Data Announcements

Data set update: July and August data added to MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B

8 November 2018

The MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with mosaics through August 2018. This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 6 and 12-day 50 m resolution image mosaics of the Greenland coastline and ice sheet periphery beginning in January 2015. The mosaics are derived from C-band Synthetic Aperture Radar (C-SAR) acquired by the Copernicus Sentinel-1A and -1B imaging satellites.

Data set DOI: https://doi.org/10.5067/GPVL3SACPBW4

Data set update: MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data, Version 2

21 September 2018

The MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data, Version 2 data set has been updated to include data from Winter 2017/2018 and is available from the National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). 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.

Additional changes include updating the shapefiles from winters 2014 to 2018, changing the velocity magnitude file name, and changing the missing data value for the velocity magnitude (vv) files to -1 and setting it as the attribute in all files.

Data set DOI: https://doi.org/10.5067/OC7B04ZM9G6Q

 

Data set update: June data added to MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B

8 August 2018

The MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with mosaics through June 2018. This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 6 and 12-day 50 m resolution image mosaics of the Greenland coastline and ice sheet periphery beginning in January 2015. The mosaics are derived from C-band Synthetic Aperture Radar (C-SAR) acquired by the Copernicus Sentinel-1A and -1B imaging satellites.

Data set DOI: https://doi.org/10.5067/GPVL3SACPBW4

Data set update: MEaSUREs Greenland selected glacier site velocity maps updated through December 2017

2 August 2018

The MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, Version 1 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with data through December 2017. This data set, part of the 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 beginning 1 January 2009. The InSAR Selected Glacier Site Velocity Maps are produced from the German Aerospace Center’s (DLR) TerraSAR-X/TanDEM-X (TSX/TDX) image pairs.

Data set DOI: https://doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0481.001

May data added to MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B

12 July 2018

The MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with mosaics through May 2018. This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 6 and 12-day 50 m resolution image mosaics of the Greenland coastline and ice sheet periphery beginning in January 2015. The mosaics are derived from C-band Synthetic Aperture Radar (C-SAR) acquired by the Copernicus Sentinel-1A and -1B imaging satellites.

Data set DOI: https://doi.org/10.5067/GPVL3SACPBW4

MEaSUREs MOA2014 now available

10 July 2018

The MEaSUREs MODIS Mosaic of Antarctica 2013-2014 (MOA2014) Image Map, Version 1 data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, includes two image maps produced from composited image swath data acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) over Antarctica for the 2013-2014 austral summer season. The two image maps, a snow grain size map and a surface morphology map, are both provided at two different grid scales of 125 m and 750 m resolution. These data are a follow on to the MOA2004 and MOA2009 data sets.

DOI: https://doi.org/10.5067/RNF17BP824UM

April data added to MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B

20 June 2018

The MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with mosaics through April 2018. This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 6 and 12-day 50 m resolution image mosaics of the Greenland coastline and ice sheet periphery beginning in January 2015. The mosaics are derived from C-band Synthetic Aperture Radar (C-SAR) acquired by the Copernicus Sentinel-1A and -1B imaging satellites.

Data set DOI: https://doi.org/10.5067/GPVL3SACPBW4

Version 1.3 of the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR now available

18 June 2018

Version 1.3 of the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) for all sensors. The changes in this minor version update vary depending on the sensor and are listed by sensor in Table 11 of the user guide.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: https://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

Data Access Change for MEaSUREs Greenland Monthly Image Mosaics from MODIS

4 June 2018

NSIDC DAAC would like to announce a data access change for the MEaSUREs Greenland Monthly Image Mosaics from MODIS, Version 1. Data are now solely accessible through our primary archive at https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0724.001/. File-level spatial and temporal metadata were added to aid in searching and ordering the data through Earthdata Search.

DOI: https://doi.org/10.5067/6L166FFRPCPP

Data Available as v1.3 for MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

31 May 2018

Version 1.3 of the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) for the AMSR-E, F16, F17, F18 and F19 sensors. The changes in this minor version update vary depending on the sensor and are listed by sensor in Table 11 of the user guide. Data from the remaining sensors included in this data set will be reprocessed to version 1.3 soon.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

New Data Available for MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B

15 May 2018

The March 2018 data are now available for the MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 2 data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

January 2018 Data Available for MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B

27 March 2018

The January 2018 data is now available for the MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 2 data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

Version 2 of MEaSUREs MODIS Mosaic of Greenland (MOG) 2005, 2010, and 2015 Image Maps now available

27 March 2018

Version 2 of the MEaSUREs MODIS Mosaic of Greenland (MOG) 2005, 2010, and 2015 Image Maps data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). Version 2 includes Mosaic of Greenland 2010 and 2015 (MOG2010 and MOG2015) data, in addition to the MOG2005 data.

This data set is funded by NASA’s Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

DOI: https://doi.org/10.5067/9ZO79PHOTYE5

Data Access Change for MEaSUREs Greenland Ice Mapping Project (GIMP) Digital Elevation Model

12 March 2018

NSIDC DAAC would like to announce a change to data access for the MEaSUREs Greenland Ice Mapping Project (GIMP) Digital Elevation Model, Version 1. Data access is now solely through our primary archive at: https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0645.001/. File level spatial and temporal metadata have been added to aid in searching and ordering the data through Earthdata Search.

DOI: https://doi.org/10.5067/NV34YUIXLP9W

MEaSUREs Releases New Greenland Annual Ice Sheet Velocity Mosaics from SAR and Landsat

6 March 2018

The MEaSUREs Greenland Annual Ice Sheet Velocity Mosaics from SAR and Landsat, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, contains annual ice velocity mosaics for the Greenland Ice Sheet derived from Synthetic Aperture Radar (SAR) data obtained by TerraSAR-X/TanDEM-X (TSX/TDX) and Copernicus Sentinel-1A and -1B satellites, and from Landsat 8 optical imagery for years 2015 to 2017.

Data Set DOI: http://dx.doi.org/10.5067/OBXCG75U7540

New Data Available for MEaSUREs Greenland Quarterly Ice Sheet Velocity Mosaics from SAR and Landsat 8

6 March 2018

New 2017 data is now available for the MEaSUREs Greenland Quarterly Ice Sheet Velocity Mosaics from SAR and Landsat 8, Version 1 data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: https://doi.org/10.5067/1Q1AM4U8Y892

New Data Available for MEaSUREs Greenland Monthly Ice Sheet Velocity Mosaics from SAR and Landsat 8

6 March 2018

New 2017 data is now available for the MEaSUREs Greenland Monthly Ice Sheet Velocity Mosaics from SAR and Landsat 8, Version 1 data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: https://doi.org/10.5067/OPFQ9QDEUFFY

Data Access Change for MEaSUREs Annual Antarctic Ice Velocity Maps 2005-2017

6 March 2018

NSIDC DAAC would like to announce a change to data access for the MEaSUREs Annual Antarctic Ice Velocity Maps 2005-2017, Version 1. Data access is now solely through our primary archive at: https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0720.001/. File level spatial and temporal metadata have been added to aid in searching and ordering the data through Earthdata Search.

DOI: https://doi.org/10.5067/9T4EPQXTJYW9

Data Access Change for MEaSUREs Antarctic Boundaries for IPY 2007-2009 from Satellite Radar

14 February 2018

NSIDC DAAC would like to announce a change to data access for the MEaSUREs Antarctic Boundaries for IPY 2007-2009 from Satellite Radar, Version 2. Data access is now solely through our primary archive at: https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0709.002/. File level spatial and temporal metadata have been added to aid in searching and ordering the data through Earthdata Search.

DOI: http://dx.doi.org/10.5067/AXE4121732AD

MEaSUREs Releases New Greenland Quarterly Ice Sheet Velocity Mosaics from SAR and Landsat

8 February 2018

The MEaSUREs Greenland Quarterly Ice Sheet Velocity Mosaics from SAR and Landsat, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, contains quarterly ice velocity mosaics for the Greenland Ice Sheet derived from Synthetic Aperture Radar (SAR) data obtained by TerraSAR-X/TanDEM-X (TSX/TDX) and Copernicus Sentinel-1A and -1B satellites, and from Landsat 8 optical imagery for years 2015 and 2016.

Data Set DOI: http://dx.doi.org/10.5067/1Q1AM4U8Y892

MEaSUREs Releases New Greenland Monthly Ice Sheet Velocity Mosaics from SAR and Landsat

8 February 2018

The MEaSUREs Greenland Monthly Ice Sheet Velocity Mosaics from SAR and Landsat, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, contains monthly ice velocity mosaics for the Greenland Ice Sheet derived from Synthetic Aperture Radar (SAR) data obtained by TerraSAR-X/TanDEM-X (TSX/TDX) and Copernicus Sentinel-1A and -1B satellites, and from Landsat 8 optical imagery for years 2015 and 2016.

Data Set DOI: http://dx.doi.org/10.5067/OPFQ9QDEUFFY

New Data Available for MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B

8 February 2018

The December 2017 data is now available for the MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 2 data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

MEaSUREs Releases Daily Lake Ice Phenology Time Series Derived from AMSR-E and AMSR2

23 January 2018

The Daily Lake Ice Phenology Time Series Derived from AMSR-E and AMSR2, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 5 km ice phenology retrievals describing daily lake ice conditions (ice-on/ice-off) over the Northern Hemisphere. This satellite-based data set allows for rapid assessment and regional monitoring of seasonal ice coverage over large lakes with resulting accuracy suitable for global change studies.

Data Set DOI: 10.5067/HT4NQO7ZJF7M

November 2017 Data Available for MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B

17 January 2018

The November 2017 data is now available for the MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 2 data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

MEaSUREs Releases New Daily 6 km Land Freeze/Thaw Status from AMSR-E and AMSR2

9 January 2018

The MEaSUREs Northern Hemisphere Polar EASE-Grid 2.0 Daily 6 km Land Freeze/Thaw Status from AMSR-E and AMSR2, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, augments an existing global 25 km resolution data set, the MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status. It provides daily landscape Freeze/Thaw status at 6 km resolution for the years 2002 to 2016 derived from observations acquired by the Advanced Microwave Scanning Radiometer – Earth Observing System (AMSR-E) and the Advanced Microwave Scanning Radiometer 2 (AMSR2).

Data Set DOI: http://dx.doi.org/10.5067/WM9R9LQ2SA85

New Data Available for MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B

3 January 2018

The October 2017 data is now available for the MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 2 data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

Data Access Change for MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status

14 December 2017

NSIDC DAAC would like to announce a change to data access for the MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status, Version 4 data set. Data access is now solely through our primary archive at: https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0477.004/. File level spatial and temporal metadata have been added to aid in searching and ordering the data through Earthdata Search.

DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0477.004

New Data added to MEaSUREs Annual Antarctic Ice Velocity Maps 2005-2017

5 December 2017

The MEaSUREs Annual Antarctic Ice Velocity Maps 2005-2017, Version 1 data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with velocity maps for 2017.

These data are generated through a grant from the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/9T4EPQXTJYW9

Data Access Change for MEaSUREs InSAR-Based Ice Velocity of the Amundsen Sea Embayment, Antarctica

20 November 2017

NSIDC would like to announce a change to data access for the MEaSUREs InSAR-Based Ice Velocity of the Amundsen Sea Embayment, Antarctica, Version 1 data set. Data access is now solely through our primary portal at: https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0545.001/. File level spatial and temporal metadata have been added to aid in searching the data.

DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0545.001

New Data Available for MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B

31 October 2017

The September 2017 data is now available for the MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 2.1 data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

New Data Available as v1.2 for MEaSUREs Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics

11 October 2017

MEaSUREs Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) as version 1.2.  For this minor version, glaciers were added to two winters:
2006/2007 — glaciers 90 and 91
2008/2009 — glaciers 1-9, 90, and 91

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/DC0MLBOCL3EL

New Updates for MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from Optical Images

5 October 2017

NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) would like to announce new updates for MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from Optical Images, Version 2.  The updates include the following:

  • Temporal coverage expanded to 1985-2016 using data from Landsat 4 and 5
  • A more aggressive filtering method was applied to remove the following small, isolated clusters of data:
    • Ecoast-62.10N: OPT_E62.10N_2003-09, OPT_E62.10N_2003-10, OPT_E62.10N_2004-09, OPT_E62.10N_2004-10
    • Ecoast-64.65N: OPT_E64.65N_2011-09, OPT_E64.65N_2011-10
  • Spatial coverage was increased by 24 new grids

DOI: 10.5067/VM5DZ20MYF5C

New Data Available for MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

3 October 2017

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has added SMMR data to the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set.

Also, the F10 data from this data set is now available at version 1.2. The minor change in this version corrects the handling of QC flags to retain more data, eliminating only the flagged data in a given channel and taking care not to eliminate data in other channels.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

New Data for MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B

3 October 2017
NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) would like to announce new data available for MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 2 data set. August 2017 data has been added.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

MEaSUREs Releases New Greenland Annual Ice Sheet Velocity Mosaics from SAR and Landsat

2 October 2017

The MEaSUREs Greenland Annual Ice Sheet Velocity Mosaics from SAR and Landsat, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides monthly image mosaics of the Greenland coastline and ice sheet periphery. The image mosaics are constructed from composited MODIS imagery, acquired each month between March 2008 to September 2016.

Data Set DOI: http://dx.doi.org/10.5067/OBXCG75U7540

Data Access Change for MEaSUREs Multi-year Greenland Ice Sheet Velocity Mosaic

2 October 2017

NSIDC DAAC would like to announce a change to data access for the MEaSUREs Multi-year Greenland Ice Sheet Velocity Mosaic, Version 1 data set. Data access is now solely available through our primary archive at: https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0670.001/. File level spatial and temporal metadata have been added to aid in searching and ordering the data through Earthdata Search.

DOI: http://dx.doi.org/10.5067/QUA5Q9SVMSJG

Data Available as v1.2 for MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

25 September 2017

The F14 data from the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set is now available at version 1.2.  The minor change in this version corrects the handling of QC flags to retain more data, eliminating only the flagged data in a given channel and taking care not to eliminate data in other channels.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

Data Access Change for MEaSUREs Site Velocity Maps from InSAR Data

25 September 2017

NSIDC would like to announce a change to data access for the MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, Version 1 data set. Direct download data access has changed for this data set to https://daacdata.apps.nsidc.org/pub/DATASETS/nsidc0481_MEASURES_greenland_V01/, which allows files to be contained in folders by subregion. Data is still available for searching and ordering in Earthdata Search.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0481.001

Data Available as v1.2 for MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

22 September 2017

The F15 data from the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set is now available at version 1.2.  The minor change in this version corrects the handling of QC flags to retain more data, eliminating only the flagged data in a given channel and taking care not to eliminate data in other channels.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

New Data and New Version for MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B

15 September 2017

The MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 2.1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) with a minor version update and July 2017 data. For version 2.1, Sentinel-1, track 83 was added to the data beginning with the May 2017 mosaic. This new track improves coverage in the southern part of the ice sheet.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

Version 4, Daily Freeze/Thaw Status of the Landscape Now Available

12 September 2017

Version 4 of the MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). New for this version:

  • the record now spans 1979 to 2016;
  • the freeze/thaw domain encompasses all land areas affected by seasonal freezing, including urban, snow-ice dominant, open water body dominant, and barren land;
  • freeze/thaw status is determined with a modified seasonal threshold algorithm, calibrated annually for all pixels using daily surface air temperature records;
  • new bit flags identify cells (and days) with missing/interpolated Tb, large open water bodies, complex terrain, and large precipitation events.

This data set is funded by NASA’s Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

DOI: https://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0477.004

 

New Data Available for MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data

11 September 2017

NSIDC would like to announce new data available for the MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data, Version 2 data set. Seasonal (winter) velocity maps for 2014/15, 2015/16, and 2016/17 from TSX/TDX and Sentinel-1 are now available. This data is posted at both 500 m and 200 m resolution. This release also includes the addition of full record ancillary shapefiles that contain information about the satellite tracks used to produce the mosaics as well as browse images of the magnitudes.

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.

DOI: http://dx.doi.org/10.5067/OC7B04ZM9G6Q

Data Access Change for MEaSUREs InSAR-Based Antarctica Ice Velocity Map

11 September 2017

NSIDC would like to announce a change to data access for the MEaSUREs InSAR-Based Antarctica Ice Velocity Map, Version 2 data set. Data access is now solely through our primary portal at: https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0484.002/. File level spatial and temporal metadata have been added to aid in searching the data.

DOI: http://dx.doi.org/10.5067/D7GK8F5J8M8R

Data Available as v1.2 for MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

31 August 2017

The F13 data from the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set is now available at version 1.2.  The minor change in this version corrects the handling of QC flags to retain more data, eliminating only the flagged data in a given channel and taking care not to eliminate data in other channels.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

New Data Available as v1.1 for MEaSUREs Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics

23 August 2017

MEaSUREs Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics, Version 1 data set is now available at version 1.1.  The minor changes in this version include:

  • Added data for winters of 2014/2015, 2015/16, 2016/17
  • Added new parameter attributes for the new data
  • Added 29 new glaciers
  • Provided a new GlacierID file with added glaciers and updated attributes

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/DC0MLBOCL3EL

Data Access Change for MEaSUREs MODIS Mosaic of Greenland 2005 (MOG2005) Image Map

14 August 2017

NSIDC would like to announce a change to data access for the MEaSUREs MODIS Mosaic of Greenland 2005 (MOG2005) Image Map, Version 1 data set. Data access is now solely through our primary portal at: https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0547.001/. File level spatial and temporal metadata have been added to aid in searching the data.

DOI: http://dx.doi.org/10.5067/IAGYM8Q26QRE

Data Available as v1.2 for MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

8 August 2017

The F11 data from the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set is now available at version 1.2.  The minor change in this version corrects the handling of QC flags to retain more data, eliminating only the flagged data in a given channel and taking care not to eliminate data in other channels.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

Update to MEaSUREs Greenland Image Mosaics

2 August 2017

The MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated with mosaics through 30 June 2017. This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 6- and 12-day 50 m resolution image mosaics of the Greenland coastline and ice sheet periphery.

Data Set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

MEaSUREs Releases New Monthly Image Mosaics for Greenland

24 July 2017

The MEaSUREs Greenland Monthly Image Mosaics from MODIS, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides monthly image mosaics of the Greenland coastline and ice sheet periphery. The image mosaics are constructed from composited MODIS imagery, acquired each month between March 2008 to September 2016.

Data Set DOI: http://dx.doi.org/10.5067/6L166FFRPCPP

New Version for MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B

24 July 2017

The MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 2 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The changes for Version 2 include:

  • data reprocessed with a small radiometric correction to improve consistency across seam boundaries
  • temporal coverage was expanded through 31 May 2017
  • dates were added to the .gif files

Data Set DOI: http://dx.doi.org/10.5067/GPVL3SACPBW4

Data Available as v1.2 for MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

24 July 2017

The F08 data from the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set is now available at version 1.2.  The minor change in this version corrects the handling of QC flags to retain more data, eliminating only the flagged data in a given channel and taking care not to eliminate data in other channels.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

Data Access Change for MEaSURES Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics

13 July 2017

NSIDC would like to announce a change to data access for the MEaSUREs Annual Greenland Outlet Glacier Terminus Positions from SAR, Version 1 data set. Data access is now solely through our primary portal at: https://n5eil01u.ecs.nsidc.org/MEASURES/NSIDC-0642.001/. File level spatial and temporal metadata have been added to aid in searching the data.

DOI: http://dx.doi.org/10.5067/DC0MLBOCL3EL

New Data Added to MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

6 July 2017

MEaSUREs has added SSMIS data from the F16 platform to the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

New Data Added to MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

29 June 2017

MEaSUREs has added SSMIS data from the F17, F18, and F19 platforms to the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). Also, AMSR-E data are now available as v1.2. The minor changes include:

  • Addition of missing input data for the first day of the month in the N and S projections
  • Change of  the size of the time dimension from 1 to “UNLIMITED”
  • Addition of files for dates with no data.

This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

Data Access Change for MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR

28 June 2017

MEaSUREs Releases New Image Mosaics for Greenland

16 June 2017

The MEaSUREs Greenland Image Mosaics from Sentinel-1A and 1B, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 6 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 Sentinel-1A and 1B imaging satellites, between January 2015 and April 2017.

Data Set DOI: http://dx.doi.org/10.5067/8LCCSFWL7L28

New Data added to MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR

1 June 2017

The MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with velocity maps for 2016. This release, Version 1.2, includes new browse images, metadata files, and more descriptive file names, and fills in some missing 2015 files.

These data are generated through a grant from the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0481.001

New Version for MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR Data

15 May 2017

The MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, Version 2 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, consists of mean monthly velocity maps for selected glacier outlet areas. The maps are generated by tracking visible features between optical image pairs acquired by the Landsat 7 Enhanced Thematic Mapper Plus (ETM+), the Landsat 8 Operational Land Imager (OLI), and the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). The Version 2 update expands the temporal coverage of the data set through September 2016, using cross-path Landsat pairs to fill in temporal gaps in the 2016 data. Version 2 also includes the application of a more aggressive filtering method, the correction of misnamed error values, and the addition of a west coast grid at 80.75 degrees north.

Data Set DOI: http://dx.doi.org/10.5067/VM5DZ20MYF5C

New Data Added to MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

4 May 2017

MEaSUREs has added SSM/I data from the F14 platform to the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The temporal coverage is now 9 July 1987 through 4 October 2011. This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

MEaSUREs Releases New Annual Velocity Maps for the Antarctic

3 May 2017

The MEaSUREs Annual Antarctic Ice Velocity Maps, 2005-2016 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 11 annual maps of Antarctic ice velocity from 2005-2016. The maps are assembled using ALOS PALSAR, ENVISAT ASAR, RADARSAT-1, RADARSAT-2, Sentinel-1, TerraSAR-X (TSX), TanDEM –X (TDX) SAR data, and Landsat-8 optical imagery acquired between 2005 and 2016.

Data Set DOI: http://dx.doi.org/10.5067/9T4EPQXTJYW9

New Data Added to MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

26 April 2017

MEaSUREs has added SSM/I data from the F11 platform to the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The temporal coverage is now 9 July 1987 through 4 October 2011. This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

New Version for MEaSUREs InSAR-Based Antarctica Ice Velocity Map

21 April 2017

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has released Version 2 of MEaSUREs InSAR-Based Antarctica Ice Velocity Map. Major updates to the data set include data from 2011-2016 acquired from RADARSAT-2, Sentinel-1, TerraSAR-X, and TanDEM-X. Landsat-8 optical imagery also was integrated into the data to improve coverage. The mosaicking method was updated to make best use of the large number of scenes used for the mosaic. In addition, several new parameters are included for assessing the quality of the data: the standard deviation of vx and vy for each pixel and count of scenes used for each pixel. Coverage increased from 95.1% to 99.6% and a reduction in error was achieved due to the utilization of more data.

This project was funded by the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program.

Data Set DOI: http://dx.doi.org/10.5067/D7GK8F5J8M8R

New Data Added to MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR

19 April 2017

MEaSUREs has added SSM/I data from the F10 platform to the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The temporal coverage is now 9 July 1987 through 4 October 2011. This data set is part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

MEaSUREs Releases New Versions for Three Data Sets

12 April 2017

Three data sets in the NASA’s Making Earth System Data Records for Use in Research Environments (MEaSUREs) program are now available in a new version from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The new version, 1.1, corrects the location of the upper left pixel in each GeoTIFF file. The corrected location of the upper left pixel is the distance in meters from the north pole to the upper left corner of the upper left pixel, effectively shifting the location by one-half pixel to the upper left relative to their positions in the previous version. Only the geolocation metadata in each GeoTIFF has changed; the data array is the same as in the previous version.

To obtain these data, visit the following data set landing pages:

 

 

MEaSUREs Releases the GIMP Digital Elevation Model from GeoEye and WorldView Imagery

28 March 2017

The MEaSUREs Greenland Ice Mapping Project (GIMP) Digital Elevation Model from GeoEye and WorldView Imagery data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, consists of an enhanced resolution digital elevation model (DEM) for the Greenland Ice Sheet.

Data Set DOI: http://dx.doi.org/10.5067/H0KUYVF53Q8M

MEaSUREs Releases New Greenland Land and Ocean Classification Masks

15 February 2017

The MEaSUREs Greenland Ice Mapping Project (GIMP) Land Ice and Ocean Classification Mask data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides a complete land ice and ocean classification mask for the Greenland ice sheet that was mapped using a combination of Landsat 7 ETM+ panchromatic band imagery, and RADARSAT- 1 Synthetic Amplitude Radar (SAR) amplitude images.

Data Set DOI: http://dx.doi.org/10.5067/B8X58MQBFUPA

MEaSUREs releases New Greenland Image Mosaic

10 February 2017

The MEaSUREs Greenland Ice Mapping Project (GIMP) 2000 Image Mosaic data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides a complete 15 m resolution image mosaic of the Greenland ice sheet derived from Landsat ETM+ and RADARSAT imagery from the years 1999 to 2002.

Data set DOI: http://dx.doi.org/10.5067/4RNTRRE4JCYD

NSIDC Polaris Search and Order being Retired 15 February 2017

2 February 2017

THE NSIDC Polaris Search and Order tool will be retired on 15 February 2017. Please contact NSIDC User Services via email: nsidc@nsidc.org with questions.

Update for MEaSUREs Greenland Ice Sheet Velocity Map

26 January 2017

The MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) now includes 2012-2013 data.

Data Set DOI: http://dx.doi.org/10.5067/OC7B04ZM9G6Q

Update for CanSISE Observation-Based Ensemble of Northern Hemisphere Terrestrial Snow Water Equivalent

24 January 2017

The CanSISE Observation-Based Ensemble of Northern Hemisphere Terrestrial Snow Water Equivalent data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated to Version 2.

Data Set DOI: http://dx.doi.org/10.5067/96ltniikJ7vd

MEaSUREs Releases Daily EASE-Grid 2.0 Brightness Temperature

18 January 2017

The MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, consists of an improved, enhanced-resolution, gridded passive microwave Earth System Data Record (ESDR) for monitoring cryospheric and hydrologic time series from SMMR, SSM/I-SSMIS and AMSR-E.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0630.001

 

New Data added to MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR

2 November 2016

The MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with velocity maps for 2015.

These data are generated through a grant from the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0481.001

MEaSUREs Updates Antarctic Grounding Line from Differential Satellite Radar Interferometry Data Set

25 October 2016

Version 2 of Antarctic Grounding Line from Differential Satellite Radar Interferometry data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 22 years of comprehensive high-resolution mapping of grounding lines in Antarctica, derived using differential satellite synthetic aperture radar interferometry (DInSAR) data.

Data Set DOI: http://dx.doi.org/10.5067/IKBWW4RYHF1Q

MEaSUREs Releases Multi-year Greenland Ice Sheet Velocity Mosaic

30 August 2016

The Multi-year Greenland Ice Sheet Velocity Mosaic data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, contains a multi-year ice-sheet-wide velocity mosaic for Greenland derived from Interferometric Synthetic Aperture Radar (InSAR), Synthetic Aperture Radar (SAR), and Landsat 8 optical imagery data.

Data Set DOI: http://dx.doi.org/10.5067/QUA5Q9SVMSJG

New Data added to Canadian Meteorological Centre (CMC) Daily Snow Depth Analysis Data

6 April 2016

The Canadian Meteorological Centre (CMC) Daily Snow Depth Analysis Data data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with snow depth analysis data for 2015.

Data Set doi: http://dx.doi.org/10.5067/W9FOYWH0EQZ3.

New Data added to MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR

4 March 2016

The MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with velocity maps for 2013 and 2014. In addition, this update replaces all data for the Jakobshavn Isbrae, Helheim, and Kangerdlugssuaq glaciers with new maps that offer improved temporal sampling and address previous artifacts related to slope discontinuities at these glaciers’ terminii.

These data are generated through a grant from the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0481.001

MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data, Version 2 Released

9 December 2015

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has released Version 2 of MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data. This update offers users a new winter velocity map for 2009/2010 plus processing enhancements that include:

  • Additional quality control screening to remove bad data points;
  • Improved baseline fits that enhance consistency in the interior;
  • Updated error estimates that better represent the average behavior of the data;
  • The addition of ALOS fine-beam data to improve coverage
This project was funded by the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program. To obtain these data, visit MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data, Version 2 (DOI: 10.5067/IAGYM8Q26QRE).

MODIS Mosaic of Greenland 2005 Now Available

24 November 2015

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce a new data set, the MEaSUREs MODIS Mosaic of Greenland 2005 (MOG2005) Image Map. This data set consists of two digital image maps for Greenland that show surface morphology and snow grain size. The image maps are constructed from MODIS imagery acquired during 2005 and provide nearly cloud-free views of all land areas and islands larger than a few hundred meters, including the ice caps on Baffin Island, Devon Island, Axel Heiberg Island, and Ellesmere Island.

For more information, see MEaSUREs MODIS Mosaic of Greenland 2005 (MOG2005) Image Map (DOI: 10.5067/IAGYM8Q26QRE).

Greenland Ice Mapping Project Digital Elevation Model Now Available

24 November 2015

The Greenland Ice Mapping Project (GIMP) Digital Elevation Model is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, funded by NASA’s Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, consists of an enhanced resolution digital elevation model (DEM) for the Greenland Ice Sheet. The DEM was constructed by combining ASTER and SPOT 5 DEMs over the ice sheet periphery and margin with AVHRR photoclinometry for the interior and far north, and calibrating the data to mean elevations obtained by the Geoscience Laser Altimeter System (GLAS) that flew on the Ice, Cloud, and land Elevation (ICESat) satellite.

For more information and to obtain the DEM, visit MEaSURES Greenland Ice Mapping Project (GIMP) Digital Elevation Model (DOI: 10.5194/tc-8-1509-2014).

MEaSUREs Releases Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics

30 September 2015

The Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), is pleased to announce the release of a new data set.  MEaSUREs Annual Greenland Outlet Glacier Terminus Positions from SAR Mosaics provides glacier terminus positions in individual shapefiles for winter 2000–2001, annually during winters 2005–2006 to 2008–2009, and winter 2012–2013.

Data Set DOI: http://dx.doi.org/10.5067/DC0MLBOCL3EL

MEaSUREs Releases New High-Resolution Greenland SAR Mosaics

31 August 2015

The Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), is pleased to announce the release of a new data set.

MEaSUREs Greenland Ice Sheet Mosaics from SAR Data consists of the following high-resolution mosaics derived from synthetic aperture radar (SAR): uncalibrated and sigma naught calibrated C-band mosaics from RADARSAT-1 for the winters of 2000–2001, 2005–2006 through 2008–2009, and 2012–2013; and uncalibrated ALOS Phased Array type L-band Synthetic Aperture Radar (PALSAR) mosaics for the winter of 2009–2010. In addition, a RADARSAT-1 multiyear composite is available for 2000-2009. All mosaics are provided at both 100 m and 20 m resolutions.

Data Set DOI: http://dx.doi.org/10.5067/6187DQUL3FR5

Six MEaSUREs Data Sets Re-released with New Coordinate Variables

30 July 2015

The Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), is pleased to announce that six of its data sets can now be readily geolocated by popular geospatial software packages such as GDAL and Panoply. These updated data sets include two new variables that specify x and y coordinates for the projection in meters from the origin. To obtain these data, visit the following data set landing pages:

MEaSUREs Releases 100 km Weekly State of the Cryosphere Data Set

26 February 2015

The Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce the release of a new data set, MEaSUREs Northern Hemisphere State of Cryosphere Weekly 100km EASE-Grid 2.0. This data set reports the location of Northern Hemisphere snow cover and sea ice extent, the status of melt onset across Greenland and Arctic sea ice, and the level of agreement between snow cover maps derived from two different sources.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0535.001

MEaSUREs Releases Daily State of the Cryosphere Data Set

29 January 2015

The Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is pleased to announce the release of a new data set, MEaSUREs Northern Hemisphere State of Cryosphere Daily 25km EASE-Grid 2.0. This data set reports the location of Northern Hemisphere snow cover and sea ice extent, the status of melt onset across Greenland and Arctic sea ice, and the level of agreement between three different snow cover data sources.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0534.001

MEaSUREs Releases Weekly 100 km N. Hemisphere Snow Cover Data

16 December 2014

The Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), is pleased to announce the release of a new data set: MEaSUREs Northern Hemisphere Terrestrial Snow Cover Extent Weekly 100km EASE-Grid 2.0. This data set offers users weekly 100 km snow cover maps for the Northern Hemisphere, derived from the NOAA/NCDC Northern Hemisphere Snow Cover Extent Climate Data Record and satellite passive microwave brightness temperatures.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0531.001

New InSAR Ice Velocity Data for Antarctica

10 December 2014

The MEaSUREs InSAR-Based Ice Velocity of the Amundsen Sea Embayment, Antarctica data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, consists of high-resolution, digital mosaics of ice motion in the Amundsen Sea Embayment and West Antarctica, including Pine Island, Thwaites, Haynes, Pope, Smith, and Kohler glaciers. The mosaics were assembled from interferometric synthetic-aperture radar (InSAR) data acquired in 1996, 2000, 2002, and 2006-2012 by various satellites.

To view complete documentation and access the data, visit the data set Web page at http://nsidc.org/data/nsidc-0545.

Data Acknowledgements Data authors: E. Rignot, J. Mouginot, and B. Scheuchl. Data center: NSIDC DAAC (http://nsidc.org/daac) Sponsor: NASA EOSDIS (http://earthdata.nasa.gov) Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0545.001

New Greenland Surface Melt Data from NASA MEaSUREs

20 November 2014

The MEaSUREs Greenland Surface Melt Daily 25km EASE-Grid 2.0 data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, offers users a 25 km daily record of surface/near-surface melting on the Greenland Ice Sheet from 2 January 1979 to 31 December 2012.

To access the data and documentation, visit the data set Web page at http://nsidc.org/data/nsidc-0533.

Data Set DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0533.001

New MEaSUREs Daily Northern Hemisphere Snow Cover Data Set

17 September 2014

The MEaSUREs Northern Hemisphere Terrestrial Snow Cover Extent Daily 25 km EASE-Grid 2.0 data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set offers users 25 km Northern Hemisphere snow cover extent represented by four different variables. Three of the snow cover variables are derived from the Interactive Multisensor Snow and Ice Mapping System, MODIS Cloud Gap Filled Snow Cover, and passive microwave brightness temperatures, respectively. The fourth variable merges the three source products into a single representation of snow cover.

DOI: 10.5067/MEASURES/CRYOSPHERE/nsidc-0530.001

NASA MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status Extended Through 2012

6 August 2014

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has released Version 3 of the MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status data set. This release, part of NASA’s Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, extends the SMMR-SSM/I-SSMIS freeze/thaw record through 2012, corrects land/ocean mask and freeze/thaw misclassification errors over ocean dominated grid cells, and applies a revised methodology to produce data annual quality maps.

Visit the MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status, Version 3 catalog page for more information.

NASA MEaSUREs Greenland Glacier Site Velocity Maps Updated

6 August 2014

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has added new data for 2012 to the MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR data set. Part of NASA’s Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, these data now span January 2009 to December 2012.

Visit the MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR catalog page to view complete documentation and obtain the data.

Daily Arctic Sea Ice Characteristics Available for 1979-2012

23 June 2014

NSIDC has a new Arctic sea ice data set from NASA’s Making Earth System Data Records for Use in Research Environments (MEaSUREs) program: MEaSUREs Arctic Sea Ice Characterization 25 km EASE-Grid 2.0.

This data set, derived from passive microwave brightness temperatures, offers users daily Arctic sea ice locations, sea ice age, day of melt onset, and status of melt onset for the years 1979 through 2012. The data are gridded in the 25 km Equal-Area Scalable Earth Grid (EASE-Grid) 2.0 and provided as netCDF files.

To get the data visit http://nsidc.org/data/nsidc-0532/. Complete documentation is available at http://www.nsidc.org/data/docs/measures/nsidc-0532/index.html.

NSIDC Web Site and FTP Server Down for System Maintenance

29 May 2014

From 4:30 p.m. Wednesday, June 04 until noon Friday, June 06  (USA Mountain Time), our Web site and FTP server will be unavailable due to system maintenance. We apologize for any inconvenience this may cause you.

Antarctica Ice Velocity Updated with 450 m Map

10 September 2013

Investigators Eric Rignot, Jeremie Mouginot, and Bernd Scheuchl have added a 450 m resolution map to their “MEaSUREs InSAR-Based Antarctica Ice Velocity Map” data set.  NSIDC offers these data as part of NASA’s Making Earth System Data Records for Use in Research Environments (MEaSUREs) program.

Visit the data set Web page for more information and to obtain the data.

NSIDC Expands MEaSUREs Inventory

8 August 2013

NSIDC is receiving new data from MEaSUREs, NASA’s Making Earth System Data Records for Use in Research Environments Program. These offerings will expand NSIDC’s current MEaSUREs roster with new data sets related to snow, sea ice, Greenland surface melt, and more. See Current and upcoming MEaSUREs data at NSIDC for details.

MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status, Version 2 now available

7 January 2013

NSIDC has released an updated version (Version 2) of the “MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status” data set led by Principal Investigator, John Kimball, as a part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program. The updated version features an extended freeze/thaw record spanning 1979 to 2010, derived from both the Scanning Multichannel Microwave Radiometer (SMMR) and Special Sensor Microwave/Imager (SSM/I) instruments. Also included in this version are new data for the years 2002 to 2011 derived from the Advanced Microwave Scanning Radiometer – Earth Observing System (AMSR-E) instrument and the addition of data in GeoTIFF format.

For additional information, see the MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status, Version 2 Web page. If you have questions, please contact NSIDC’s User Services Office at nsidc@nsidc.org.

NSIDC MEaSUREs Publishes Updated Greenland Glacier Site Velocity Maps

18 April 2012

NSIDC has published an update to the NASA MEaSUREs program data set MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, supplying data for additional locations in Greenland. The data were produced from TerraSAR-X (TSX) image pairs collected from January to May 2009.

MEaSUREs Antarctic data products released

13 December 2011

NSIDC is pleased to announce the release of two Antarctic data sets, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program. The MEaSUREs program aims to develop consistent global and continent scale data records related to earth science, or Earth System Data Records (ESDRs).

MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status, Version 01 Data Set Released

14 October 2010

NSIDC has released MEaSUREs Global Record of Daily Landscape Freeze/Thaw Status, Version 01 (NSIDC-0477). This data set provides a global record of daily freeze/thaw status from 1988 to 2007. The data set is based on data from the Defense Meteorological Satellite Program (DMSP) Special Sensor Microwave/Imager (SSM/I).

MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data Released

13 October 2010

NSIDC has released MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data (NSIDC-0478). This data set is part of the NASA Making Earth Science Data Records for Use in Research Environments (MEaSUREs) Project.