Get Data

IceBridge Portal: Tool to visualize, search, and download IceBridge data.
Reverb: NASA search and order tool for subsetting, reprojecting, and reformatting data.

NOTE: Reverb will be decommissioned in the coming months and replaced with Earthdata Search. All links to Reverb will be removed at that time.
IceBridge Portal: Tool to visualize, search, and download IceBridge data.
Earthdata Search: NASA's newest search and order tool for subsetting, reprojecting, and reformatting data.
Data Set ID:
ILNSA1B

IceBridge Narrow Swath ATM L1B Elevation and Return Strength, Version 2

This data set contains spot elevation measurements of Greenland, Arctic, and Antarctic sea ice acquired using the NASA Airborne Topographic Mapper (ATM) 4CT3 narrow scan instrumentation. The data were collected as part of Operation IceBridge funded aircraft survey campaigns.

Version Summary:

Version 2 data are in HDF5 format beginning with the 2013 Arctic campaign.

Version 1 data are in Qfit binary format for 2012 and earlier campaigns.

  • Beginning with the 2013 Greenland campaign, the data file format is HDF5.
  • Qfit data files for all previous campaigns are to be replaced with HDF5 files.
  • The data set title (longname) changes from "IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength" to "IceBridge Narrow Swath ATM L1B Elevation and Return Strength".

Geographic Coverage

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

  • N: 90, S: 60, E: 180, W: -180

Spatial Resolution:
  • 2 m x 2 m
Temporal Coverage:
  • 20 March 2013
(updated 2016)
Temporal Resolution: Varies
Parameter(s):
  • Sea Ice > Sea Ice Elevation
Platform(s) C-130, DC-8, HU-25C, P-3B
Sensor(s): ATM, Narrow Swath ATM
Data Format(s):
  • HDF5
  • XML
Version: V2
Data Contributor(s): William Krabill

Data Citation

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.

Krabill, W. B. 2014, updated 2016. IceBridge Narrow Swath ATM L1B Elevation and Return Strength, Version 2. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: http://dx.doi.org/10.5067/CXEQS8KVIXEI. [Date Accessed].