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Data Set ID:

IceBridge ATM L2 Icessn Elevation, Slope, and Roughness, Version 2

This data set contains resampled and smoothed elevation measurements of Arctic and Antarctic sea ice, and Greenland, Antarctic Peninsula, and West Antarctic region land ice surface acquired using the NASA Airborne Topographic Mapper (ATM) instrumentation. The data were collected as part of Operation IceBridge funded aircraft survey campaigns.

Version Summary:

Version 2 ILATM2 data are in Comma Separated Value (CSV) ASCII format. A header has been added to the Version 2 data format. In Version 1, the ILATM2 data set consisted of pairs of files for each data segment: one data file and one summary file. The header of the Version 2 data file contains information that had appeared in the summary file, making the summary file redundant.

Geographic Coverage

Data Set Tabs

Spatial Coverage:
  • N: -53, S: -90, E: 180, W: -180

  • N: 90, S: 60, E: 180, W: -180

Spatial Resolution:
  • Varies x Varies
Temporal Coverage
  • 31 March 2009
(updated 2016)
Temporal Resolution:
  • Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
  • Sea Ice > Ice Roughness
C-130, DC-8, HU-25C, P-3B
Sensor(s): ATM
Data Format(s):
  • Comma-Separated Values (.csv)
  • XML
Data Contributor(s): William Krabill

Data Citation

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

Krabill, W. B. 2014, updated 2016. IceBridge ATM L2 Icessn Elevation, Slope, and Roughness, Version 2. [indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. [Date Accessed].

Questions? Please contact:

NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA