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  • MEaSUREs Greenland 6 and 12 day Ice Sheet Velocity Mosaics from SAR V002

    https://cmr.earthdata.nasa.gov/search/concepts/C3298524394-NSIDC_CPRD.xml
    Description:

    This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, contains 6 and 12 day surface velocity estimates for the Greenland Ice Sheet and periphery. Velocities are derived from images acquired by the European Space Agency (ESA) Copernicus Sentinel-1A, -1B, and -1C satellites. See <a href="http://nsidc.org/grimp">Greenland Ice Mapping Project (GrIMP)</a> for related data sets.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 58.5 -90.9 83 8.32

    NSIDC_CPRD Short Name: NSIDC-0766 Version ID: 2 Unique ID: C3298524394-NSIDC_CPRD

  • MEaSUREs Annual Antarctic Ice Velocity Maps V001

    https://cmr.earthdata.nasa.gov/search/concepts/C3298025582-NSIDC_CPRD.xml
    Description:

    This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, consists of annual (1 July to 30 June), 1 km resolution maps of ice component velocities for the Antarctic ice sheet. Data are provided for the year 2000-2001 and for each year from 2005 to 2025. Velocities are derived by applying interferometric analysis techniques to synthetic aperture radar (SAR) data acquired by various satellites and sensors and by feature tracking of optical imagery acquired by Landsat-8. This data set was originally titled "MEaSUREs Annual Antarctic Ice Velocity Maps 2005-2017."

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 -60 180

    NSIDC_CPRD Short Name: NSIDC-0720 Version ID: 1 Unique ID: C3298025582-NSIDC_CPRD

  • MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B V004

    https://cmr.earthdata.nasa.gov/search/concepts/C3298030030-NSIDC_CPRD.xml
    Description:

    This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, consists of 6-day and 12-day 50 m resolution image mosaics of the Greenland coastline and ice sheet periphery. The mosaics are derived from C-band Synthetic Aperture Radar (C-SAR) acquired by the Copernicus Sentinel-1A, -1B, and -1C satellites. See <a href="http://nsidc.org/grimp">Greenland Ice Mapping Project (GrIMP)</a> for related data sets.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 58.8 -87.1 81.4 5.8

    NSIDC_CPRD Short Name: NSIDC-0723 Version ID: 4 Unique ID: C3298030030-NSIDC_CPRD

  • MEaSUREs Greenland Quarterly Ice Sheet Velocity Mosaics from SAR and Landsat V005

    https://cmr.earthdata.nasa.gov/search/concepts/C3297893512-NSIDC_CPRD.xml
    Description:

    This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, contains quarterly (three-month interval) ice velocity mosaics for the Greenland Ice Sheet. This data set is derived from Synthetic Aperture Radar (SAR) data, obtained by TerraSAR-X/TanDEM-X and Sentinel-1A and -1B, and from optical imagery acquired by Landsat 8 and Landsat 9. See <a href="https://nsidc.org/grimp">Greenland Ice sheet Mapping Project (GrIMP)</a> for related data.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 58.5 -90.9 83 8.32

    NSIDC_CPRD Short Name: NSIDC-0727 Version ID: 5 Unique ID: C3297893512-NSIDC_CPRD

  • MEaSUREs Greenland 6 and 12 day Ice Sheet Velocity Mosaics from SAR V001

    https://cmr.earthdata.nasa.gov/search/concepts/C3298524391-NSIDC_CPRD.xml
    Description:

    This data set contains 6 and 12 day surface velocity estimates for the Greenland Ice Sheet and periphery derived from images acquired between 2015–2021 by the European Space Agency (ESA) Copernicus Sentinel-1A and Sentinel-1B satellites.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 60 -75 83 -14

    NSIDC_CPRD Short Name: NSIDC-0766 Version ID: 1 Unique ID: C3298524391-NSIDC_CPRD

  • MEaSUREs ITS_LIVE Regional Glacier and Ice Sheet Surface Velocities V002

    https://cmr.earthdata.nasa.gov/search/concepts/C3618748415-NSIDC_CPRD.xml
    Description:

    This data set from the Inter-Mission Time Series of Land Ice Velocity and Elevation (ITS_LIVE) project, part of NASA's Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, consists of regionally compiled, mean annual surface velocities, plus climatological means, for major glacier-covered regions. Velocities are derived from imagery acquired by the Sentinel-1 and Sentinel-2 and Landsat 4, 5, 7, 8, and 9 satellites. Data are available from 1985 to 2022, with nearly complete annual coverage provided after 2013.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -58.71 -129.17 -56.97 48.37

    NSIDC_CPRD Short Name: NSIDC-0776 Version ID: 2 Unique ID: C3618748415-NSIDC_CPRD

  • Sentinel-1A Single Look Complex Product Metadata

    https://cmr.earthdata.nasa.gov/search/concepts/C1214470496-ASF.xml
    Description:

    Sentinel-1A, the first satellite in the Sentinel-1 constellation, was launched April 3, 2014. The Sentinel-1 satellites (Sentinel-1A, Sentinel-1B, and Sentinel-1C) are sun-synchronous polar-orbiting satellites that operate day and night performing C-band synthetic aperture radar (SAR) imaging. The Sentinel-1 satellites operate in four imaging modes with different resolutions (down to 5 meters) and coverage (up to 400 kilometers). The Sentinel-1 satellites provide dual polarization capability and short revisit times. Sentinel-1A Single Look Complex (SLC) data products consist of focused SAR data and are provided in slant-range geometry. Slant range is the natural radar range observation coordinate, defined as the line-of-sight from the radar to each reflecting object. The products are in zero-Doppler orientation, where each row of pixels represents points along a line perpendicular to the sub-satellite track. The products include a single look in each dimension using the full available signal bandwidth and complex samples (real and imaginary) preserving the phase information. The products have been geo-referenced using the satellite’s orbit and attitude data and have been corrected for azimuth bi-static delay, elevation antenna pattern, and range spreading loss. The products in this collection are ISO compliant XML metadata created by the Alaska Satellite Facility Distributed Active Archive Center from the associated Sentinel-1A SAFE format product.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    ASF Short Name: SENTINEL-1A_META_SLC Version ID: 1 Unique ID: C1214470496-ASF

  • Sentinel-1A Level 0 Product

    https://cmr.earthdata.nasa.gov/search/concepts/C1214470561-ASF.xml
    Description:

    Sentinel-1A, the first satellite in the Sentinel-1 constellation, was launched April 3, 2014. The Sentinel-1 satellites (Sentinel-1A, Sentinel-1B, and Sentinel-1C) are sun-synchronous polar-orbiting satellites that operate day and night performing C-band synthetic aperture radar (SAR) imaging. The Sentinel-1 satellites operate in four imaging modes with different resolutions (down to 5 meters) and coverage (up to 400 kilometers). The Sentinel-1 satellites provide dual polarization capability and short revisit times. Sentinel-1A Level 0 products consist of compressed and unprocessed instrument source packets, with additional annotations and auxiliary information to support processing. Level 0 products are the basis from which all other high level products are produced. They are compressed using Flexible Dynamic Block Adaptive Quantization (FDBAQ) which provides a variable bit rate coding that increases the number of bits allocated to bright scatterers. For the data to be usable, it will need to be decompressed and processed using focusing software. Level 0 data includes noise, internal calibration and echo source packets as well as orbit and attitude information. The data products in this collection mirror the Sentinel-1A products provided through the Copernicus Data Space Ecosystem.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    ASF Short Name: SENTINEL-1A_RAW Version ID: 1 Unique ID: C1214470561-ASF

  • ARIA Sentinel-1 Geocoded Unwrapped Interferograms

    https://cmr.earthdata.nasa.gov/search/concepts/C2859376221-ASF.xml
    Description:

    Level-2 interferometric products generated by the Jet Propulsion Lab (JPL) ARIA project. The creation, discovery, and distribution of these products support InSAR science around tectonically active regions, volcanoes, or areas of subsidence/uplift. The generation of the ARIA-S1-GUNW products was in part funded through collaborations with the AWS Open Data Program and NASA ROSES.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    ASF Short Name: ARIA_S1_GUNW Version ID: 1 Unique ID: C2859376221-ASF

  • MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data V002

    https://cmr.earthdata.nasa.gov/search/concepts/C3291179132-NSIDC_CPRD.xml
    Description:

    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. The maps are derived from Interferometric Synthetic Aperture Radar (InSAR) data obtained by the Canadian Space Agency's (CSA) RADARSAT-1, the Japan Aerospace Exploration Agency's (JAXA) Advanced Land Observation Satellite (ALOS), and the German Aerospace Center's (DLR) TerraSAR-X/TanDEM-X (TSX/TDX) satellites, as well as from the European Space Agency's (ESA) C-band Synthetic Aperture Radar data from Copernicus Sentinel-1A and -1B. See <a href="http://nsidc.org/data/measures/gimp">Greenland Ice Mapping Project (GIMP)</a> for related data.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 60 -75 83 -14

    NSIDC_CPRD Short Name: NSIDC-0478 Version ID: 2 Unique ID: C3291179132-NSIDC_CPRD