IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles

The documentation for this data set is currently under construction and will be available in the near future. If you have any questions regarding this data set, please contact NSIDC User Services Office either by filling out a contact form, by e-mail to nsidc@nsidc.org, or by telephone at +1 303-492-6199.

The NASA IceBridge Snow Radar Level-1B Geolocated Radar Echo Strength Profiles (IRSNO1B) data set contains snow thickness and internal layer measurements taken from the Center for Remote Sensing of Ice Sheets (CReSIS) ultra wide-band snow radar over land and sea ice in Greenland, the Arctic, and Antarctica. The data were collected as part of Operation IceBridge funded campaigns, and are stored in binary, MATrix LABoratory (MATLAB), Joint Photographic Experts Group (JPEG), and Keyhole Markup Language (KML) files, and are available for periodic, ongoing campaigns from 31 March 2009 to the present via FTP.

Notes on 2009 data:

• The Antarctica data for 20 October 2009 and 03 November 2009 are not included in this dataset.
• As of June 10, 2011, the 2009 Greenland *.bin files were replaced. The GPS time written in the headers of the previously published *.bin files contained an error. The error is corrected in the current *.bin files. If you downloaded the 2009 Greenland data prior to June 10, 2011, we suggest you re-download the *.bin files.
• As of July 19, 2011, the following changes were made to files in the 2009 Greenland file directory folder: /IRSNO1B_SnowRadarXyEcho_v01/2009_GR_NASA/04022009/. Files data00.0005 thru data00.0020 were replaced. Files data00.0001 through data00.0004 were removed, as the recording on the radar froze. Files in directory folder /20090402_2/ were not altered in any way. If you downloaded the 2009 Greenland data prior to July 19, 2011, we suggest you re-download the /04022009/ folder.

NSIDC provides a MATLAB reader that reads IceBridge Snow Radar binary files and prints the records to standard output.

The directory structure for this data set is described in the 00READMEV01.2.txt file.

For more information, please refer to the following files:

• README.txt
• Antarctica2009_SnowRadar.pdf
• Greenland2009_SnowRadar.pdf
• Greenland_2010_snow_radar.pdf

See the CReSIS Web page for more on the Snow Radar instrument.