Data Announcements
News and tips for data users
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The MEaSUREs Greenland 6 and 12 day Ice Sheet Velocity Mosaics from SAR, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated. Sentinel-1C data has been added, and the temporal coverage has been extended to 27 December 2025. Also note: Changes in cloud storage protocols necessitated a minor change to the file naming convention.
The SnowEx23 Oct23 IOP Snow Pits and Substrate Conditions at Freeze Up, 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 presents snow pit measurements collected during the NASA SnowEx October 2023 Intensive Observation Period in Alaska, USA. Three study areas represented boreal forest snow near Fairbanks, AK: Farmers Loop Creamers Field, Caribou Poker Creek Research Watershed, and Bonanza Creek Experimental Forest.
The RapidScat Twice-Daily SIR-Enhanced EASE-Grid 2.0 Radar Backscatter, 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 provides Ku-band radar backscatter measurements of Sigma Nought (σ⁰, Sigma0) collected by RapidScat’s SeaWinds scatterometer flown aboard the International Space Station between October 2014 and August 2016.
The data producer for Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 2 data set has stopped forward processing. The final temporal coverage for the data is 26 October 1978 to 31 December 2025. The data will remain available for download as a static product at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
The MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 4 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated. New data have been added, and the temporal coverage now spans from 01 January 2015 to 27 December 2025. This data set is part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program.
This is a reminder that the GoLIVE Map Application will be retired on June 30, 2026 as part of NSIDC DAAC’s software decommissioning work. After June 30, 2026, the GoLIVE Map Application will no longer be available.The underlying GoLIVE dataset is not being retired and will remain available through the NSIDC dataset landing page and standard access/download options: https://nsidc.org/data/nsidc-0710/versions/2
The ATLAS/ICESat-2 L3A Ocean Surface Height, Version 7, ATLAS/ICESat-2 L3B Monthly Gridded Dynamic Ocean Topography, Version 4, and ATLAS/ICESat-2 L3B Monthly 3-Month Gridded Dynamic Ocean Topography, Version 2 data sets, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), have been reprocessed to correct for over-averaging of bright lead inputs from ATL07, thus improving the pol
The National Snow and Ice Data Center (NSIDC) has retired the following data sets, and access to these versions has been removed:NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 5Near-Real-Time NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 3Please use the latest versions instead:
Crossing-Track Data for ATLAS/ICESat-2 L3B Slope-Corrected Land Ice Height Time Series, Version 7 is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
ATLAS/ICESat-2 L3B Gridded Sea Ice Freeboard Quick Look, Version 5 is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains rolling 30-day gridded estimates of sea ice freeboard, derived from ATLAS/ICESat-2 L3A Sea Ice Freeboard Quick Look (ATL10QL) along-track freeboard estimates.Data set DOI: https://doi.org/10.5067/ATLAS/ATL20QL.005
The GoLIVE Map Application (https://nsidc.org/app/golive) will be retired on June 30, 2026 as part of NSIDC DAAC’s software decommissioning work. After June 30, 2026, the GoLIVE Map Application will no longer be available; however, the underlying GoLIVE dataset is not being retired and will remain available through the NSIDC dataset landing page and standard download paths.
Antarctic Grounding Lines From COSMO-SkyMed X-Band DInSAR, 2020–2022, Version 1 is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
The NIVAL Mores Creek Summit Snow Depth, Canopy Height, and DTM from Airborne LiDAR, 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 provides digital terrain models, digital surface models, snow depth, and canopy height models, derived from point cloud data acquired by airborne lidar scanning over a region of the Mores Creek Headwaters in the Boise Mountains of central Idaho.
ATLAS/ICESat-2 L3A Along Track Coastal and Nearshore Bathymetry, Version 2 is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains global along-track coastal and nearshore bathymetry, consisting of refraction-corrected seafloor and sea surface heights (orthometric and ellipsoidal heights and instantaneous depths), as well as associated uncertainties.
ICESat-2 Cal/Val 2022 L2 CHIR NIR Lidar Arctic Sea Ice Heights, Version 1 is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains Arctic summer sea ice heights acquired using the Leica Chiroptera 4X (CHIR) airborne lidar system. The near-infrared (NIR) lidar data were acquired during a July 2022 calibration/validation airborne campaign to evaluate the positional accuracies of NASA’s ICESat-2 ATLAS measurements.
The Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 2, and Near-Real-Time DMSP SSMIS Daily Polar Gridded Sea Ice Concentrations, Version 2 data sets will be retired from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) on 18 June 2026. After this date, access to the data will no longer be available, but the data set documentation will remain available for future reference.
The Nenana Ice Classic: Tanana River Ice Annual Breakup Dates, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated with the latest ice breakup date and time for 2026.
The MEaSUREs Greenland Ice Velocity: Selected Glacier Site Single-Pair Velocity Maps from Optical Images, Version 1 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated. New data have been added for the year 2025, extending the temporal coverage to 31 December 2025.
The SnowEx20 Airborne SWESARR Backscatter Intensity Raw, Version 1 (SNEX20_SWESARR_Raw) and SnowEx20 Grand Mesa IOP FMCW Radar Autopicked Snow Depths, Version 1 (SNEX20_FMCW_SD) data sets are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The SNEX20_SWESARR_Raw data set contains raw airborne microwave observations from the Goddard Space Flight Center SWESARR instrument.
The DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 6 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated through 5 April 2026. This data set provides daily gridded brightness temperatures derived from passive microwave sensors and distributed in a polar stereographic projection.