Data Announcement
  • Sea ice

User Notice: Data gaps and delays for multiple ATLAS/ICESat-2 L3A expedited latency “quick look” data sets

The ATLAS/ICESat-2 L3A ATL07QL, ATL08QL, ATL09QL, and ATL10QL expedited latency data sets, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), have been experiencing data gaps and delays since Monday, 19 January 2023.  NASA’s EOS Data and Operations System (EDOS) is currently investigating the issue. We apologize for any inconvenience.

The data sets, which include sea ice height, land and vegetation height, atmospheric layer characteristics, and sea ice freeboard, are typically provided to users within 3 days of satellite observation. These expedited data are part of NASA's Land, Atmosphere Near real-time Capability for EOS (LANCE) program.  

The NSIDC DAAC provides access to documentation and the Version 6 data sets from the following locations.

ATLAS/ICESat-2 L3A Sea Ice Height Quick Look (ATL07QL)
Data set DOI:
ATLAS/ICESat-2 L3A Land and Vegetation Height Quick Look (ATL08QL)
Data set DOI:

ATLAS/ICESat-2 L3A Calibrated Backscatter Profiles and Atmospheric Layer Characteristics Quick Look (ATL09QL)
Data set DOI:

ATLAS/ICESat-2 L3A Sea Ice Freeboard Quick Look (ATL10QL)
Data set DOI: