For further information, please see our Please note that gaps in the DMSP SSMIS data, which began in late spring of 2025 when the DoD deprioritized SSMIS data processing, may continue through the end ...

The following data set will continue to provide SSMIS data, along with AMSR2 data: ...

NOAA@NSIDC is pleased to announce the release of Sea Ice Index, Version 4. This new version uses input data from the JAXA GCOM-W1 AMSR2 instrument for 1 January 2025 through forward processing. Input ...

All NSIDC DAAC data, including SMAP data sets, in NASA Earthdata Cloud can be accessed via HTTPS through https://cmr.earthdata.nasa.gov/search/site/collections/directory/NSIDC_CPRD/gov.nasa.eosdis .

We use cookies to provide our site securely and reliably; and to collect anonymized analytics to understand site usage and report to our grant funders on our impact. For further information, please ...

The international Arctic Rain on Snow Study (AROSS), led by NSIDC, focuses on the effects of a growing problem in the Arctic. With increasing frequency, rain falls on snow, refreezes, and forms an icy ...

Describing subset: When applicable, include the information a reader would need to extract the same subset at the end of your citation. If multiple or complex steps were incolved, it may be more ...

Dear data users, NSIDC does not archive or provide citation guidance for these data. This map depicts the distribution, characteristics, and boundaries of permafrost and ground ice in Canada.

Access to SMAP data sets in the legacy, on-premises archive at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) will be retired on 28 October 2025. The NASA ...

A prolonged period of extensive ice sheet melting from roughly July 7 to July 20 tipped the 2025 melt season to above the 1981 to 2010 average for total melt-day extent (Figure 1a). Through July 20, ...

Surface melting on the Greenland Ice Sheet is on a slightly above-average track for the 2025 melt season, with melt along the western coast leading the way. Overall, total melt-day extent as of June ...

The SnowEx23 Bonanza Creek Experimental Forest Terrestrial Lidar Scans, Version 1 and SnowEx23 Bonanza Creek Experimental Forest Terrestrial Lidar Scans Raw, Version 1 data sets are now available at ...