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Description

This data set (ATL12) contains along-track sea surface height of the global open ocean, including the ice-free seasonal ice zone and near-coast regions. Estimates of height distributions, significant wave height, sea state bias, and 10 m heights 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

Changes for Version 6 are as follows:
  • Fixed an error in the surface type percentage calculation
  • Updated the ATL12 template
  • Added several parameters for quality assessment

Product Summary

Platforms
ICESat-2
Instruments
ATLAS
Spatial Extent

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

Location
GLOBAL OCEAN
Coordinate System
CARTESIAN
Granule Spatial Representation
ORBIT
Temporal Extent
2018-10-13 to 2025-03-02
Concept ID
C2613553216-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
8605
Processing Level
3
Published
Science Keywords
Sea Surface Height

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

Morison, J., Hancock, D., Dickinson, S., Robbins, J., Roberts, L., Kwok, R., Palm, S., Smith, B., Jasinski, M., & Team, T. I. C. E. S.-2 S. (2023). ATLAS/ICESat-2 L3A Ocean Surface Height, Version 6 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ATLAS/ATL12.006 Date Accessed: 2026-01-20

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