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Description

This data set (ATL10) contains estimates of sea ice freeboard, calculated using three different approaches. Sea ice leads used to establish the reference sea surface and descriptive statistics used in the height estimates 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.

Version Description

Implemented improved filtering of outliers in estimates of reference surface heights prior to freeboard calculations; Added statistical parameters from ATL07 to the /gtx/freeboard_beam_segment/height_segments/ group; Updated the beam freeboard heights and sigma computations to use a weighted mean instead of calculating a simple average; The equilibrium tide is now read from the ATL07 product and written as a reference value to the geophysical group (/gtx/freeboard_beam_segment/geophysical/).

Product Summary

Platforms
ICESat-2
Instruments
ATLAS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Reference System(s)
WGS 84 (EPSG:4326)
Location
NORTHERN HEMISPHERE ,
SOUTHERN HEMISPHERE
Coordinate System
CARTESIAN
Granule Spatial Representation
ORBIT
Temporal Extent
2018-10-14 to 2019-11-15
Temporal Resolution
91 Day
Concept ID
C4115899320-NSIDC_CPRD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
3
Published
Science Keywords
Freeboard

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

Kwok, R., Cunningham, G., Markus, T., Hancock, D., Morison, J., Palm, S., Farrell, S., Ivanoff, A., Wimert, J., & Team, T. I. C. E. S.-2 S. (2019). ATLAS/ICESat-2 L3A Sea Ice Freeboard, Version 2 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ATLAS/ATL10.002 Date Accessed: 2026-05-27

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