News

National Snow and Ice Data Center11d
User notice: OpenAltimetry performance updates - Improved Map Interface and Data Rendering
Future improvements include the transition of OpenAltimetry to ICESat-2 v007 data, which is expected to bring additional performance improvements through cloud optimization.
Arctic Sea Ice1d
ATLAS/ICESat-2 L3A Calibrated Backscatter Profiles and Atmospheric Layer Characteristics, Version 6 - National Snow and Ice Data Center
This data set (ATL09) contains calibrated, attenuated backscatter profiles, layer integrated attenuated backscatter, and other parameters including cloud layer height and atmospheric characteristics ...
Arctic Sea Ice2d
ATLAS/ICESat-2 L3A Sea Ice Height Quick Look, Version 6
ATL07QL is the quick look version of ATL07. Once final ATL07 files are available, the corresponding ATL07QL files will be removed. ATL07 contains along-track heights for sea ice and open water leads ...
Arctic Sea Ice3d
SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data, Version 8
SMAP Level-4 (L4) surface and root zone soil moisture (L4_SM) data are provided in three products. The SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data ...
Arctic Sea Ice3d
SMAP L4 Global Daily 9 km EASE-Grid Carbon Net Ecosystem Exchange, Version 8 | National Snow and Ice Data Center
The Level-4 (L4) carbon product (SPL4CMDL) provides global gridded daily estimates of net ecosystem carbon (CO2) exchange derived using a satellite data based terrestrial carbon flux model informed by ...
Arctic Sea Ice3d
SnowEx20 Grand Mesa In Situ Dielectric Soil Moisture, Version 1 - National Snow and Ice Data Center
This data set consists of soil moisture and soil temperature measurements taken during the SnowEx 2020 field campaign. Soil moisture probes were deployed at 10 stations within the Colorado Grand Mesa ...
Arctic Sea Ice3d
Lake Untersee, Antarctica Climate Data, Version 1
As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility. Other ...
Arctic Sea Ice4d
High Mountain Asia PyGEM Glacier Projections with RCP Scenarios, Version 1 - National Snow and Ice Data Center
As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility. Other ...
Arctic Sea Ice4d
ATLAS/ICESat-2 L3A Land Ice Height, Version 3 - National Snow and Ice Data Center
This data set (ATL06) provides geolocated, land-ice surface heights (above the WGS 84 ellipsoid, ITRF2014 reference frame), plus ancillary parameters that can be used to interpret and assess the ...
Arctic Sea Ice8d
ATLAS/ICESat-2 L3A Along Track Coastal and Nearshore Bathymetry, Version 1
ATL24 provides global along-track coastal and nearshore bathymetry, consisting of refraction-corrected seafloor and sea surface heights (orthometric and ellipsoidal heights and instantaneous depths), ...
Arctic Sea Ice10d
Looking for the Operation IceBridge Portal?
The Operation IceBridge Portal was retired on June 25, 2025, as part of NSIDC DAAC's transition to NASA Earthdata Cloud.
Arctic Sea Ice6d
Glacial and Fast Ice Distributions in Southeast Greenland Fjords, Version 1 | National Snow and Ice Data Center
This data set provides spatial distributions of fast ice and glacial ice in eight fjords spanning the Southeast Greenland coast: Nansen, Kangerlusruaq, Ikertivaq, Skjoldungen, Tingmiarmiut, ...