MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data, Version 1
Data set id:
NSIDC-0478
DOI: 10.5067/MEASURES/CRYOSPHERE/nsidc-0478.001
There is a more recent version of these data.
Overview
This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, contains seasonal (winter) ice-sheet-wide velocity maps for Greenland derived from Interferometric Synthetic Aperture Radar (InSAR) data obtained by RADARSAT-1, the Advanced Land Observation Satellite (ALOS), and the TerraSAR-X satellite.
Parameter(s):
ICE VELOCITY
Platform(s):
ALOS, RADARSAT-1, TSX
Sensor(s):
PALSAR, SAR
Data Format(s):
GeoTIFF
Temporal Coverage:
3 September 2000 to 24 January 2001
13 December 2005 to 20 April 2006
18 December 2006 to 15 April 2007
1 November 2007 to 30 April 2008
1 December 2008 to 28 February 2009
13 December 2005 to 20 April 2006
18 December 2006 to 15 April 2007
1 November 2007 to 30 April 2008
1 December 2008 to 28 February 2009
Temporal Resolution:
- 1 year
Spatial Resolution:
- 500 m
- 500 m
Spatial Coverage:
N:
83
S:
60
E:
-14
W:
-75
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
Data Access & Tools
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How to Articles
Many NSIDC DAAC data sets can be accessed using the 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
The NSIDC Data Map Services Application Programming Interface (API) provides HTTP URLs for requesting geo-registered map images from NSIDC's geospatial database. A WMS request defines the geographic layer(s) and area of interest to be processed.
Below the image in this article, you will find sample code in IDL, MATLAB, and Python to read in a GeoTIFF file, extract the metadata, and create an image.
The code has been tested with the following data products:
We recommend using the Geospatial Data Abstraction Library (GDAL) to convert GeoTIFF files into a different format.
We recommend using the Geospatial Data Abstraction Library (GDAL) or a GIS to reproject geoTIFF files.
All data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is directly accessible through our HTTPS file system using Wget or curl. This article provides basic command line instructions for accessing data using this method.
NASA Worldview is a map interface that allows users to interactively browse imagery, create visualizations, and download the underlying data.
NASA's Global Imagery Browse Services (GIBS) provides up to date, full resolution imagery for selected NSIDC DAAC data sets.