• On 16 April 2025, the “Order Files” option of NSIDC DAAC’s Data Access Tool was retired and replaced with Earthdata Download. Earthdata Download is a native desktop application that enables efficient direct download for orders of any size. To use this new download option, you must install the new version release of Earthdata Download (v1.0.4) available here: https://nasa.github.io/earthdata-download/.
    Additionally, the “Order History” page (https://nsidc.org/order-history) will also be removed two weeks after this update, on 30 April 2025.

Data Access Tool

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Selected Data Set Information

Note: To select a different data set, close this window (or tab) and navigate to the data set landing page you want.

Data Set:
ATLAS/ICESat-2 L3A Sea Ice Height Quick Look, Version 6
Data Set ID:
ATL07QL
Data Set Summary:
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 (at varying length scales) relative to the WGS84 ellipsoid (ITRF2014 reference frame) after adjustment for geoidal and tidal variations and inverted barometer effects. Height statistics and apparent reflectance are also provided. The data were acquired by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) observatory.