Data Set ID: 

IceBridge Radar L3 Tomographic Ice Thickness, Version 2

This data set contains Level-3 tomographic ice thickness measurements and ice thickness errors over areas of Greenland and Antarctica. Two of the data files additionally provide bed elevation measurements. The data were derived from measurements taken by the Center for Remote Sensing of Ice Sheets (CReSIS) Multichannel Coherent Radar Depth Sounder (MCoRDS) instrument and were collected as part of NASA Operation IceBridge funded campaigns.

This is the most recent version of these data.

Version Summary: 

For Version 2 of this data set, the following changes were made:

1. Converted data files from HDF5 to netCDF4 format, with the following data structure revisions:
* Renamed the parameter dataset0 to ice_thickness.
* Added the parameter thickness_err.
* Added the parameter bed_elevation to the files and
* Added the following CF1.7-compliant geolocation variables/attributes for improved usability: polar_stereographic (grid mapping variable); x and y (coordinates of projection). Enables automatic geolocation in software such as QGIS.
2. Changed the no-data flag value from -10000 to NaN.

BASIC Level of Service

Data: Data integrity verified

Documentation: Key metadata and links to supporting documentation available

User Support: Assistance with data access and basic data usage

See All Level of Service Details

Data Format(s):
  • NetCDF
Spatial Coverage:
N: -63, 
N: 83, 
S: -90, 
S: 59, 
E: 180, 
E: -12, 
W: -180
W: -74
Platform(s):DC-8, P-3B
Spatial Resolution:
  • 50 m x 50 m
Temporal Coverage:
  • 20 November 2010 to 20 April 2013
Temporal ResolutionVariesMetadata XML:View Metadata Record
Data Contributor(s):Xiaoqing Wu

Geographic Coverage

Other Access Options

Other 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.

Wu, X. 2019. IceBridge Radar L3 Tomographic Ice Thickness, Version 2. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: [Date Accessed].

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No technical references available for this data set.

How To

Programmatic Data Access Guide
Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system or through our Application Programming Interface (API). Our API offers you the ability to order data using specific temporal and spatial filters... read more
Filter and order from a data set web page
Many NSIDC data set web pages provide the ability to search and filter data with spatial and temporal contstraints using a map-based interface. This article outlines how to order NSIDC DAAC data using advanced searching and filtering.  Step 1: Go to a data set web page This article will use the... read more
How do I convert an HDF5/HDF-EOS5 file into binary format?
To convert HDF5 files into binary format you will need to use the h5dump utility, which is part of the HDF5 distribution available from the HDF Group. How you install HDF5 depends on your operating system. Full instructions for installing and using h5dump on Mac/Unix and... read more