This data set (ATL15) and ATL14 bring the time-varying height estimates provided in ATLAS/ICESat-2 L3B Annual Land Ice Height (ATL11) into a gridded format. ATL14 provides a high resolution (100 m) ...

The left map illustrates the cumulative melt days on the Greenland Ice Sheet for the 2025 melt season through June 30. The ...

The SSMIS data are used as input for this NSIDC-produced data set, which will therefore stop processing after 31 July 2025.

These data sets provide daily files of brightness temperature data and sea ice concentrations for both the Northern and Southern Hemispheres. These data products serve as a replacement for the ...

This data set provides raw lidar data from two regions of Alaska, USA collected as part of the NASA SnowEx 2023 field campaign. The study sites include a boreal forest environment in the Fairbanks ...

These data are reconstructed seasonal Antarctic sea ice extent (SIE) for 1905 through 2020. They are provided along with uncertainty estimates and metadata that describe aspects of the reconstruction ...

The NSIDC DAAC SMAP data collection includes data products derived from an L-band radiometer and high-resolution L-band radar instrument that make up the orbiting observatory of the Soil Moisture ...

The NSIDC DAAC Advanced Microwave Scanning Radiometer - Earth Observing System sensor (AMSR-E) collection includes passive microwave data products related to sea ice concentration, sea ice motion, sea ...

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 ...

Note: To select a different data set, close this window (or tab) and navigate to the data set landing page you want. This global Level-3 (L3) data set provides the maximum snow cover extent observed ...

Note: To select a different data set, close this window (or tab) and navigate to the data set landing page you want. This data set contains 50 m gridded snow water equivalent (SWE) values collected as ...

Updated photon heights to include time-dependent range bias. The mean offset between ATL03 version 4 and version 5 photon heights is on the order of 1.2 cm. See more details in the user guide and/or ...