MEaSUREs Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics, Version 2
Data set id:
NSIDC-0642
DOI: 10.5067/ESFWE11AVFKW
This is the most recent version of these data.
Version Summary
Version Summary
New major version
Overview
This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, consists of annual, digitized (polyline) ice front positions for 239 outlet glaciers in Greenland. Ice front positions are derived from Sentinel-1A, Sentinel-1B, and RADARSAT-1 synthetic aperture radar (SAR) mosaics, plus imagery from Landsat 1 through Landsat 5 and Landsat 7 and Landsat 8. Although temporal coverage varies by glacier, data are available for the winter seasons 1972–1973 through 2020–2021. Data are provided as shapefiles.
See Greenland Ice Mapping Project (GrIMP) for related data.
Parameter(s):
GLACIER EXTENT
Platform(s):
LANDSAT-1
LANDSAT-2
LANDSAT-3
LANDSAT-4
LANDSAT-5
LANDSAT-7
LANDSAT-8
RADARSAT-1
Sentinel-1A
Sentinel-1B
Sensor(s):
C-SAR
ETM+
MSS
OLI
SAR
TM
Data Format(s):
Shapefile
Temporal Coverage:
- 16 September 1972 to 25 March 2021
Temporal Resolution:
- 1 year
Spatial Resolution:
- 15 m to 50 m
- 15 m to 50 m
Spatial Reference System(s):
- WGS 84 / NSIDC Sea Ice Polar Stereographic NorthEPSG:3413
Spatial Coverage:
- N:83S:60E:-14W:-75
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
Data Access & Tools
A free NASA Earthdata Login account is required to access these data. Learn More
Sample Data Image
Image
This map shows terminus positions for the Alison Glacier (Nunatakassap Sermia), color-coded by year. Credit: NASA MEaSUREs GrIMP Data: ESA, USGS, CSA
Documentation
Help Articles
General Questions & FAQs
This article covers frequently asked questions about the NASA NSIDC DAAC's Earthdata cloud migration project and what it means to data users.
How to Articles
This article shows how to download NSIDC DAAC data from NASA Earthdata Cloud to your computer using three tools: wget and curl—popular command-line utilities for downloading files—and Data Downloader, a Python-based command-line tool developed by the Physical Oceanography Distributed Active Archi
Many NSIDC DAAC data sets can be accessed using NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface.Users have the option to:
We recommend using the Geospatial Data Abstraction Library (GDAL) or a GIS to reproject geoTIFF files.
There are external Jupyter notebooks available that can be used to search for GrIMP products and incorporate them into a new QGIS project:
The NASA Earthdata Cloud is the NASA cloud-based archive of Earth observations. It is hosted by Amazon Web Services (AWS). Learn how to find and access NSIDC DAAC data directly in the cloud.