Data Announcements

The Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated to Version 3. The following changes were made to this version of data:

Version 1 of the VIIRS/NPP Sea Ice Cover 6-Min L2 Swath 375 m (VNP29) data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has published a new data set: Greenland Annual Accumulation along the EGIG Line, 1959–2004, from Airborne Radar and Neutron Probe Densities. This data set reports mean annual snow accumulation rates (meters water equivalent) at 3 meter intervals along a 250 km segment of the Expéditions Glaciologiques Internationales au Groenland (EGIG) line.

The beta version of the SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). L-band radiometer measurements from the SMAP satellite and C-band radar measurements from the European Space Agency (ESA) Copernicus Sentinel-1 satellite are combined to produce high-resolution soil moisture estimates for this product. The SMAP Science Data System (SDS) began forward processing for the data on 27 October 2017.

The NASA IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated through 18 November 2016. Data Set DOI: https://doi.org/10.5067/D7DX7J7J5JN9

The NASA IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated through 18 November 2016. Data Set DOI: https://doi.org/10.5067/FAZTWP500V70

The September 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: https://doi.org/10.5067/GPVL3SACPBW4

The Daily Global Land Parameters Derived from AMSRE and AMSR2, Version 2 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The Version 2 data were processed for the complete AMSRE operational record (19 June 2002 to 4 October 2011) and part of the AMSR2 record (24 July 2012 to 30 June 2017), with planned updates and LPDR continuity enabled from continuing AMSR2 operations.

NOAA@NSIDC is pleased to announce the release of Sea Ice Index Version 3 (V3). V3 changes the way the monthly average area and extent data values are calculated. The way monthly average area and extent images are created remains the same as in V2. All daily data remain the same as in V2. The V3 method simply averages daily extent values, while the V2 method derived monthly average values from the gridded monthly-average concentration field.

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.

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:

The NASA Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) brings efficiency to your scientific workflow through its ability to subset, reformat, and reproject Earth science data in one step.

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: https://doi.org/10.5067/GPVL3SACPBW4

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.

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/.

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).

NASA SnowEx17 SnowMicroPen (SMP) Raw Penetration Force Profiles data are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains raw penetration force profiles measured at snow pits and along linear transects at Grand Mesa, Colorado using the SMP, a digital snow penetrometer. Data Set DOI: https://doi.org/10.5067/ZPOLBRHVWG5V

NASA IceBridge BedMachine Greenland Version 3 data are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). Version 3 includes ocean bathymetry all around Greenland based on data from NASA’s Ocean Melting Greenland (OMG) and other campaigns of bathymetry measurements. The subglacial bed topography has also been updated by including more ice thickness data and constraining the ice thickness at the ice/ocean interface based on bathymetry data when available.

NASA IceBridge MCoRDS L2 Ice Thickness data for 2016 Antarctica are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains depth sounder measurements of elevation, surface, bottom, and thickness for Greenland and Antarctica taken from the Multichannel Coherent Radar Depth Sounder (MCoRDS). Data Set DOI: https://doi.org/10.5067/GDQ0CUCVTE2Q.

The NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles, Version 2 data set now includes data for the 2016 Antarctica campaign. This data set contains radar echograms taken from the Center for Remote Sensing of Ice Sheets (CReSIS) ultra Multichannel Coherent Radar Depth Sounder (MCoRDS) over land and sea ice in the Arctic and Antarctic. Data set DOI: https://doi.org/10.5067/90S1XZRBAX5N