On Wednesday, July 28 from 8:00 a.m. to 4:00 p.m. (USA Mountain Time), the following data collections may not be available due to planned system maintenance: AMSR-E, Aquarius, High Mountain Asia, IceBridge, ICESat/GLAS, ICESat-2, MEaSUREs, MODIS, NISE, SMAP, SnowEx, and VIIRS.
Data Set ID: 
ATL06

ATLAS/ICESat-2 L3A Land Ice Height, Version 2

This data set (ATL06) provides geolocated, land-ice surface heights (above the WGS 84 ellipsoid, ITRF2014 reference frame), plus ancillary parameters that can be used to interpret and assess the quality of the height estimates. 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.

There is a more recent version of these data.

Version Summary: 

Changes for this version include:

  • The Arctic and Antarctic DEMs were changed to utilize sources that have more recent and accurate data and better coverage.
  • The num_tx_pulses calculation was changed to estimate an expected number of pulses that is not an integer. As such, the input used to calculate num_tx_pulses was changed to a floating point value (the output of the unified pulse count estimation).
  • A single algorithm was implemented to estimate the number of pulses within a specified distance, and this single routine was integrated into the rest of the land ice height development code.
  • Equilibrium tide values from ATL03 have been added to the geophysical group (gt[x]/land_ice_segments/geophysical/tide_equilibrium).
Parameter(s):
  • GLACIERS/ICE SHEETS > GLACIER ELEVATION/ICE SHEET ELEVATION
Data Format(s):
  • HDF5
Spatial Coverage:
N: 90, 
S: -90, 
E: 180, 
W: -180
Platform(s):ICESat-2
Spatial Resolution:
  • 20 m
Sensor(s):ATLAS
Temporal Coverage:
  • 14 October 2018 to 15 November 2019
Version(s):V2
Temporal Resolution91 dayMetadata XML:View Metadata Record
Data Contributor(s):Ben Smith, Helen Fricker, Alex Gardner, Matthew Siegfried, Susheel Adusumilli, et al

Geographic Coverage

No access options.

As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Smith, B., H. A. Fricker, A. Gardner, M. R. Siegfried, S. Adusumilli, B. M. Csathó, N. Holschuh, J. Nilsson, F. S. Paolo, and the ICESat-2 Science Team. 2019. ATLAS/ICESat-2 L3A Land Ice Height, Version 2. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: https://doi.org/10.5067/ATLAS/ATL06.002. [Date Accessed].

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How To

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FAQ

What subsetting and reformatting services are available for ICESat-2 data?
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