IceBridge POS/AV L1B Corrected Position and Attitude Data

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.

NOTE to users who have downloaded the IceBridge POS/AV L1B Corrected Position and Attitude Data prior to January 25, 2011:
As of 25 January 2011 these data have been updated to Version 01.1. Version 01.1 contains POS/AV data collected by the Applanix System connected to the DMS instrument. Prior to Version 01.1, the data were obtained from the Applanix System connected to the ATM instrument. There were no problems with the ATM version of the data, but the data were only available for flights on which ATM was operational. The DMS version is now in use for the sake of completion across all instruments.

The directory structure for this data set is described in the 00READMEV01.1.txt file.

NSIDC provides two Applanix SBET file readers, and one MATLAB reader:

• The Perl reader reads a binary SBET file and writes the data to standard output.
• The C reader extracts only the latitude, longitude and altitude data from an SBET binary file, and outputs another binary file that can be modified for various purposes, for example to output ASCII formatted data.
• MATLAB reader that reads Applanix aircraft data files.

For more information, please refer to the SBET_Format.pdf file.

See the POS AV Instrument Web page for more information on the POS AV instrument.