Data Announcements

The MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), experienced a processing error from December 2021 to present. Forward processing of the data is paused until reprocessing is complete. An additional user notice will be sent when the reprocessed data become available and forward processing resumes.

The MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, Version 4 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated. This update extended the temporal coverage through 28 January 2023, with new data files for the period spanning 5 August through 20 October 2022.

The Arctic and Antarctic Regional Masks for Sea Ice and Related Data Products, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data product is a set of polar ocean region masks. The masks have been developed primarily to support sea ice products, but they are potentially useful for other applications.

The Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 4 data set will be retired from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) on 28 February 2023. Access to the data will no longer be available, but the data set documentation will remain available for future reference.

The MEaSUREs ITS_LIVE Antarctic Grounded Ice Sheet Elevation Change, 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 is produced under the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program. It provides monthly elevation change data for the Antarctic Ice Sheet from 17 April 1985 to 16 December 2020.

Temporal updates for the MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 4 and MEaSUREs Greenland 6 and 12 day Ice Sheet Velocity Mosaics from SAR, Version 2 data sets are now available through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

The SnowEx21 Senator Beck Basin and Grand Mesa, CO AVIRIS-NG Surface Spectral Reflectance, Version 1 (SNEX21_SSR) data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set provides apparent surface spectral reflectance imagery which demonstrates snow albedo and snow optical property evolution across two distinct snow-covered environments in Colorado.

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 January 2023. This data set provides daily gridded brightness temperatures derived from passive microwave sensors and distributed in a polar stereographic projection.

The ATLAS/ICESat-2 L3A Calibrated Backscatter Profiles and Atmospheric Layer Characteristics (ATL09), Version 5 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), experienced a processing error for files with dates from 10 August through 12 October 2022.

The ATLAS/ICESat-2 L3A ATL07QL, ATL08QL, ATL09QL, and ATL10QL expedited latency data sets, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), have been experiencing data gaps and delays since Monday, 19 January 2023.

MODIS Collection 6 will cease forwarding processing as of 15 February 2023.  Data for C6.0 will remain available until Spring of 2023, but the NSIDC encourages users to switch to the newer Collection 6.1 data.  The NSIDC DAAC provides access to the MODIS data and documentation at the following location: NSIDC DAAC MODIS Data Collection.

The MEaSUREs Grounding Zone of the Antarctic Ice Sheet, 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 is produced under the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program.

This data set, available through the NASA NSIDC DAAC, experienced a processing error for files with dates from 10 August through 12 October 2022.

The ATL07QL, ATL08QL, ATL09QL, and ATL10QL data sets, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), have updated to Version 6.

The ATL07QL, ATL08QL, ATL09QL, and ATL10QL data sets, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), will be updating from Version 5 to Version 6. On 17 January 2023, ATL07QL, ATL08QL, ATL09QL, ATL10QL Version 5 data will no longer be added, creating a gap in the “quick look” temporal coverage until Version 6 data are released on 19 January 2023.

The SMAP Radar Twice-Daily SAR and SIR-Enhanced Scatterometer 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 contains twice-daily synthetic aperture radar (SAR) and enhanced-resolution scatterometer radar backscatter derived from SMAP radar data from 13 April 2015 to 5 July 2015.

Updates to Version 5 of the ATLAS/ICESat-2 L3A Along Track Inland Surface Water Data Quick Look (ATL13QL) data set will end on 17 January 2023 creating a gap in the temporal coverage of the quicklook data set until Version 6 of this data set is released. An estimated release date for Version 6 of ATL13QL is not currently available.

The Global PyGEM-OGGM Glacier Projections with RCP and SSP Scenarios, 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 comprises results from a hybrid glacier evolution model that uses the mass balance module of the Python Glacier Evolution Model (PyGEM) and the glacier dynamics module of the Open Global Glacier Model (OGGM).

Two IceBridge data products from the NSIDC DAAC have been updated to include data from the 2019 Arctic and Antarctic campaigns.

The MEaSUREs Weekly-To-Monthly Greenland Outlet Glacier Terminus Positions From Sentinel-1 Mosaics, 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 is part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program. It consists of ice front positions for 219 outlet glaciers in Greenland from 01 January 2015 through 31 December 2021.