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Description

ATL11 provides spatially organized time series of land-ice surface heights and ice-shelf locations where ICESat-2 operates in repeat-track mode (i.e., for polar ice), along with parameters useful in determining whether each height estimate is valid or a result of potential errors. ATL11 is derived from the ATLAS/ICESat-2 L3A Land Ice Height product (ATL06) and intended primarily as an input for higher-level gridded products.

Version Description

-Matched valid min/max to data type for all datasets -Updated atlas_meta and atl11_qa_util to latest versions -Corrected root file level title and description for ATL11 -Removed h_corr_CrossOver from browse plots -Removed crossing_track_data group from ATL11 -Implemented additional checks to filter ATL06 anomalies -Used least squares in reference surface for validity check

Product Summary

Platforms
ICESat-2
Instruments
ATLAS
Spatial Extent

N: 88 S: -88 E: 180 W: -180

Spatial Resolution
60 Meters
Location
POLAR
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2019-03-29 to Present
Concept ID
C3816968337-NSIDC_CPRD
Data State
ACTIVE
Number of Files/Granules
8105
Processing Level
3
Published
Science Keywords
Glacier Elevation/Ice Sheet Elevation

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Smith, B., Dickinson, S., Jelley, B., Neumann, T., Hancock, D., Lee, J., & Harbeck, K. (2025). ATLAS/ICESat-2 L3B Slope-Corrected Land Ice Height Time Series, Version 7 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ATLAS/ATL11.007 Date Accessed: 2026-01-24

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