13 to 11-30-13
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	02-07-13 to 02-18-13 04-25-13 to 05-06-13 06-30-13 to 07-11-13 08-24-13 to 09-15-13 11-09-13 to 11-20-13
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	02-01-13 to 02-12-13 04-30-13 to 05-11-13 11-14-13 to 11-25-13
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	02-08-13 to 02-19-13 04-26-13 to 05-07-13 07-01-13 to 07-12-13 08-25-13 to 09-05-13
W75.85N 75.4736, -59.2722	South of Nansen Nansen Nordenskiold	02-02-13 to 02-13-13 05-01-13 to 05-12-13 07-06-13 to 07-17-13 07-17-13 to 08-19-13 08-19-13 to 08-30-13
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	02-07-13 to 02-18-13 04-25-13 to 05-06-13 07-11-13 to 08-02-13 08-02-13 to 08-24-13 08-24-13 to 09-04-13
W76.25N 75.9067, -61.2365	Balgoni Docker Fisher Igssuarssuit Leven	02-01-13 to 02-12-13 04-30-13 to 05-11-13 11-14-13 to 11-25-13
W76.35N 75.7416, -63.3988	Mohn Gade Meteor Yngvar Nielson	03-05-13 to 03-16-13 03-21-13 to 04-01-13 12-16-13 to 12-27-13 12-21-13 to 01-01-14
W76.40N 76.0579, -65.9643	Savigssuaq Helland Sidebriks	03-04-13 to 03-15-13 12-15-13 to 12-26-13
W76.45N 76.1084, -67.6907	Dedodes Harald Moltke	03-03-13 to 03-14-13 12-14-13 to 12-25-13
W77.55N 77.0728, -66.2296	Leidy Mane Heilprin Mellville Tracy	02-28-13 to 03-11-13 12-11-13 to 12-22-13
W79.75N 79.3702, -65.1597	Humboldt	03-10-13 to 03-21-13 12-21-13 to 01-01-14
W80.75N 79.9328, -61.5545	Petermann	03-05-13 to 03-16-13 12-16-13 to 12-27-13
W81.25N 80.9256, -51.3505	Ryder	12-20-13 to 12-31-13
W81.5N² 81.1505, -46.6109	Chow	03-06-13 to 03-17-13 12-17-13 to 12-28-13
S44.84W 61.0923, -45.3465	Kiagtut Qorqup	03-07-13 to 03-18-13
S45.43W 61.2196, -45.8994	Eqalorutsit Kangigdlit Sermia	03-02-13 to 03-13-13
S46.31W¹ 60.9223, -46.7905	Eqalorutsit Kangigdlit Sermia West	02-02-13 to 02-13-13 02-13-13 to 02-24-13 12-17-13 to 12-28-13

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2014
E61.10N 60.8004, -43.9589	Unnamed near Danells Danells Kanderdluluk Kap to Herlut to Trolle Kap to Njordenskjold	04-19-14 to 04-30-14 06-24-14 to 07-05-14 08-18-14 to 08-29-14
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	02-16-14 to 02-27-14 05-15-14 to 05-26-14 10-05-14 to 10-16-14 12-10-14 to 12-21-14
E62.10N 61.801, -43.2149	Puisortuq North Puisortuq South	05-10-14 to 05-21-14 06-23-14 to 07-04-14 07-04-14 to 08-06-14 08-06-14 to 08-17-14 12-16-14 to 12-27-14
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	01-04-14 to 02-06-14 02-06-14 to 02-17-14 05-27-14 to 06-07-14 06-07-14 to 06-18-14 06-18-14 to 06-29-14 06-29-14 to 07-21-14 07-21-14 to 08-01-14 08-01-14 to 08-23-14 08-23-14 to 09-03-14 11-08-14 to 11-19-14
E63.00N 62.7212, -43.5332	Heimdal	02-06-14 to 02-17-14 06-07-14 to 06-18-14 06-18-14 to 06-29-14 06-29-14 to 07-21-14 07-21-14 to 08-12-14 08-12-14 to 08-23-14 08-23-14 to 09-03-14 12-22-14 to 01-02-15
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	02-12-14 to 02-23-14 05-11-14 to 05-22-14 05-22-14 to 06-13-14 06-13-14 to 06-24-14 06-24-14 to 07-16-14 07-16-14 to 07-27-14 07-27-14 to 08-29-14 08-29-14 to 09-09-14 11-14-14 to 11-25-14
E63.85N 63.5620, -42.4419	Bernstorf	02-06-14 to 02-17-14 06-07-14 to 06-18-14 06-18-14 to 06-29-14 06-29-14 to 07-21-14 07-21-14 to 08-01-14 08-01-14 to 08-23-14 08-23-14 to 09-03-14 12-22-14 to 01-02-15
E64.35N 64.0768, -42.2688	Gyldenslove	02-11-14 to 02-22-14 05-10-14 to 05-21-14 05-21-14 to 06-12-14 06-12-14 to 06-23-14 06-23-14 to 07-15-14 07-15-14 to 07-26-14 07-26-14 to 08-28-14 08-28-14 to 09-08-14
E64.65N 64.3291, -41.7539	Fridtjof	05-06-14 to 05-17-14 06-30-14 to 07-11-14 07-11-14 to 08-02-14 08-02-14 to 08-13-14 12-23-14 to 01-03-15
E65.10N 64.7987, -41.8569	Koge Bugt	02-06-14 to 02-17-14 06-18-14 to 06-29-14 08-12-14 to 08-23-14 08-23-14 to 09-03-14 11-08-14 to 11-19-14
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	02-01-14 to 02-12-14 05-11-14 to 05-22-14 05-22-14 to 06-13-14 06-13-14 to 06-24-14 06-24-14 to 07-16-14 07-16-14 to 07-27-14 07-27-14 to 08-29-14 08-29-14 to 09-09-14 11-14-14 to 11-25-14
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	01-05-14 to 01-27-14 01-27-14 to 02-07-14 02-07-14 to 03-12-14 03-12-14 to 04-03-14 04-03-14 to 05-06-14 05-06-14 to 05-17-14 05-17-14 to 05-28-14 05-28-14 to 06-08-14 06-08-14 to 06-19-14 06-19-14 to 06-30-14 06-30-14 to 07-11-14 07-11-14 to 08-02-14 08-02-14 to 08-13-14 08-13-14 to 08-24-14 08-24-14 to 09-04-14 09-04-14 to 09-15-14 10-18-14 to 11-09-14 11-09-14 to 12-01-14 12-23-14 to 01-03-15
E66.60N¹ 66.3305, -37.4428	Midgard Midgard Nord	01-16-14 to 01-27-14 01-27-14 to 02-07-14 02-07-14 to 02-18-14 06-08-14 to 06-19-14 06-19-14 to 07-11-14 07-11-14 to 07-22-14 07-22-14 to 08-02-14 08-02-14 to 08-24-14 08-24-14 to 09-04-14 11-09-14 to 11-20-14
E66.90N 66.5045, -36.2923	kruuse steenstrup to east tasiliaq	04-15-14 to 05-07-14 07-12-14 to 07-23-14 10-08-14 to 10-19-14 12-13-14 to 12-24-14
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	01-06-14 to 02-08-14 02-08-14 to 02-19-14 05-29-14 to 06-09-14 06-09-14 to 06-20-14 06-20-14 to 07-01-14 07-01-14 to 08-03-14 08-03-14 to 08-14-14 08-14-14 to 09-05-14 09-05-14 to 09-16-14 11-10-14 to 11-21-14
E68.50N² 68.3044, -31.1040	Courtauld Frederiksborg Christian IV Sorgenfri	04-27-14 to 05-08-14 06-21-14 to 07-02-14 07-02-14 to 08-04-14 08-04-14 to 08-15-14 12-14-14 to 12-25-14
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	01-06-14 to 01-17-14 01-17-14 to 01-28-14 01-28-14 to 02-08-14 02-08-14 to 03-13-14 03-13-14 to 04-04-14 03-29-14 to 04-09-14 04-04-14 to 04-15-14 04-09-14 to 04-20-14 04-15-14 to 05-07-14 04-20-14 to 05-12-14 05-07-14 to 05-29-14 05-29-14 to 06-09-14 06-09-14 to 06-20-14 06-20-14 to 07-01-14 07-01-14 to 07-12-14 07-12-14 to 08-03-14 07-17-14 to 07-28-14 08-03-14 to 08-14-14 08-14-14 to 08-25-14 08-25-14 to 09-05-14 09-05-14 to 09-16-14 10-19-14 to 11-10-14 11-10-14 to 12-02-14 12-24-14 to 01-04-15
E71.75N 71.4887, -30.9758	Daugaard-Jensen	04-18-14 to 04-29-14 05-03-14 to 05-14-14 05-04-14 to 05-15-14 12-05-14 to 12-16-14 12-16-14 to 12-27-14
E79.40N 79.190, -24.0779	Fjorden	04-20-14 to 05-01-14 06-25-14 to 07-06-14 07-06-14 to 08-08-14 08-08-14 to 08-19-14 12-18-14 to 12-29-14
E81.35N 81.1300, -30.0074	Hagan	04-22-14 to 05-03-14 07-08-14 to 07-19-14 09-01-14 to 09-12-14 12-20-14 to 12-31-14
E81.45N 81.196, -34.6273	Acad	05-06-14 to 05-17-14 06-30-14 to 07-11-14 07-11-14 to 08-02-14 08-02-14 to 08-13-14 12-12-14 to 12-23-14
W61.70N 61.4746, -48.4912	Sermiligarssuk	04-17-14 to 04-28-14 06-22-14 to 07-03-14 08-27-14 to 09-07-14 12-15-14 to 12-26-14
W62.10N 61.8077, -49.0172	Nigerdlikasik Avangnardleq Ukassorssuaq	05-03-14 to 05-14-14 06-27-14 to 07-08-14 07-08-14 to 08-10-14 08-10-14 to 08-21-14 12-20-14 to 12-31-14
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	02-04-14 to 02-15-14 05-25-14 to 06-05-14 06-05-14 to 06-16-14 06-16-14 to 06-27-14 06-27-14 to 07-19-14 07-19-14 to 07-30-14 07-30-14 to 09-01-14 09-01-14 to 09-12-14 11-17-14 to 11-28-14
W64.75N² 64.4610, -50.1732	Ujaragssuit Narssap	05-31-14 to 06-11-14 06-11-14 to 06-22-14 06-22-14 to 07-03-14 07-03-14 to 07-14-14 08-05-14 to 08-16-14 12-15-14 to 12-26-14
W68.60N³ 68.3079, -50.6854	Saraqardliup glacier Alangordlek glacier Nordenskiold glacier	02-03-14 to 02-14-14 05-13-14 to 06-04-14 06-04-14 to 06-15-14 06-15-14 to 06-26-14 06-26-14 to 07-07-14 07-07-14 to 07-18-14 07-18-14 to 07-29-14 07-29-14 to 08-09-14 08-09-14 to 08-20-14 08-20-14 to 08-31-14 08-31-14 to 09-11-14 11-16-14 to 11-27-14
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	01-08-14 to 01-19-14 01-19-14 to 01-30-14 01-20-14 to 01-31-14 01-31-14 to 02-11-14 02-10-14 to 02-21-14 03-03-14 to 03-14-14 03-05-14 to 03-16-14 03-14-14 to 03-25-14 03-25-14 to 04-05-14 04-07-14 to 04-18-14 04-16-14 to 04-27-14 04-18-14 to 04-29-14 05-04-14 to 05-15-14 05-15-14 to 05-26-14 05-21-14 to 06-01-14 05-26-14 to 06-06-14 05-31-14 to 06-11-14 06-06-14 to 06-17-14 06-10-14 to 06-21-14 06-11-14 to 06-22-14 06-11-14 to 06-22-14 06-17-14 to 06-28-14 06-21-14 to 07-02-14 06-22-14 to 07-03-14 06-22-14 to 07-03-14 06-23-14 to 07-04-14 06-28-14 to 07-09-14 07-03-14 to 07-14-14 07-04-14 to 07-15-14 07-09-14 to 07-20-14 07-13-14 to 07-24-14 07-14-14 to 07-25-14 07-14-14 to 07-25-14 07-20-14 to 07-31-14 07-25-14 to 08-05-14 08-17-14 to 08-28-14 08-22-14 to 09-02-14 08-28-14 to 09-08-14 09-02-14 to 09-13-14 09-28-14 to 10-09-14 10-09-14 to 10-20-14 10-11-14 to 10-22-14 10-16-14 to 10-27-14 10-22-14 to 11-02-14 10-27-14 to 11-07-14 11-02-14 to 11-13-14 11-07-14 to 11-18-14 11-13-14 to 11-24-14 11-18-14 to 11-29-14 11-23-14 to 12-04-14 11-24-14 to 12-05-14 11-29-14 to 12-10-14 12-03-14 to 12-14-14 12-04-14 to 12-15-14 12-04-14 to 12-15-14 12-05-14 to 12-16-14 12-10-14 to 12-21-14 12-14-14 to 12-25-14 12-15-14 to 12-26-14 12-16-14 to 12-27-14 12-21-14 to 01-01-15 12-25-14 to 01-05-15 12-26-14 to 01-06-15
W69.95N 69.6356, -50.6122	Kangilerngata Kujatdleq Torsukatat	06-16-14 to 06-27-14 11-06-14 to 12-09-14 12-09-14 to 12-20-14
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	01-24-14 to 02-04-14 02-04-14 to 02-15-14 02-15-14 to 02-26-14 02-26-14 to 03-09-14 04-22-14 to 05-25-14 05-25-14 to 06-05-14
W70.90N² 70.7542, -50.9613	Perdlerfiup Silardleq	04-18-14 to 04-29-14 06-23-14 to 07-04-14 07-04-14 to 08-06-14 08-06-14 to 08-17-14 12-16-14 to 12-27-14
W71.65N 71.3100, -51.8327	Kangerdlugssup Rink	01-08-14 to 01-19-14 01-19-14 to 01-30-14 04-28-14 to 05-31-14 05-31-14 to 07-03-14 07-03-14 to 07-25-14 07-25-14 to 08-05-14 08-05-14 to 08-16-14 08-16-14 to 08-27-14 08-27-14 to 09-07-14 09-07-14 to 09-18-14
W72.00N 71.6540, -52.8014	Ingia Umiamako	05-04-14 to 05-26-14 05-26-14 to 06-17-14 06-17-14 to 07-09-14 07-09-14 to 07-31-14 07-31-14 to 08-11-14 08-11-14 to 08-22-14 08-22-14 to 09-13-14 09-13-14 to 10-05-14 10-05-14 to 10-27-14 12-10-14 to 01-01-15
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	02-05-14 to 02-16-14 05-26-14 to 06-06-14 06-06-14 to 06-17-14 06-17-14 to 06-28-14 06-28-14 to 07-20-14 07-20-14 to 07-31-14 07-31-14 to 08-22-14 08-22-14 to 09-02-14 11-18-14 to 11-29-14
W73.45N 73.1520, -55.6912	Kakivfat Giesecke Nutarmiut Tuvssaq	02-10-14 to 02-21-14 05-20-14 to 05-31-14 05-31-14 to 06-22-14 06-22-14 to 07-03-14 07-03-14 to 07-25-14 07-25-14 to 08-05-14 08-05-14 to 08-27-14 08-27-14 to 09-07-14 11-12-14 to 11-23-14
W73.75N 73.1520, -55.6912	Comell Sugarloaf Ussing	02-04-14 to 02-15-14 05-14-14 to 05-25-14 05-25-14 to 06-16-14 06-16-14 to 06-27-14 06-27-14 to 07-19-14 07-19-14 to 07-30-14 07-30-14 to 08-21-14 08-21-14 to 09-01-14 12-20-14 to 12-31-14
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	02-05-14 to 02-16-14 05-26-14 to 06-06-14 06-06-14 to 06-17-14 06-17-14 to 06-28-14 06-28-14 to 07-20-14 07-20-14 to 07-31-14 07-31-14 to 08-22-14 08-22-14 to 09-02-14 11-18-14 to 11-29-14
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	02-10-14 to 02-21-14 05-31-14 to 06-11-14 06-11-14 to 06-22-14 06-22-14 to 07-03-14 07-03-14 to 07-25-14 07-25-14 to 08-05-14 08-05-14 to 08-27-14 08-27-14 to 09-07-14 11-12-14 to 11-23-14
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	01-04-14 to 01-15-14 01-15-14 to 02-17-14 02-17-14 to 02-28-14 05-27-14 to 06-07-14 06-07-14 to 06-18-14 06-18-14 to 06-29-14 06-29-14 to 07-21-14 07-21-14 to 08-12-14 08-12-14 to 08-23-14 08-23-14 to 09-03-14 11-08-14 to 11-19-14
W75.85N 75.4736, -59.2722	South of Nansen Nansen Nordenskiold	01-09-14 to 02-11-14 02-11-14 to 02-22-14 05-10-14 to 05-21-14 05-21-14 to 06-12-14 06-12-14 to 06-23-14 06-23-14 to 07-15-14 07-15-14 to 07-26-14 07-26-14 to 08-28-14 08-28-14 to 09-08-14 11-24-14 to 12-05-14
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	01-14-14 to 02-05-14 02-05-14 to 02-16-14 05-26-14 to 06-17-14 06-17-14 to 06-28-14 06-28-14 to 07-20-14 07-20-14 to 08-11-14 08-11-14 to 09-02-14 09-02-14 to 09-13-14 11-18-14 to 11-29-14 11-29-14 to 12-10-14
W76.25N 75.9067, -61.2365	Balgoni Docker Fisher Igssuarssuit Leven	02-10-14 to 02-21-14 05-31-14 to 06-11-14 06-11-14 to 06-22-14 06-22-14 to 07-03-14 07-03-14 to 07-25-14 07-25-14 to 08-05-14 08-05-14 to 08-27-14 08-27-14 to 09-07-14 11-12-14 to 11-23-14
W76.35N 75.7416, -63.3988	Mohn Gade Meteor Yngvar Nielson	04-16-14 to 04-27-14 04-21-14 to 05-02-14 06-21-14 to 07-02-14 06-26-14 to 07-07-14 07-02-14 to 08-04-14 07-07-14 to 08-09-14 08-04-14 to 08-15-14 08-09-14 to 08-20-14 12-14-14 to 12-25-14 12-19-14 to 12-30-14
W76.40N 76.0579, -65.9643	Savigssuaq Helland Sidebriks	05-07-14 to 05-18-14 05-18-14 to 06-20-14 06-20-14 to 07-01-14 08-14-14 to 08-25-14 12-13-14 to 12-24-14
W76.45N 76.1084, -67.6907	Dedodes Harald Moltke	05-06-14 to 05-17-14 06-30-14 to 07-11-14 08-24-14 to 09-04-14 12-12-14 to 12-23-14
W77.55N 77.0728, -66.2296	Leidy Mane Heilprin Mellville Tracy	05-03-14 to 05-14-14 06-27-14 to 07-08-14 07-08-14 to 08-10-14 08-10-14 to 08-21-14 12-20-14 to 12-31-14
W79.75N 79.3702, -65.1597	Humboldt	05-02-14 to 05-13-14 06-26-14 to 07-07-14 07-07-14 to 08-09-14 08-09-14 to 08-20-14 12-19-14 to 12-30-14
W80.75N 79.9328, -61.5545	Petermann	04-16-14 to 04-27-14 06-21-14 to 07-02-14 08-15-14 to 08-26-14 12-14-14 to 12-25-14
W81.25N 80.9256, -51.3505	Ryder	06-14-14 to 06-25-14 06-25-14 to 07-06-14 07-06-14 to 08-08-14 09-21-14 to 10-13-14 12-18-14 to 12-29-14
W81.5N² 81.1505, -46.6109	Chow	04-17-14 to 04-28-14 06-22-14 to 07-03-14 08-16-14 to 08-27-14
S44.84W 61.0923, -45.3465	Kiagtut Qorqup	01-20-14 to 01-31-14 06-23-14 to 07-04-14 08-17-14 to 09-19-14 09-19-14 to 09-30-14 12-16-14 to 12-27-14
S45.43W 61.2196, -45.8994	Eqalorutsit Kangigdlit Sermia	05-05-14 to 05-27-14 05-27-14 to 06-29-14 06-29-14 to 07-10-14 07-10-14 to 08-01-14 08-01-14 to 08-12-14 12-22-14 to 01-02-15
S46.31W¹ 60.9223, -46.7905	Eqalorutsit Kangigdlit Sermia West	04-17-14 to 04-28-14 06-22-14 to 07-03-14 07-03-14 to 08-05-14 08-05-14 to 08-16-14 12-15-14 to 12-26-14

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2015
E61.10N 60.8004, -43.9589	Unnamed near Danells Danells Kanderdluluk Kap to Herlut to Trolle Kap to Njordenskjold	07-03-15 to 07-14-15 08-27-15 to 09-07-15 12-15-15 to 12-26-15
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	02-14-15 to 02-25-15 05-13-15 to 05-24-15 11-16-15 to 11-27-15
E62.10N 61.801, -43.2149	Puisortuq North Puisortuq South	04-16-15 to 04-27-15 06-21-15 to 07-02-15 08-26-15 to 09-06-15 12-14-15 to 12-25-15
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	02-04-15 to 02-15-15 05-25-15 to 06-16-15 06-16-15 to 06-27-15 06-27-15 to 07-08-15 07-08-15 to 07-19-15 07-19-15 to 07-30-15 07-30-15 to 08-10-15 08-10-15 to 08-21-15 08-21-15 to 09-01-15 11-17-15 to 11-28-15
E63.00N 62.7212, -43.5332	Heimdal	01-02-15 to 02-04-15 02-04-15 to 02-15-15 07-08-15 to 07-19-15 07-19-15 to 07-30-15 07-30-15 to 08-10-15 08-10-15 to 08-21-15 08-21-15 to 09-01-15 09-01-15 to 09-12-15 11-28-15 to 12-09-15
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	02-10-15 to 02-21-15 05-20-15 to 05-31-15 05-31-15 to 07-03-15 07-03-15 to 07-14-15 07-14-15 to 07-25-15 07-25-15 to 08-05-15 08-05-15 to 08-16-15 08-16-15 to 08-27-15 08-27-15 to 09-07-15 09-07-15 to 09-18-15 11-12-15 to 11-23-15
E63.85N 63.5620, -42.4419	Bernstorf	01-02-15 to 02-04-15 02-04-15 to 02-15-15 07-08-15 to 07-19-15 07-19-15 to 07-30-15 07-30-15 to 08-10-15 08-10-15 to 08-21-15 08-21-15 to 09-01-15 09-01-15 to 09-12-15 11-28-15 to 12-09-15
E64.35N 64.0768, -42.2688	Gyldenslove	02-09-15 to 02-20-15 07-02-15 to 07-13-15 07-13-15 to 07-24-15 07-24-15 to 08-04-15 08-04-15 to 08-15-15 08-15-15 to 08-26-15 08-26-15 to 09-06-15 09-06-15 to 09-17-15 12-14-15 to 12-25-15
E64.65N 64.3291, -41.7539	Fridtjof	06-17-15 to 06-28-15 08-22-15 to 09-02-15
E65.10N 64.7987, -41.8569	Koge Bugt	02-04-15 to 02-15-15 07-08-15 to 07-19-15 07-19-15 to 07-30-15 07-30-15 to 08-10-15 08-10-15 to 08-21-15 08-21-15 to 09-01-15 09-01-15 to 09-12-15 11-17-15 to 11-28-15
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	02-10-15 to 02-21-15 05-20-15 to 06-11-15 06-11-15 to 07-03-15 07-03-15 to 07-14-15 07-14-15 to 07-25-15 07-25-15 to 08-05-15 08-05-15 to 08-16-15 08-27-15 to 09-07-15 09-07-15 to 09-18-15 11-12-15 to 11-23-15
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	01-03-15 to 01-14-15 01-14-15 to 01-25-15 01-25-15 to 02-05-15 02-05-15 to 02-16-15 02-16-15 to 02-27-15 05-04-15 to 05-26-15 05-26-15 to 06-06-15 06-06-15 to 06-17-15 06-17-15 to 06-28-15 06-28-15 to 07-09-15 07-09-15 to 07-20-15 07-20-15 to 07-31-15 07-31-15 to 08-11-15 08-11-15 to 08-22-15 08-22-15 to 09-02-15 09-12-15 to 09-23-15 09-23-15 to 10-04-15 10-04-15 to 10-15-15 10-15-15 to 10-26-15 10-26-15 to 11-06-15 11-06-15 to 11-17-15 11-17-15 to 11-28-15 11-28-15 to 12-09-15 12-09-15 to 12-20-15 12-20-15 to 12-31-15 12-31-15 to 01-11-16
E66.60N¹ 66.3305, -37.4428	Midgard Midgard Nord	02-05-15 to 02-16-15 05-15-15 to 05-26-15 05-26-15 to 06-17-15 06-17-15 to 06-28-15 06-28-15 to 07-09-15 07-09-15 to 07-20-15 07-20-15 to 07-31-15 07-31-15 to 08-11-15 08-11-15 to 08-22-15 08-22-15 to 09-02-15 11-18-15 to 11-29-15
E66.90N 66.5045, -36.2923	kruuse steenstrup to east tasiliaq	04-24-15 to 05-05-15 06-18-15 to 07-10-15 09-03-15 to 09-14-15
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	02-06-15 to 02-17-15 05-16-15 to 05-27-15 05-27-15 to 06-07-15 06-07-15 to 06-29-15 06-29-15 to 07-21-15 07-21-15 to 08-01-15 08-01-15 to 08-12-15 08-12-15 to 08-23-15 11-08-15 to 11-19-15
E68.50N² 68.3044, -31.1040	Courtauld Frederiksborg Christian IV Sorgenfri	04-14-15 to 04-25-15 06-19-15 to 06-30-15 08-24-15 to 09-04-15 12-23-15 to 01-14-16
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	01-04-15 to 01-15-15 01-15-15 to 01-26-15 01-26-15 to 02-06-15 02-17-15 to 02-28-15 04-13-15 to 04-24-15 04-24-15 to 05-05-15 05-05-15 to 05-16-15 05-16-15 to 05-27-15 05-27-15 to 06-07-15 06-07-15 to 06-18-15 06-18-15 to 06-29-15 06-29-15 to 07-10-15 07-10-15 to 07-21-15 07-21-15 to 08-01-15 08-01-15 to 08-12-15 08-12-15 to 08-23-15 08-23-13 to 09-03-15 09-03-15 to 09-14-15 09-14-15 to 09-25-15 09-25-15 to 10-06-15 10-06-15 to 10-17-15 10-17-15 to 10-28-15 10-28-15 to 11-08-15 11-08-15 to 11-30-15 11-30-15 to 12-11-15 12-11-15 to 01-02-16
E79.40N 79.190, -24.0779	Fjorden	04-18-15 to 04-29-15 06-23-15 to 07-04-15 08-28-15 to 09-08-15 12-16-15 to 12-27-15
E81.35N 81.1300, -30.0074	Hagan	04-20-15 to 05-01-15 06-14-15 to 06-25-15 08-30-15 to 09-10-15 12-18-15 to 12-29-15
E81.45N 81.196, -34.6273	Acad	04-12-15 to 04-23-15 06-17-15 to 06-28-15 08-22-15 to 09-02-15 12-21-15 to 01-01-16
W61.70N 61.4746, -48.4912	Sermiligarssuk	04-15-15 to 04-26-15 06-20-15 to 07-01-15 08-25-15 to 09-05-15 12-24-15 to 01-04-16
W62.10N 61.8077, -49.0172	Nigerdlikasik Avangnardleq Ukassorssuaq	04-09-15 to 04-20-15 06-14-15 to 06-25-15 08-30-15 to 09-10-15
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	02-02-15 to 02-13-15 05-12-15 to 05-23-15 05-23-15 to 06-14-15 06-14-15 to 06-25-15 06-25-15 to 07-17-15 07-17-15 to 07-28-15 07-28-15 to 08-08-15 08-08-15 to 08-19-15 08-19-15 to 08-30-15 08-30-15 to 09-10-15 11-15-15 to 12-07-15
W64.75N² 64.4610, -50.1732	Ujaragssuit Narssap	04-26-15 to 05-07-15 06-20-15 to 07-01-15 08-25-15 to 09-05-15 12-24-15 to 01-04-16
W68.60N³ 68.3079, -50.6854	Saraqardliup glacier Alangordlek glacier Nordenskiold glacier	02-01-15 to 03-06-15 07-27-15 to 08-07-15 08-07-15 to 08-18-15 08-18-15 to 08-29-15
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	01-01-15 to 01-12-15 01-05-15 to 01-16-15 01-06-15 to 01-17-15 01-16-15 to 01-27-15 01-17-15 to 01-28-15 01-23-15 to 02-03-15 01-28-15 to 02-08-15 01-29-15 to 02-09-15 02-03-15 to 02-14-15 02-08-15 to 02-19-15 02-19-15 to 03-02-15 03-01-15 to 03-12-15 03-02-15 to 03-13-15 03-12-15 to 03-23-15 03-13-15 to 03-24-15 03-23-15 to 04-03-15 04-03-15 to 04-14-15 04-14-15 to 04-25-15 04-25-15 to 05-06-15 05-06-15 to 05-17-15 05-17-15 to 05-28-15 05-18-15 to 05-29-15 05-28-15 to 06-08-15 05-29-15 to 06-09-15 06-20-15 to 07-01-15 06-20-15 to 07-01-15 07-01-15 to 07-12-15 07-01-15 to 07-12-15 07-11-15 to 07-22-15 07-12-15 to 07-23-15 07-22-15 to 08-02-15 07-23-15 to 08-03-15 08-02-15 to 08-13-15 08-03-15 to 08-14-15 08-13-15 to 08-24-15 08-14-15 to 08-25-15 08-24-15 to 09-04-15 08-25-15 to 09-05-15 09-04-15 to 09-15-15 09-05-15 to 09-16-15 09-15-15 to 09-26-15 09-16-15 to 09-27-15 09-26-15 to 10-07-15 09-27-15 to 10-08-15 10-07-15 to 10-18-15 10-08-15 to 10-19-15 10-18-15 to 10-29-15 10-19-15 to 10-30-15 10-29-15 to 11-09-15 11-09-15 to 11-20-15 11-10-15 to 11-21-15 11-20-15 to 12-01-15 12-01-15 to 12-12-15 12-02-15 to 12-13-15 12-12-15 to 12-23-15 12-13-15 to 12-24-15 12-23-15 to 01-03-16 12-24-15 to 01-04-16
W69.95N 69.6356, -50.6122	Kangilerngata Kujatdleq Torsukatat	06-03-15 to 06-14-15 06-14-15 to 06-25-15 06-25-15 to 07-06-15 07-06-15 to 07-17-15 08-30-15 to 09-10-15 12-18-15 to 12-29-15
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	09-21-15 to 10-02-15 10-02-15 to 10-13-15 10-13-15 to 11-15-15 11-15-15 to 11-26-15
W70.90N² 70.7542, -50.9613	Perdlerfiup Silardleq	04-16-15 to 04-27-15 06-21-15 to 07-02-15 08-26-15 to 09-06-15 12-14-15 to 12-25-15
W71.65N 71.3100, -51.8327	Kangerdlugssup Rink	02-18-15 to 02-19-15 04-26-15 to 05-07-15 05-07-15 to 05-18-15 05-18-15 to 05-29-15 05-29-15 to 07-01-15 07-01-15 to 07-12-15 07-12-15 to 07-23-15 07-23-15 to 08-03-15 08-03-15 to 08-14-15 08-14-15 to 08-25-15 08-25-15 to 09-05-15 09-05-15 to 09-16-15 09-16-15 to 10-08-15 10-08-15 to 10-19-15 12-02-15 to 12-13-15
W72.00N 71.6540, -52.8014	Ingia Umiamako	05-02-15 to 05-24-15 05-24-15 to 06-15-15 06-15-15 to 07-07-15 07-07-15 to 07-29-15 07-29-15 to 08-20-15 08-20-15 to 09-11-15 09-11-15 to 10-03-15 10-03-15 to 10-25-15 10-25-15 to 11-16-15
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	02-03-15 to 02-14-15 05-13-15 to 05-24-15 05-24-15 to 06-15-15 06-15-15 to 06-26-15 06-26-15 to 07-07-15 07-07-15 to 07-18-15 07-18-15 to 08-09-15 08-09-15 to 08-20-15 08-20-15 to 08-31-15 08-31-15 to 09-11-15 11-16-15 to 12-19-15 12-19-15 to 12-30-15
W73.45N 73.1520, -55.6912	Kakivfat Giesecke Nutarmiut Tuvssaq	02-08-15 to 02-19-15 05-18-15 to 05-29-15 05-29-15 to 06-20-15 06-20-15 to 07-01-15 07-01-15 to 07-12-15 07-12-15 to 07-23-15 07-23-15 to 08-14-15 08-14-15 to 08-25-15 08-25-15 to 09-05-15 12-02-15 to 12-13-15
W73.75N 73.1520, -55.6912	Comell Sugarloaf Ussing	02-02-15 to 02-13-15 05-12-15 to 05-23-15 05-23-15 to 06-14-15 06-14-15 to 06-25-15 06-25-15 to 07-06-15 07-06-15 to 07-17-15 07-17-15 to 08-08-15 08-08-15 to 08-19-15 08-19-15 to 08-30-15 11-15-15 to 11-26-15
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	02-03-15 to 02-14-15 05-13-15 to 05-24-15 05-24-15 to 06-15-15 06-15-15 to 06-26-15 06-26-15 to 07-07-15 07-07-15 to 07-18-15 07-18-15 to 08-09-15 08-09-15 to 8-20-15 08-20-15 to 08-31-15
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	02-08-15 to 02-19-15 05-18-15 to 05-29-15 05-29-15 to 06-20-15 06-20-15 to 07-01-15 07-01-15 to 07-12-15 07-12-15 to 07-23-15 07-23-15 to 08-14-15 08-14-15 to 08-25-15 08-25-15 to 09-05-15
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	02-04-15 to 02-15-15 05-24-15 to 05-25-15 05-25-15 to 06-16-15 06-16-15 to 06-27-15 06-27-15 to 07-08-15 07-08-15 to 07-19-15 07-19-15 to 08-10-15 08-10-15 to 08-21-15 08-21-15 to 09-01-15 11-17-15 to 11-28-15
W75.85N 75.4736, -59.2722	South of Nansen Nansen Nordenskiold	02-09-15 to 02-20-15 05-19-15 to 05-30-15 05-30-15 to 06-21-15 06-21-15 to 07-02-15 07-02-15 to 07-13-15 07-13-15 to 07-24-15 07-24-15 to 08-15-15 08-15-15 to 08-26-15 08-26-15 to 09-06-15 11-11-15 to 11-22-15
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	02-03-15 to 02-14-15 05-13-15 to 05-24-15 05-24-15 to 06-15-15 06-15-15 to 06-26-15 06-26-15 to 07-07-15 07-07-15 to 07-18-15 07-18-15 to 08-09-15 08-09-15 to 08-20-15 08-20-15 to 08-31-15 11-16-15 to 11-27-15
W76.25N 75.9067, -61.2365	Balgoni Docker Fisher Igssuarssuit Leven	02-08-15 to 02-19-15 05-18-15 to 05-29-15 05-29-15 to 06-20-15 06-20-15 to 07-01-15 07-01-15 to 07-12-15 07-12-15 to 07-23-15 07-23-15 to 08-14-15 08-14-15 to 08-25-15 08-25-15 to 09-05-15
W76.35N 75.7416, -63.3988	Mohn Gade Meteor Yngvar Nielson	04-14-15 to 04-25-15 04-19-15 to 04-30-15 06-19-15 to 06-30-15 06-24-15 to 07-05-15 08-24-15 to 09-04-15 08-29-15 to 09-09-15 12-17-15 to 12-28-15 12-23-15 to 01-03-16
W76.40N 76.0579, -65.9643	Savigssuaq Helland Sidebriks	04-13-15 to 04-24-15 06-18-15 to 06-29-15 08-23-15 to 09-03-15 12-22-15 to 01-02-16
W76.45N 76.1084, -67.6907	Dedodes Harald Moltke	04-12-15 to 04-23-15 06-17-15 to 06-28-15 06-28-15 to 07-20-15 07-20-15 to 07-31-15 07-31-15 to 08-11-15 08-11-15 to 08-22-15 08-22-15 to 09-02-15 09-02-15 to 09-13-15 12-21-15 to 01-01-16
W77.55N 77.0728, -66.2296	Leidy Mane Heilprin Mellville Tracy	04-20-15 to 05-01-15 06-14-15 to 06-25-15 08-30-15 to 09-10-15 12-18-15 to 01-09-16
W79.75N 79.3702, -65.1597	Humboldt	04-19-15 to 04-30-15 06-24-15 to 07-05-15 08-29-15 to 09-09-15 12-17-15 to 12-28-15
W80.75N 79.9328, -61.5545	Petermann	04-14-15 to 04-25-15 06-19-15 to 06-30-15 09-04-15 to 09-15-15 12-23-15 to 01-03-16
W81.25N 80.9256, -51.3505	Ryder	04-18-15 to 04-29-15 06-23-15 to 07-04-15 08-28-15 to 09-08-15 12-16-15 to 12-27-15
W81.5N² 81.1505, -46.6109	Chow	09-05-15 to 09-16-15
S44.84W 61.0923, -45.3465	Kiagtut Qorqup	05-08-15 to 05-19-15 05-19-15 to 06-21-15 06-21-15 to 07-02-15 08-26-15 to 09-06-15 12-14-15 to 12-25-15
S45.43W 61.2196, -45.8994	Eqalorutsit Kangigdlit Sermia	04-11-15 to 04-22-15 06-16-15 to 06-27-15 08-21-15 to 09-01-15 12-20-15 to 12-31-15
S46.31W¹ 60.9223, -46.7905	Eqalorutsit Kangigdlit Sermia West	05-07-15 to 05-18-15 05-18-15 to 06-20-15 06-20-15 to 07-01-15 08-25-15 to 09-05-15 12-24-15 to 01-04-16

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2016
E61.10N 60.8004, -43.9589	Unnamed near Danells Danells Kanderdluluk Kap to Herlut to Trolle Kap to Njordenskjold	04-14-16 to 04-25-16 06-08-16 to 06-19-16 08-24-16 to 09-04-16 12-12-16 to 12-23-16
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	02-01-16 to 02-12-16 05-10-16 to 06-01-16 11-24-16 to 12-05-16
E62.10N 61.801, -43.2149	Puisortuq North Puisortuq South	04-13-16 to 04-24-16 06-07-16 to 06-18-16 08-23-16 to 09-03-16 12-22-16 to 01-02-17
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	02-02-16 to 02-13-16 05-11-16 to 05-22-16 05-22-16 to 06-13-16 06-13-16 to 06-24-16 06-24-16 to 07-05-16 07-05-16 to 07-16-16 07-16-16 to 08-07-16 08-07-16 to 08-18-16 08-18-16 to 08-29-16 11-14-16 to 11-25-16
E63.00N 62.7212, -43.5332	Heimdal	02-02-16 to 02-13-16 05-11-16 to 05-22-16 05-22-16 to 06-13-16 06-13-16 to 06-24-16 06-24-16 to 07-05-16 07-05-16 to 07-16-16 07-16-16 to 08-07-16 08-07-16 to 08-18-16 08-18-16 to 08-29-16 08-29-16 to 09-09-16 11-25-16 to 12-06-16
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	02-08-16 to 02-19-16 05-17-16 to 05-28-16 05-28-16 to 06-19-16 06-19-16 to 06-30-16 06-30-16 to 07-11-16 07-11-16 to 07-22-16 07-22-16 to 08-13-16 08-13-16 to 08-24-16 08-24-16 to 09-04-16 11-09-16 to 11-20-16
E63.85N 63.5620, -42.4419	Bernstorf	02-02-16 to 02-13-16 05-11-16 to 05-22-16 05-22-16 to 06-13-16 06-13-16 to 06-24-16 06-24-16 to 07-05-16 07-05-16 to 07-16-16 07-16-16 to 08-07-16 08-07-16 to 08-18-16 08-18-16 to 08-29-16 08-29-16 to 09-09-16 11-25-16 to 12-06-16
E64.35N 64.0768, -42.2688	Gyldenslove	02-07-16 to 02-18-16 05-16-16 to 05-27-16 05-27-16 to 06-18-16 06-18-16 to 06-29-16 06-29-16 to 07-10-16 07-10-16 to 07-21-16 07-21-16 to 08-12-16 08-12-16 to 08-23-16 08-23-16 to 09-03-16 12-22-16 to 01-02-17
E64.65N 64.3291, -41.7539	Fridtjof	01-01-16 to 01-12-16 01-12-16 to 01-23-16 04-09-16 to 04-20-16 06-03-16 to 06-14-16 08-30-16 to 09-10-16 12-29-16 to 01-09-17
E65.10N 64.7987, -41.8569	Koge Bugt	02-02-16 to 02-13-16 05-11-16 to 05-22-16 05-22-16 to 06-13-16 06-13-16 to 06-24-16 06-24-16 to 07-05-16 07-05-16 to 07-16-16 07-16-16 to 08-07-16 08-07-16 to 08-18-16 08-18-16 to 08-29-16 11-14-16 to 11-25-16
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	02-08-16 to 02-19-16 05-17-16 to 05-28-16 05-28-16 to 06-19-16 06-19-16 to 06-30-16 06-30-16 to 07-11-16 07-11-16 to 07-22-16 07-22-16 to 08-13-16 08-13-16 to 08-24-16 08-24-16 to 09-04-16 11-09-16 to 11-20-16
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	01-11-16 to 01-22-16 01-22-16 to 02-02-16 02-02-16 to 02-13-16 02-13-16 to 02-24-16 02-24-16 to 03-06-16 03-06-16 to 03-17-16 03-17-16 to 03-28-16 03-28-16 to 04-08-16 04-08-16 to 04-19-16 04-19-16 to 04-30-16 04-30-16 to 05-11-16 05-11-16 to 05-22-16 05-22-16 to 06-02-16 06-02-16 to 06-13-16 06-13-16 to 06-24-16 06-24-16 to 07-05-16 07-05-16 to 07-16-16 07-16-16 to 07-27-16 07-27-16 to 08-07-16 08-07-16 to 08-18-16 08-18-16 to 08-29-16 09-20-16 to 10-01-16 10-01-16 to 10-12-16 10-12-16 to 10-23-16 12-17-16 to 12-28-16 12-28-16 to 01-08-17
E66.60N¹ 66.3305, -37.4428	Midgard Midgard Nord	02-03-16 to 02-14-16 05-12-16 to 05-23-16 05-23-16 to 06-14-16 06-14-16 to 06-25-16 06-25-16 to 07-06-16 07-06-16 to 07-17-16 07-17-16 to 08-08-16 08-08-16 to 08-19-16 08-19-16 to 08-30-16 08-30-16 to 09-10-16 11-15-16 to 11-26-16
E66.90N 66.5045, -36.2923	kruuse steenstrup to east tasiliaq	01-02-16 to 01-13-16 04-10-16 to 04-21-16 06-26-16 to 07-07-16 09-11-16 to 09-22-16 12-19-16 to 12-30-16
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	02-04-16 to 02-15-16 05-13-16 to 05-24-16 06-04-16 to 06-15-16 07-18-16 to 07-29-16 07-29-16 to 08-20-16 08-20-16 to 08-31-16 08-31-16 to 10-03-16 10-03-16 to 10-14-16 10-14-16 to 11-16-16 11-16-16 to 11-27-16
E68.50N² 68.3044, -31.1040	Courtauld Frederiksborg Christian IV Sorgenfri	04-11-16 to 04-22-16 06-05-16 to 06-16-16 08-21-16 to 09-01-16 12-20-16 to 12-31-16
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	01-02-16 to 02-04-16 02-04-16 to 02-15-16 02-15-16 to 02-26-16 02-26-16 to 03-08-16 03-08-16 to 03-19-16 03-19-16 to 03-30-16 03-30-16 to 05-02-16 06-04-16 to 06-15-16 06-15-16 to 06-26-16 06-26-16 to 07-07-16 07-07-16 to 07-18-16 07-18-16 to 07-29-16 07-29-16 to 08-09-16 08-09-16 to 08-20-16 08-20-16 to 08-31-16 08-31-16 to 09-11-16 09-11-16 to 09-22-16 09-22-16 to 10-14-16 10-14-16 to 10-25-16 10-25-16 to 11-05-16 11-05-16 to 12-08-16 12-08-16 to 12-30-16 12-30-16 to 01-21-17
E79.40N 79.190, -24.0779	Fjorden	04-15-16 to 05-07-16 05-07-16 to 06-09-16 06-09-16 to 06-20-16 12-13-16 to 12-24-16
E81.35N 81.1300, -30.0074	Hagan	04-17-16 to 04-28-16 06-11-16 to 06-22-16 08-27-16 to 09-07-16 12-15-16 to 12-26-16
E81.45N 81.196, -34.6273	Acad	0409-16 to 04-20-16 06-11-16 to 06-22-16 08-30-16 to 09-10-16 12-29-16 to 01-09-17
W61.70N 61.4746, -48.4912	Sermiligarssuk	04-12-16 to 04-23-16 06-06-16 to 06-17-16 08-22-16 to 09-02-16 12-10-16 to 12-21-16
W62.10N 61.8077, -49.0172	Nigerdlikasik Avangnardleq Ukassorssuaq	01-31-16 to 02-11-16 04-17-16 to 04-28-16 06-11-16 to 06-22-16 08-27-16 to 09-07-16
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	02-11-16 to 02-22-16 05-20-16 to 05-31-16 05-31-16 to 06-22-16 06-22-16 to 07-03-16 07-03-16 to 07-14-16 07-14-16 to 07-25-16 07-25-16 to 08-16-16 08-16-16 to 08-27-16 08-27-16 to 09-07-16 11-12-16 to 11-23-16
W64.75N² 64.4610, -50.1732	Ujaragssuit Narssap	04-12-16 to 04-23-16 06-06-16 to 06-17-16 08-22-16 to 09-02-16 12-10-16 to 12-21-16
W68.60N 68.3079, -50.6854	Saraqardliup Alangordlek Nordenskiold	06-21-16 to 07-02-16 07-13-16 to 07-24-16 07-02-16 to 07-13-16 05-19-16 to 05-30-16 05-30-16 to 06-21-16 11-11-16 to 11-22-16 02-10-16 to 02-21-16 09-06-16 to 06-17-16
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	01-03-16 to 01-14-16 01-14-16 to 01-25-16 01-25-16 to 02-05-16 02-05-16 to 02-16-16 02-06-16 to 02-11-16 02-06-16 to 02-11-16 02-16-16 to 02-27-16 02-17-16 to 02-28-16 02-27-16 to 03-09-16 02-28-16 to 03-10-16 03-09-16 to 03-20-16 03-10-16 to 03-21-16 03-20-16 to 03-31-16 03-21-16 to 04-01-16 03-31-15 to 04-11-16 04-01-16 to 04-12-16 04-03-16 to 04-14-16 04-11-16 to 04-22-16 04-12-16 to 04-23-16 04-22-16 to 05-03-16 04-23-16 to 05-04-16 05-03-16 to 05-14-16 05-04-16 to 05-15-16 05-14-16 to 05-25-16 05-15-16 to 05-26-16 05-15-16 to 05-26-16 05-25-16 to 06-05-16 05-26-16 to 06-06-16 05-26-16 to 06-17-16 06-05-16 to 06-16-16 06-06-16 to 06-17-16 06-16-16 to 06-27-16 06-17-16 to 07-09-16 06-17-16 to 07-09-16 06-27-16 to 07-08-16 07-04-16 to 07-15-16 07-08-16 to 07-19-16 07-15-16 to 07-26-16 07-19-16 to 07-30-16 07-21-16 to 08-01-16 07-26-16 to 08-06-16 07-30-16 to 09-01-16 08-01-16 to 08-12-16 08-06-16 to 08-17-16 08-12-16 to 08-23-16 08-17-16 to 08-28-16 08-23-16 to 09-03-16 08-28-16 to 09-08-16 09-01-16 to 09-12-16 09-02-16 to 09-13-16 09-03-16 to 09-14-16 09-08-16 to 09-19-16 09-12-16 to 09-23-16 09-13-16 to 09-24-16 09-23-16 to 10-04-16 09-24-16 to 10-16-16 10-04-16 to 10-15-16 10-16-16 to 11-07-16 10-22-16 to 11-02-16 10-26-16 to 11-06-16 11-02-16 to 11-13-16 11-06-16 to 11-17-16 11-07-16 to 11-18-16 11-17-16 to 11-28-16 11-18-16 to 11-29-16 11-18-16 to 11-29-16 11-19-16 to 11-30-16 11-28-16 to 12-09-16 11-29-16 to 12-21-16 11-30-16 to 12-11-16 12-09-16 to 12-20-16 12-11-16 to 12-22-16 12-20-16 to 12-31-16 12-21-16 to 01-01-17 12-22-16 to 01-02-17 12-27-16 to 01-07-17 12-31-16 to 01-11-17
W69.95N 69.6356, -50.6122	Kangilerngata Kujatdleq Torsukatat	04-17-16 to 04-28-16 12-15-16 to 12-26-16
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	02-11-16 to 02-22-16 05-20-16 to 05-31-16 05-31-16 to 06-22-16 09-18-16 to 09-29-16 11-12-16 to 11-23-16
W70.90N² 70.7542, -50.9613	Perdlerfiup Silardleq	04-13-16 to 04-24-16 06-07-16 to 06-18-16 08-23-16 to 09-03-16 12-11-16 to 12-22-16
W71.65N 71.3100, -51.8327	Kangerdlugssup Rink	05-15-16 to 05-26-16 05-26-16 to 06-17-16 06-17-16 to 06-28-16 06-28-16 to 07-09-16 07-09-16 to 07-20-16 07-20-16 to 08-11-16 08-11-16 to 08-22-16 08-22-16 to 09-02-16 09-02-16 to 09-13-16 11-18-16 to 11-29-16
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	02-01-16 to 02-12-16 05-10-16 to 05-21-16 05-21-16 to 06-12-16 06-12-16 to 06-23-16 06-23-16 to 07-04-16 07-04-16 to 07-15-16 07-15-16 to 08-06-16 08-06-16 to 08-17-16 08-17-16 to 08-28-16 08-28-16 to 09-08-16 11-13-16 to 12-05-16
W73.45N 73.1520, -55.6912	Kakivfat Giesecke Nutarmiut Tuvssaq	02-06-16 to 02-17-16 05-15-16 to 05-26-16 05-26-16 to 06-28-16 06-28-16 to 07-09-16 07-09-16 to 07-20-16 07-20-16 to 07-31-16 07-31-16 to 08-11-16 08-11-16 to 08-22-16 08-22-16 to 09-02-16 09-20-16 to 10-01-16
W73.75N 73.1520, -55.6912	Comell Sugarloaf Ussing	02-11-16 to 02-22-16 05-20-16 to 05-31-16 05-31-16 to 06-22-16 06-22-16 to 07-03-16 07-03-16 to 07-14-16 07-14-16 to 07-25-16 07-25-16 to 08-16-16 08-16-16 to 08-27-16 08-27-16 to 09-07-16 12-04-16 to 01-06-17
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	01-21-16 to 02-01-16 02-01-16 to 02-12-16 05-10-16 to 05-21-16 05-21-16 to 06-12-16 06-12-16 to 06-23-16 06-23-16 to 07-04-16 07-04-16 to 07-15-16 07-15-16 to 08-06-16 08-06-16 to 8-17-16 08-17-16 to 08-28-16 08-28-16 to 09-08-16 11-13-16 to 12-05-16
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	01-04-16 to 01-15-16 01-15-16 to 02-06-16 02-06-16 to 02-17-16 05-15-16 to 05-26-16 05-26-16 to 06-17-16 06-17-16 to 06-28-16 06-28-16 to 07-09-16 07-09-16 to 07-20-16 07-20-16 to 08-11-16 08-11-16 to 08-22-16 08-22-16 to 09-02-16 11-18-16 to 11-29-16
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	02-02-16 to 02-13-16 05-11-16 to 05-22-16 05-22-16 to 06-13-16 06-13-16 to 06-24-16 06-24-16 to 07-05-16 07-05-16 to 07-16-16 07-16-16 to 08-07-16 08-07-16 to 08-18-16 08-18-16 to 08-29-16 11-14-16 to 11-25-16
W75.85N 75.4736, -59.2722	South of Nansen Nansen Nordenskiold	02-07-16 to 02-18-16 05-16-16 to 05-27-16 05-27-16 to 06-18-16 06-18-16 to 06-29-16 06-29-16 to 07-10-16 07-10-16 to 07-21-16 07-21-16 to 08-12-16 08-12-16 to 08-23-16 08-23-16 to 09-03-16 11-19-16 to 11-30-16
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	02-01-16 to 02-12-16 05-21-16 to 06-12-16 06-12-16 to 06-23-16 06-23-16 to 07-04-16 07-04-16 to 07-15-16 07-15-16 to 08-06-16 08-06-16 to 08-20-16 08-06-16 to 08-17-16 08-17-16 to 08-28-16 08-28-16 to 09-08-16 11-13-16 to 11-24-16
W76.25N 75.9067, -61.2365	Balgoni Docker Fisher Igssuarssuit Leven	02-06-16 to 02-17-16 05-15-16 to 05-26-16 05-26-16 to 06-17-16 06-17-16 to 06-28-16 06-28-16 to 07-09-16 07-09-16 to 07-20-16 07-20-16 to 08-11-16 08-11-16 to 08-22-16 08-22-16 to 09-02-16 11-18-16 to 11-29-16
W76.35N 75.7416, -63.3988	Mohn Gade Meteor Yngvar Nielson	04-11-16 to 04-22-16 04-16-16 to 04-27-16 06-05-16 to 06-16-16 06-10-16 to 06-21-16 08-21-16 to 09-01-16 08-26-16 to 09-06-16 12-09-16 to 12-20-16 12-14-16 to 01-05-17
W76.40N 76.0579, -65.9643	Savigssuaq Helland Sidebriks	04-10-16 to 04-21-16 08-20-16 to 08-31-16
W76.45N 76.1084, -67.6907	Dedodes Harald Moltke	04-09-16 to 04-20-16 06-03-16 to 06-14-16 06-14-16 to 07-06-16 07-06-16 to 07-17-16 08-30-16 to 09-10-16
W77.55N 77.0728, -66.2296	Leidy Mane Heilprin Mellville Tracy	04-17-16 to 04-28-16 06-11-16 to 06-22-16 08-27-16 to 09-07-16 12-15-16 to 12-26-16
W79.75N 79.3702, -65.1597	Humboldt	04-16-16 to 04-27-16 06-10-16 to 06-21-16 08-26-16 to 09-06-16 12-14-16 to 12-25-16
W80.75N 79.9328, -61.5545	Petermann	04-11-16 to 04-22-16 06-05-16 to 06-16-16 09-01-16 to 09-12-16 12-09-16 to 12-20-16
W81.25N 80.9256, -51.3505	Ryder	04-15-16 to 04-26-16 06-09-16 to 06-20-16 08-25-16 to 09-05-16 12-13-16 to 12-24-16
W81.5N² 81.1505, -46.6109	Chow	02-02-16 to 02-17-16 04-12-16 to 04-23-16 06-06-16 to 06-17-16 08-22-16 to 09-02-16 12-10-16 to 12-21-16
S44.84W 61.0923, -45.3465	Kiagtut Qorqup	04-13-16 to 04-24-16 06-07-16 to 06-18-16 08-23-16 to 09-03-16 12-11-16 to 12-22-16
S45.43W 61.2196, -45.8994	Eqalorutsit Kangigdlit Sermia	04-19-16 to 04-30-16 06-02-16 to 06-13-16 08-29-16 to 09-20-16
S46.31W¹ 60.9223, -46.7905	Eqalorutsit Kangigdlit Sermia West	04-12-16 to 04-23-16 06-06-16 to 06-17-16 08-22-16 to 09-02-16 12-10-16 to 01-01-17

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2017
E61.10N 60.8004, -43.9589	Unnamed near Danells Danells Kanderdluluk Kap to Herlut to Trolle Kap to Njordenskjold	06-28-17 to 07-09-17 05-04-17 to 05-15-17 09-02-17 to 09-13-17
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	08-15-17 to 08-26-17 08-26-17 to 09-06-17 12-25-17 to 01-05-18 02-09-17 to 02-20-17 07-02-17 to 07-13-17 07-13-17 to 07-24-17 07-24-17 to 08-15-17 06-10-17 to 06-21-17 06-21-17 to 07-02-17 05-30-17 to 06-10-17
E62.10N 61.801, -43.2149	Puisortuq North Puisortuq South	06-27-17 to 07-08-17 05-03-17 to 05-25-17 05-25-17 to 06-27-17 09-01-17 to 09-12-17
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	08-05-17 to 08-16-17 08-16-17 to 08-27-17 08-27-17 to 09-07-17 12-26-17 to 01-06-18 02-10-17 to 02-21-17 07-03-17 to 07-14-17 07-14-17 to 08-05-17 06-11-17 to 06-22-17 06-22-17 to 07-03-17 05-20-17 to 05-31-17 05-31-17 to 06-11-17
E63.00N 62.7212, -43.5332	Heimdal	08-16-17 to 08-27-17 08-27-17 to 09-07-17 12-26-17 to 01-06-18 02-10-17 to 02-21-17 07-03-17 to 07-14-17 07-14-17 to 07-25-17 07-25-17 to 08-16-17 06-11-17 to 06-22-17 06-22-17 to 07-03-17 05-31-17 to 06-11-17
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	08-11-17 to 08-22-17 08-22-17 to 09-02-17 02-16-17 to 02-27-17 07-09-17 to 07-20-17 07-20-17 to 08-11-17 06-06-17 to 06-17-17 06-17-17 to 06-28-17 06-28-17 to 07-09-17 05-26-17 to 06-06-17
E63.85N 63.5620, -42.4419	Bernstorf	08-05-17 to 08-16-17 08-16-17 to 08-27-17 08-27-17 to 09-07-17 12-26-17 to 01-06-18 07-03-17 to 07-14-17 07-14-17 to 08-05-17 06-11-17 to 06-22-17 06-22-17 to 07-03-17 05-20-17 to 05-31-17 05-31-17 to 06-11-17
E64.35N 64.0768, -42.2688	Gyldenslove	08-10-17 to 08-21-17 08-21-17 to 09-01-17 12-31-17 to 01-11-18 07-08-17 to 07-19-17 07-19-17 to 08-10-17 06-05-17 to 06-16-17 06-16-17 to 06-27-17 06-27-17 to 07-08-17 05-25-17 to 06-05-17
E64.65N 64.3291, -41.7539	Fridtjof	04-29-17 to 05-10-17 06-23-17 to 07-04-17 09-08-17 to 09-30-17
E65.10N 64.7987, -41.8569	Koge Bugt	08-05-17 to 08-16-17 08-16-17 to 08-27-17 08-27-17 to 09-07-17 12-26-17 to 01-06-18 02-10-17 to 02-21-17 07-03-17 to 07-14-17 07-14-17 to 08-05-17 06-11-17 to 06-22-17 06-22-17 to 07-03-17 05-20-17 to 05-31-17 05-31-17 to 06-11-17
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	08-11-17 to 08-22-17 08-22-17 to 09-02-17 02-16-17 to 02-27-17 07-09-17 to 07-20-17 07-20-17 to 08-11-17 06-06-17 to 06-17-17 06-17-17 to 06-28-17 06-28-17 to 07-09-17 05-26-17 to 06-06-17
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	04-17-17 to 04-28-17 08-05-17 to 08-16-17 08-16-17 to 08-27-17 08-27-17 to 09-07-17 02-10-17 to 02-21-17 02-21-17 to 03-04-17 01-08-17 to 01-19-17 01-19-17 to 01-30-17 01-30-17 to 02-10-17 07-03-17 to 07-14-17 07-14-17 to 07-25-17 07-25-17 to 08-05-17 06-11-17 to 06-22-17 06-22-17 to 07-03-17
E66.60N¹ 66.3305, -37.4428	Midgard Midgard Nord	08-06-17 to 08-17-17 08-17-17 to 08-28-17 08-28-17 to 09-08-17 12-27-17 to 01-07-18 02-11-17 to 02-22-17 07-04-17 to 07-15-17 07-15-17 to 08-06-17 06-01-17 to 06-12-17 06-12-17 to 06-23-17 06-23-17 to 07-04-17 05-21-17 to 06-01-17
E66.90N 66.5045, -36.2923	kruuse steenstrup to east tasiliaq	04-30-17 to 05-11-17 07-05-17 to 07-16-17 10-01-17 to 10-12-17
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	08-07-17 to 08-18-17 08-18-17 to 09-09-17 12-28-17 to 01-08-18 02-12-17 to 02-23-17 07-27-17 to 08-07-17 06-02-17 to 06-13-17 06-13-17 to 06-24-17 06-24-17 to 07-27-17 05-22-17 to 06-02-17
E68.50N² 68.3044, -31.1040	Courtauld Frederiksborg Christian IV Sorgenfri	08-30-17 to 09-10-17 06-25-17 to 07-06-17 05-01-17 to 05-12-17
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	04-30-17 to 05-11-17 08-07-17 to 08-18-17 08-18-17 to 08-29-17 08-29-17 to 09-09-17 02-01-17 to 02-12-17 01-21-17 to 02-01-17 07-05-17 to 07-16-17 07-16-17 to 07-27-17 07-27-17 to 08-07-17 06-02-17 to 06-13-17 06-13-17 to 06-24-17 06-24-17 to 07-05-17 05-11-17 to 05-22-17 05-22-17 to 06-02-17 11-14-17 to 11-25-17 10-01-17 to 10-12-17 10-12-17 to 10-23-17 10-23-17 to 11-14-17 09-09-17 to 10-01-17
E79.40N 79.190, -24.0779	Fjorden	06-29-17 to 07-10-17 05-16-17 to 05-27-17 05-27-17 to 06-29-17 09-03-17 to 09-14-17
E81.35N 81.1300, -30.0074	Hagan	08-03-17 to 09-05-17 07-01-17 to 07-23-17 07-23-17 to 08-03-17 05-07-17 to 05-18-17 09-05-17 to 09-16-17
E81.45N 81.196, -34.6273	Acad	06-23-17 to 07-04-17 05-10-17 to 05-21-17 05-21-17 to 06-23-17 09-08-17 to 09-30-17
W61.70N 61.4746, -48.4912	Sermiligarssuk	08-31-17 to 09-11-17 06-26-17 to 07-07-17 05-02-17 to 05-13-17
W62.10N 61.8077, -49.0172	Nigerdlikasik Avangnardleq Ukassorssuaq	01-17-17 to 01-28-17 07-01-17 to 07-12-17 05-07-17 to 05-29-17 05-29-17 to 07-01-17 09-05-17 to 09-16-17
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	08-03-17 to 08-14-17 08-14-17 to 08-25-17 08-25-17 to 09-05-17 12-24-17 to 01-04-18 02-08-17 to 02-19-17 07-01-17 to 07-23-17 07-23-17 to 08-03-17 06-09-17 to 06-20-17 06-20-17 to 07-01-17
W64.75N² 64.4610, -50.1732	Ujaragssuit Narssap	08-31-17 to 09-11-17 06-26-17 to 07-07-17 05-02-17 to 05-13-17
W68.60N 68.3079, -50.6854	Saraqardliup Alangordlek Nordenskiold	05-28-17 to 06-08-17 06-08-17 to 06-19-17 07-22-17 to 08-13-17 06-30-17 to 07-11-17 06-19-17 to 06-30-17 08-24-17 to 09-04-17 02-07-17 to 02-18-17 08-13-17 to 08-24-17
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	04-09-17 to 04-20-17 04-10-17 to 04-21-17 04-20-17 to 05-01-17 04-21-17 to 05-02-17 08-08-17 to 08-19-17 08-09-17 to 08-20-17 08-09-17 to 08-20-17 08-19-17 to 08-30-17 08-20-17 to 08-31-17 08-20-17 to 08-31-17 08-30-17 to 09-10-17 08-31-17 to 09-11-17 08-31-17 to 09-11-17 12-07-17 to 12-18-17 12-08-17 to 12-19-17 12-18-17 to 12-29-17 12-19-17 to 12-30-17 12-29-17 to 01-09-18 12-30-17 to 01-10-18 02-02-17 to 02-13-17 02-13-17 to 02-24-17 02-14-17 to 02-25-17 02-24-17 to 03-07-17 01-01-17 to 01-12-17 01-02-17 to 01-13-17 01-07-17 to 01-18-17 01-11-17 to 01-22-17 01-12-17 to 01-23-17 01-18-17 to 01-29-17 01-22-17 to 02-02-17 01-23-17 to 02-03-17 07-06-17 to 07-17-17 07-07-17 to 07-18-17 07-07-17 to 07-18-17 07-17-17 to 07-28-17 07-18-17 to 08-09-17 07-18-17 to 07-29-17 07-28-17 to 08-08-17 07-29-17 to 08-09-17 06-03-17 to 06-14-17 06-04-17 to 06-15-17 06-04-17 to 06-15-17 06-14-17 to 06-25-17 06-15-17 to 06-26-17 06-15-17 to 06-26-17 06-25-17 to 07-06-17 06-26-17 to 07-07-17 06-26-17 to 07-07-17 03-07-17 to 03-18-17 03-18-17 to 03-29-17 03-19-17 to 04-10-17 03-29-17 to 04-09-17 05-01-17 to 05-12-17 05-02-17 to 05-13-17 05-12-17 to 05-23-17 05-13-17 to 05-24-17 05-23-17 to 06-03-17 05-24-17 to 06-04-17 05-24-17 to 06-04-17 11-04-17 to 11-15-17 11-05-17 to 11-16-17 11-15-17 to 11-26-17 11-16-17 to 11-27-17 11-26-17 to 12-07-17 11-27-17 to 12-08-17 10-02-17 to 10-13-17 10-13-17 to 10-24-17 10-14-17 to 10-25-17 10-24-17 to 11-04-17 10-25-17 to 11-05-17 09-10-17 to 10-02-17
W69.95N 69.6356, -50.6122	Kangilerngata Kujatdleq Torsukatat	05-07-17 to 05-18-17 09-16-17 to 09-27-17
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	08-14-17 to 08-25-17 08-25-17 to 09-05-17 12-24-17 to 01-04-18 02-08-17 to 02-19-17 07-01-17 to 07-23-17 07-23-17 to 08-14-17 06-09-17 to 06-20-17 06-20-17 to 07-01-17 05-29-17 to 06-09-17
W70.90N² 70.7542, -50.9613	Perdlerfiup Silardleq	06-27-17 to 07-08-17 05-03-17 to 05-14-17 09-01-17 to 09-12-17
W71.65N 71.3100, -51.8327	Kangerdlugssup Rink	08-09-17 to 08-20-17 08-20-17 to 08-31-17 08-31-17 to 09-11-17 12-30-17 to 01-10-18 07-07-17 to 07-18-17 07-18-17 to 08-09-17 06-04-17 to 06-15-17 06-15-17 to 06-26-17 06-26-17 to 07-07-17 03-19-17 to 03-30-17 05-24-17 to 06-04-17
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	08-15-17 to 08-26-17 08-26-17 to 09-06-17 12-25-17 to 01-05-18 07-02-17 to 07-13-17 07-13-17 to 07-24-17 07-24-17 to 08-15-17 06-10-17 to 06-21-17 06-21-17 to 07-02-17 05-30-17 to 06-10-17
W73.45N 73.1520, -55.6912	Kakivfat Giesecke Nutarmiut Tuvssaq	08-09-17 to 08-20-17 08-20-17 to 08-31-17 08-31-17 to 09-11-17 12-30-17 to 01-10-18 02-25-17 to 03-19-17 07-07-17 to 07-18-17 07-18-17 to 08-09-17 06-04-17 to 06-15-17 06-15-17 to 06-26-17 06-26-17 to 07-07-17 05-24-17 to 06-04-17
W73.75N 73.1520, -55.6912	Comell Sugarloaf Ussing	08-14-17 to 08-25-17 08-25-17 to 09-05-17 12-24-17 to 01-04-18 02-19-17 to 03-02-17 01-06-17 to 01-17-17 01-17-17 to 02-19-17 07-01-17 to 07-12-17 07-12-17 to 07-23-17 07-23-17 to 08-14-17 06-09-17 to 06-20-17 06-20-17 to 07-01-17 05-29-17 to 06-09-17
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	08-15-17 to 08-26-17 08-26-17 to 09-06-17 12-25-17 to 01-05-18 07-02-17 to 07-13-17 07-13-17 to 07-24-17 07-24-17 to 08-15-17 06-10-17 to 06-21-17 06-21-17 to 07-02-17 05-30-17 to 06-10-17
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	08-09-17 to 08-20-17 08-20-17 to 08-31-17 08-31-17 to 09-11-17 12-30-17 to 01-10-18 07-07-17 to 07-18-17 07-18-17 to 08-09-17 06-04-17 to 06-15-17 06-15-17 to 06-26-17 06-26-17 to 07-07-17 05-24-17 to 06-04-17
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	08-05-17 to 08-16-17 08-16-17 to 08-27-17 08-27-17 to 09-07-17 12-26-17 to 01-06-18 02-10-17 to 02-21-17 07-03-17 to 07-14-17 07-14-17 to 08-05-17 06-11-17 to 06-22-17 06-22-17 to 07-03-17 05-20-17 to 05-31-17 05-31-17 to 06-11-17
W75.85N 75.4736, -59.2722	South of Nansen Nansen Nordenskiold	08-10-17 to 08-21-17 08-21-17 to 09-01-17 12-31-17 to 01-11-18 02-15-17 to 02-26-17 07-08-17 to 07-19-17 07-19-17 to 08-10-17 06-05-17 to 06-16-17 06-16-17 to 06-27-17 06-27-17 to 07-08-17 05-25-17 to 06-05-17
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	08-15-17 to 08-26-17 08-26-17 to 09-06-17 12-25-17 to 01-05-18 02-09-17 to 02-20-17 07-02-17 to 07-13-17 07-13-17 to 07-24-17 07-24-17 to 08-15-17 06-10-17 to 06-21-17 06-21-17 to 07-02-17 05-30-17 to 06-10-17
W76.25N 75.9067, -61.2365	Balgoni Docker Fisher Igssuarssuit Leven	08-09-17 to 08-20-17 08-20-17 to 08-31-17 08-31-17 to 09-11-17 12-30-17 to 01-10-18 07-07-17 to 07-18-17 07-18-17 to 08-09-17 06-04-17 to 06-15-17 06-15-17 to 06-26-17 06-26-17 to 07-07-17 05-24-17 to 06-04-17
W76.35N 75.7416, -63.3988	Mohn Gade Meteor Yngvar Nielson	08-30-17 to 09-10-17 06-25-17 to 07-06-17 06-30-17 to 07-11-17 05-01-17 to 05-12-17 05-06-17 to 05-17-17 09-04-17 to 09-15-17
W76.40N 76.0579, -65.9643	Savigssuaq Helland Sidebriks	04-30-17 to 05-11-17 06-24-17 to 07-05-17 09-09-17 to 10-01-17 04-29-17 to 05-10-17 06-23-17 to 07-04-17
W76.45N 76.1084, -67.6907	Dedodes Harald Moltke	04-29-17 to 05-10-17 06-23-17 to 07-04-17
W77.55N 77.0728, -66.2296	Leidy Mane Heilprin Mellville Tracy	06-20-17 to 07-01-17 05-07-17 to 05-18-17 05-18-17 to 06-20-17 09-05-17 to 09-16-17
W79.75N 79.3702, -65.1597	Humboldt	06-30-17 to 07-11-17 05-06-17 to 05-17-17 09-04-17 to 09-15-17
W80.75N 79.9328, -61.5545	Petermann	08-30-17 to 09-10-17 06-25-17 to 07-06-17 05-01-17 to 05-12-17
W81.25N 80.9256, -51.3505	Ryder	06-29-17 to 07-10-17 05-05-17 to 05-16-17 09-03-17 to 09-14-17
W81.5N² 81.1505, -46.6109	Chow	08-31-17 to 09-11-17 06-26-17 to 07-07-17 05-02-17 to 05-13-17
S44.84W 61.0923, -45.3465	Kiagtut Qorqup	06-27-17 to 07-08-17 05-03-17 to 05-14-17 09-01-17 to 09-12-17
S45.43W 61.2196, -45.8994	Eqalorutsit Kangigdlit Sermia	06-22-17 to 07-03-17 05-09-17 to 05-20-17 05-20-17 to 06-22-17 09-07-17 to 09-29-17
S46.31W¹ 60.9223, -46.7905	Eqalorutsit Kangigdlit Sermia West	08-31-17 to 09-11-17 06-26-17 to 07-07-17 05-02-17 to 05-24-17 05-24-17 to 06-26-17

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2018
E61.70N 61.3903, -43.7671	Anoritup Kangerdlua Nappassorssuaq	06-30-2018 to 08-02-2018 05-06-2018 to 05-17-2018 06-08-2018 to 06-30-2018 08-02-2018 to 08-13-2018 05-28-2018 to 06-08-2018 08-13-2018 to 09-15-2018 05-17-2018 to 05-28-2018
E62.10N 61.801, -43.2149	Puisortuq North Puisortuq South	12-29-2018 to 01-09-2019
E62.55N 62.2422, -43.6371	Mogens Tingmjarmiut	04-26-2018 to 05-07-2018 05-29-2018 to 06-09-2018 08-14-2018 to 09-05-2018 05-07-2018 to 05-29-2018 06-09-2018 to 07-01-2018 09-05-2018 to 09-16-2018 07-01-2018 to 07-12-2018 07-12-2018 to 08-03-2018 08-03-2018 to 08-14-2018 12-24-2018 to 01-04-2019
E63.00N 62.7212, -43.5332	Heimdal	07-01-2018 to 07-23-2018 08-25-2018 to 09-05-2018 07-23-2018 to 08-03-2018 08-03-2018 to 08-25-2018 06-09-2018 to 08-20-2018 08-20-2018 to 07-01-2018 05-07-2018 to 06-09-2018 04-26-2018 to 06-09-2018 12-24-2018 to 01-04-2019
E63.35N 63.0911, -42.5656	Thrym Sehested Skinefaxe	05-24-2018 to 06-04-2018 04-21-2018 to 05-02-2018 08-31-2018 to 09-11-2018 06-04-2018 to 06-26-2018 05-02-2018 to 05-24-2018 07-07-2018 to 07-29-2018 01-01-2018 to 01-12-2018 07-29-2018 to 08-29-2018 06-26-2018 to 07-07-2018 08-09-2018 to 08-31-2018 12-30-2018 to 01-10-2019
E63.85N 63.5620, -42.4419	Bernstorf	07-01-2018 to 07-23-2018 08-03-2018 to 08-25-2018 06-09-2018 to 09-20-2018 05-07-2018 to 06-09-2018 06-20-2018 to 07-01-2018 04-26-2018 to 05-07-2018 07-23-2018 to 05-07-2018 07-23-2018 to 08-23-2018 08-25-2018 to 09-05-2018 12-24-2018 to 01-04-2019
E64.35N 64.0768, -42.2688	Gyldenslove	05-01-2018 to 05-23-2018 05-23-2018 to 06-03-2018 07-28-2018 to 08-08-2018 06-25-2018 to 07-06-2018 07-06-2018 to 07-28-2018 08-30-2018 to 09-10-2018 08-08-2018 to 08-30-2018 04-20-2018 to 05-01-2018 06-03-2018 to 06-25-2018 12-29-2018 to 01-09-2019
E64.65N 64.3291, -41.7539	Fridtjof	05-01-2018 to 05-23-2018 05-23-2018 to 06-03-2018 07-28-2018 to 08-08-2018 06-25-2018 to 07-06-2018 07-06-2018 to 07-28-2018 08-30-2018 to 09-10-2018 08-08-2018 to 08-30-2018 04-20-2018 to 05-01-2018 06-03-2018 to 06-25-2018 12-29-2018 to 01-09-2019 12-25-2018 to 01-05-2019
E65.10N 64.7987, -41.8569	Koge Bugt	08-14-2018 to 08-25-2018 08-25-2018 to 09-05-2018 04-26-2018 to 05-07-2018 05-07-2018 to 05-29-2018 07-01-2018 to 07-12-2018 08-03-2018 to 08-14-2018 06-09-2018 to 07-01-2018 07-12-2018 to 08-03-2018 12-24-2018 to 01-04-2019
E65.55N 65.2242, -40.5156	Ikertivaq Pamiatig	07-18-2018 to 07-29-2018 05-13-2018 to 05-24-2018 05-02-2018 to 05-13-2018 08-20-2018 to 08-31-2018 04-21-2018 to 05-02-2018 06-04-2018 to 06-15-2018 05-24-2018 to 06-04-2018 06-15-2018 to 06-26-2018 01-01-2018 to 01-12-2018 12-30-2018 to 01-10-2019
E66.50N¹ 66.1973, -39.1116	Fenris Helheim	08-25-2018 to 09-05-2018 08-14-2018 to 08-25-2018 09-05-2018 to 09-16-2018 03-24-2018 to 04-04-2018
E66.60N¹ 66.3305, -37.4428	Midgard Midgard Nord	08-04-2018 to 08-15-2018 06-10-2018 to 07-02-2018 04-27-2018 to 05-08-2018 05-30-2018 to 06-10-2018 08-15-2018 to 09-06-2018 07-13-2018 to 08-04-2018 05-08-2018 to 05-30-2018 09-60-2018 to 09-17-2018 07-02-2018 to 07-13-2018 12-25-2018 to 01-05-2019
E67.55N 67.2762, -34.9643	Nordre Parallel Gletscher Nordre	04-28-2018 to 05-09-2018 07-14-2018 to 08-05-2018 08-16-2018 to 09-07-2018 05-09-2018 to 05-31-2018 07-03-2018 to 07-14-2018 08-05-2018 to 08-16-2018 05-31-2018 to 06-11-2018 09-07-2018 to 09-18-2018 04-17-2018 to 04-28-2018 06-11-2018 to 07-03-2018 12-26-2018 to 01-06-2019
E68.80N¹ 68.4663, -34.3672	Kangerdlugssuaq Nordfjord	08-05-2018 to 08-16-2018 07-14-2018 to 08-05-2018 05-31-2018 to 06-11-2018 03-15-2018 to 04-06-2018 06-11-2018 to 06-22-2018 07-03-2018 to 07-14-2018 01-08-2018 to 01-19-2018 02-10-2018 to 03-15-2018 05-09-2018 to 05-31-2018 04-06-2018 to 04-28-2018 01-29-2018 to 01-30-2018 06-22-2018 to 07-03-2018 01-30-2018 to 02-10-2018 08-16-2018 to 09-07-2018 04-28-2018 to 05-09-2018
W61.70N 61.4746, -48.4912	Sermiligarssuk	12-28-2018 to 01-08-2019
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	07-10-2018 to 08-01-2018 08-12-2018 to 09-03-2018 05-27-2018 to 06-07-2018 04-24-2018 to 05-05-2018 09-03-2018 to 09-14-2018 08-01-2018 to 08-12-2018 06-29-2018 to 07-10-2018 05-05-2018 to 05-27-2018 06-07-2018 to 06-27-2018
W64.75N² 64.4610, -50.1732	Ujaragssuit Narssap	06-07-2018 to 06-27-2018
W68.60N 68.3079, -50.6854	Saraqardliup Alangordlek Nordenskiold	05-26-2018 to 06-06-2018 05-04-2018 to 05-26-2018 07-31-2018 to 09-02-2018 09-02-2018 to 09-13-2018 06-28-2018 to 07-09-2018 06-06-2018 to 06-28-2018 04-23-2018 to 05-04-2018 07-09-2018 to 07-31-2018
W69.10N¹ 68.7418, -50.4126	Alangordliup Jakobshavn Torssukatak	01-31-2018 to 02-11-2018 02-12-2018 to 02-23-2018 02-11-2018 to 02-22-2018 08-08-2018 to 08-19-2018 06-12-2018 to 06-23-2018 04-18-2018 to 04-29-2018 03-16-2018 to 03-27-2018 02-22-2018 to 03-05-2018 06-02-2018 to 06-13-2018 05-21-2018 to 06-01-2018 03-05-2018 to 03-16-2018 01-10-2018 to 01-21-2018 04-30-2018 to 06-02-2018 02-01-2018 to 02-12-2018 06-23-2018 to 07-04-2018 09-04-2018 to 09-15-2018 06-01-2018 to 06-12-2018 05-10-2018 to 50-21-2018 07-15-2018 to 07-26-2018 02-23-2018 to 03-06-2018 07-28-2018 to 08-08-2018 08-30-2018 to 09-10-2018 01-21-2018 to 02-01-2018 08-13-2018 to 08-24-2018 07-17-2018 to 07-28-2018 09-09-2018 to 09-20-2018 03-27-2018 to 04-07-2018 04-07-2018 to 04-18-2018 01-20-2018 to 01-31-2018 07-06-2018 to 07-17-2018 07-05-2018 to 07-27-2018 08-19-2018 to 08-30-2018 06-13-2018 to 07-05-2018 07-22-2018 to 08-02-2018 08-02-2018 to 08-13-2018 08-24-2018 to 09-04-2018 04-29-2018 to 05-10-2018 07-04-2018 to 07-15-2018 01-09-2018 to 01-20-2018 12-28-2018 to 01-08-2019
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	08-01-2018 to 09-03-2018 09-03-2018 to 09-14-2018 04-24-2018 to 05-05-2018 05-05-2018 to 05-27-2018 06-07-2018 to 06-29-2018 06-29-2018 to 07-10-2018 07-10-2018 to 08-01-2018 05-27-2018 to 06-07-2018
W70.90N² 70.7542, -50.9613	Perdlerfiup Silardleq	12-29-2018 to 01-09-2019
W71.65N 71.3100, -51.8327	Kangerdlugssup Rink	08-29-2018 to 09-09-2018 04-19-2018 to 04-30-2018 05-22-2018 to 06-02-2018 04-30-2018 to 05-22-2018 07-05-2018 to 07-27-2018 08-07-2018 to 08-29-2018 07-27-2018 to 08-07-2018 06-24-2018 to 07-05-2018 06-02-2018 to 06-24-2018 12-28-2018 to 01-08-2019
W72.90N 72.5829, -54.8293	Alangorssup Sermia Upernavik	08-13-2018 to 09-04-2018 05-28-2018 to 06-08-2018 08-02-2018 to 08-13-2018 04-25-2018 to 05-06-2018 06-30-2018 to 07-11-2018 05-06-2018 to 05-28-2018 07-11-2018 to 08-02-2018 09-04-2018 to 09-15-2018 06-08-2018 to 06-30-2018 12-23-2018 to 01-03-2019
W73.45N 73.1520, -55.6912	Kakivfat Giesecke Nutarmiut Tuvssaq	07-05-2018 to 07-27-2018 05-22-2018 to 06-02-2018 08-07-2018 to 08-29-2018 08-29-2018 to 09-09-2018 04-30-2018 to 05-22-2018 06-02-2018 to 06-24-2018 07-27-2018 to 08-07-2018 06-24-2018 to 07-05-2018 04-19-2018 to 04-30-2018 12-28-2018 to 01-08-2019
W73.75N 73.1520, -55.6912	Comell Sugarloaf Ussing	08-01-2018 to 08-12-2018 09-03-2018 to 09-14-2018 07-10-2018 to 08-01-2018 08-12-2018 to 09-03-2018 06-07-2018 to 06-29-2018 04-24-2018 to 05-05-2018 05-05-2018 to 05-27-2018 06-29-2018 to 07-10-2018 05-27-2018 to 06-07-2018
W74.50N 74.1506, -56.4843	Cornel Alison Igdlulik	08-13-2018 to 09-04-2018 06-08-2018 to 06-30-2018 08-02-2018 to 08-13-2018 05-06-2018 to 05-28-2018 06-30-2018 to 07-11-2018 09-04-2018 to 09-15-2018 04-25-2018 to 05-06-2018 07-11-2018 to 08-02-2018 05-28-2018 to 06-08-2018 12-23-2018 to 01-03-2019
W74.95N 74.5750, -57.6463	Hays Kjers Jensen	08-07-2018 to 08-29-2018 07-05-2018 to 07-27-2018 05-22-2018 to 06-02-2018 04-19-2018 to 04-19-2018 06-24-2018 to 07-05-2018 08-29-2018 to 09-09-2018 06-02-2018 to 06-24-2018 04-30-2018 to 05-22-2018 07-27-2018 to 08-07-2018 12-28-2018 to 01-08-2019
W75.50N 75.1264, -58.5281	Dietrichsons Steenstrup Sverdrups	04-26-2018 to 05-07-2018 05-29-2018 to 06-09-2018 08-14-2018 to 09-05-2018 05-07-2018 to 05-29-2018 06-09-2018 to 07-01-2018 09-05-2018 to 09-16-2018 07-01-2018 to 07-12-2018 07-12-2018 to 08-03-2018 08-03-2018 to 08-14-2018 12-24-2018 to 01-04-2019
W75.85N 75.4736, -59.2722	South of Nansen Nansen Nordenskiold	04-20-2018 to 05-01-2018 06-03-2018 to 06-25-2018 08-08-2018 to 08-30-2018 07-06-2018 to 07-28-2018 08-30-2018 to 09-10-2018 07-28-2018 to 08-08-2018 06-25-2018 to 07-06-2018 05-01-2018 to 05-23-2018 05-23-2018 to 06-03-2018 12-29-2018 to 01-09-2019
W76.10N 75.7205, -60.0987	Kong Oscar Nordenskiold Nutarmiut	08-02-2018 to 08-13-2018 07-11-2018 to 08-02-2018 05-06-2018 to 05-28-2018 08-13-2018 to 09-04-2018 05-28-2018 to 06-08-2018 06-08-2018 to 06-30-2018 06-30-2018 to 07-11-2018 09-04-2018 to 09-15-2018 04-25-2018 to 05-06-2018 12-23-2018 to 01-03-2019
W76.25N 75.9067, -61.2365	Balgoni Docker Fisher Igssuarssuit Leven	06-02-2018 to 06-24-2018 07-27-2018 to 08-07-2018 06-24-2018 to 07-05-2018 04-30-2018 to 05-22-2018 08-29-2018 to 09-09-2018 08-07-2018 to 08-29-2018 07-05-2018 to 07-27-2018 04-19-2018 to 04-30-2018 05-22-2018 to 06-02-2018 12-28-2018 to 01-08-2019
W76.35N 75.7416, -63.3988	Mohn Gade Meteor Yngvar Nielson	12-27-2018 to 01-07-2019
W76.40N 76.0579, -65.9643	Savigssuaq Helland Sidebriks	12-26-2018 to 01-06-2019
W76.45N 76.1084, -67.6907	Dedodes Harald Moltke	12-25-2018 to 01-05-2019

**Table 3.** Grid Names, Locations, and Data Availability
Grid Name Lower Left (lat, lon)	Glaciers in Grid	TSX Data Available for Download
Grid Name Lower Left (lat, lon)	Glaciers in Grid	2019
W62.10N 61.8077, -49.0172	Nigerdlikasik Avangnardleq Ukassorssuaq	01-02-2019 to 01-13-2019
W64.25N 63.9263, -49.8721	Kangia Qamanarssup	01-02-2019 to 01-13-2019
W69.10N 63.9263, -49.8721	Alangordliup Jakobshavn Torssukatak	01-08-2019 to 01-19-2019 01-19-2019 to 01-30-2019
W70.55N 70.2285, -50.9177	Lille Sermilik Kangigdleq Store	01-02-2019 to 01-13-2019
W73.75N 73.1520, -55.6912	Comell Sugarloaf Ussing	01-02-2019 to 01-13-2019
W76.35N 75.7416, -63.3988	Mohn Gade Meteor Yngvar Nielson	01-01-2019 to 01-12-2019
W77.55N 77.0728, -66.2296	Leidy Mane Heilprin Mellville Tracy	01-02-2019 to 01-13-2019

¹Grid expanded in 2012. Pre-2012 data were regridded to match post-2012 dimensions and re-released as part of 2013/2014 update.
²Grid added for 2013–2014.
³Grid added for 2009–2014.

Spatial Resolution

100 meters

Projection

Data are provided in subregions of a polar stereographic grid with a standard latitude of 70° N and a rotation angle of -45° (sometimes specified as a longitude of 45° W). With this convention, the y-axis extends south from the North Pole along the 45° W meridian.

The origin specifies the polar stereographic coordinates for the center of the lower left pixel, i.e., the first sample in the file. This specification, using the middle of the reference pixel, differs from that used in some GeoTIFF and other formats where the reference coordinates are specified for the outer corner of the reference pixel.

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Temporal Coverage and Resolution

Start date: 01 January 2009 (ongoing)

This data set undergoes periodic updates as new data are collected and processed.

Temporal Resolution

The temporal resolution varies between 11, 22, and 33 days on an 11-day repeat cycle.

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Parameter or Variable

The vx and vy files yield values of velocity in m/yr, in the x and y directions defined by the polar stereographic grid. The velocities are true values and not subject to the distance distortions present in a polar stereographic grid. In some areas, small holes have been filled via interpolation. Interpolated values are identifiable as the locations where velocity data are present but no error estimate exist. Radar-derived velocities are determined using a combination of conventional InSAR and speckle tracking techniques. See Joughin (2002) for more detail on errors and how they are computed.

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Software and Tools

GeoTIFF files can be viewed with a variety of Geographical Information System (GIS) software packages, including QGIS and ArcGIS.

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Data Acquisition and Processing

Theory of Measurements

The velocity maps in this data set were created using SAR data from DLR's twin satellites TerraSAR-X / TanDEM-X. The methods include a combination of speckle tracking and conventional interferometry. See Joughin (2002) for more detail.

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Sensor or Instrument Description

This data set was produced using Synthetic Aperture Radar (SAR) data obtained by DLR's twin satellites TerraSAR-X / TanDEM-X, which fly in close formation only a few hundred meters apart.

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Error Sources

Error estimates are provided for all non-interpolated, radar-derived velocity components (vx, vy). They include the statistical uncertainty associated with the phase and speckle tracking error inherent in the SAR data. Formal errors agree reasonably well compared with errors determined from GPS data (Joughin, 2002). However, the true uncertainty is likely larger and these estimates should be used as an indication of relative quality rather than as absolute error.

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Version History

Version 1.2 was released in May 2017. Refer to Table 4 for the data set version history:

**Table 4.** Version History
Version	Description
V1.2 (May 2017)	Renamed files to include the nominal time for pair; added 3 TSX subdirectories missing from their respective region directories; removed extraneous files from several TSX subdirectories; included .meta files for metadata
V1.1 (Feb. 2016)	GeoTIFF file format added; binary format discontinued; contains improved temporal sampling for the Jakobshavn Isbrae, Helheim, and Kangerdlugssuaq glaciers. The improved sampling addresses previous artifacts related to slope discontinuities at these glaciers' termini for the years 2009 – 2016
V1 (May 2011)	Initial release

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References and Related Publications

Contacts and Acknowledgments

Dr. Ian Joughin
University of Washington
Applied Physics Laboratory
1013 NE 40th Street
Box 355640
Seattle, Washington 98105
USA

Dr. Ian Howat
Ohio State University
Byrd Polar Research Center
Scott Hall Room 108
1090 Carmack Road
Columbus, Ohio 43210
USA

Dr. Ben Smith
University of Washington
Polar Science Center Applied Physics Laboratory
University of Washington
Department of Earth and Space Sciences
Seattle, Washington 98195
USA

Dr. Ted Scambos
University of Colorado
Cooperative Institute for Research in Environmental Science
National Snow and Ice Data Center
CIRES, 449 UCB
Boulder, Colorado 80309
USA

Acknowledgments:

These data were generated through a grant from the NASA MEaSUREs program.

Document Information

Document Creation Date

May 2011

Document Revision Date

July 2019

Greenland Ice Mapping Project 2 (GIMP-2) Algorithm Theoretical Basis Document

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