News

National Snow and Ice Data Center20h
Data set update: Sea Ice Index, Version 3
NOAA@NSIDC is pleased to announce that the Sea Ice Index, Version 3 data set, accessible through the National Snow and Ice Data Center (NSIDC), has been updated from near-real-time data to final data ...
Arctic Sea Ice22h
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 Ice1d
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 Ice2d
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 Ice2d
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 Ice1d
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 Ice2d
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 Ice3d
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 Ice3d
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 Ice7d
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 Ice9d
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 Ice5d
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, ...