IceBridge Radar L3 Tomographic Ice Thickness, Version 2
Data set id:
IRTIT3
DOI: 10.5067/5NSX14QW4U4J
This is the most recent version of these data.
Version Summary
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 IRTIT3_20110413_Russell.nc and IRTIT3_20130420_Humboldt.nc.
* 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.
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 IRTIT3_20110413_Russell.nc and IRTIT3_20130420_Humboldt.nc.
* 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.
Overview
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.
Parameter(s):
BED ELEVATIONGLACIER/ICE SHEET THICKNESS
Platform(s):
DC-8, P-3B
Sensor(s):
MCoRDS
Data Format(s):
NetCDF
Temporal Coverage:
20 November 2010 to 20 April 2013
Temporal Resolution:
- Varies
Spatial Resolution:
- 50 m
- 50 m
Spatial Reference System(s):
WGS 84 / Antarctic Polar Stereographic
EPSG:3031
WGS 84 / NSIDC Sea Ice Polar Stereographic North
EPSG:3413
Spatial Coverage:
N:
83
S:
59
E:
-12
W:
-74
N:
-63
S:
-90
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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Documentation
Help Articles
How to Articles
Many NSIDC DAAC data sets can be accessed using the NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface.Users have the option to
Harmony API Quickstart Guide: Customizing NASA NSIDC DAAC data in Earthdata Cloud
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.
All data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is directly accessible through our HTTPS file system using Wget or curl. This article provides basic command line instructions for accessing data using this method.