• Due to changes in the availability of external sea ice concentration products, ATL19 v4 and ATL23 v2 data quality has experienced degradation over ice-covered regions. Reprocessed data are expected in February 2026.

Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

Data Access & Tools

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Help Articles

General Questions & FAQs

This article covers frequently asked questions about the NASA NSIDC DAAC's Earthdata cloud migration project and what it means to data users.