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Description

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.

Version Description

For Version 2 of this data set, the following changes were made: -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 IRTIT3_20110413_Russell.nc and IRTIT3_20130420_Humboldt.nc; added CF1.7-compliant geolocation variables/attributes for improved usability (polar_stereographic grid mapping variable and x and y coordinates of projection). These changes enable automatic geolocation in software such as QGIS. -Changed the no-data flag value from -10000 to NaN.

Product Summary

Platforms
DC-8 ,
P-3B
Instruments
MCoRDS
Projects
2010_AN_NASA ,
2011_GR_NASA ,
2012_GR_NASA ,
2013_GR_NASA ,
OIB
Spatial Extent

N: 83 S: 59 E: -12 W: -74

,

N: -63 S: -90 E: 180 W: -180

Spatial Resolution
25 Meters x 25 Meters
Spatial Reference System(s)
Multiple EPSG codes (see User Guide)
Location
ANTARCTICA ,
GREENLAND
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2010-11-20 to 2013-04-20
Temporal Resolution
Varies
Concept ID
C3205192843-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
5
Processing Level
3
Published
Science Keywords
Bed Elevation ,
Glacier/Ice Sheet Thickness

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

Wu, X. (2019). IceBridge Radar L3 Tomographic Ice Thickness, Version 2 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/5NSX14QW4U4J Date Accessed: 2026-09-15

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