Data Versions
This page lists details for IceBridge data products by version number, dates, and changes included in the versions.
NASA Operation IceBridge Data Products By Instrument
- Accumulation Radar
- Airborne Meteorological Instruments (AMET)
- Airborne Topographic Mapper (ATM)
- Atmospheric Chemistry
- Continuous Airborne Mapping By Optical Translator (CAMBOT)
- Digital Mapping System Camera (DMS)
- Ku-Band Radar Altimeter
- Land, Vegetation, and Ice Sensor (LVIS)
- Multichannel Coherent Radar Depth Sounder (MCoRDS)
- Pathfinder Advanced Radar Ice Sounder (PARIS)
- Position/Avionics (POS/AV)
- Sander/LDEO Airborne Gravimeter (AIRGrav)
- Snow Radar
- UAF Lidar
University of Texas ICECAP Data Products By Instrument
- GPS / Inertial Measurement Unit Products
- Gravimeter Products
- Laser Altimeter Products
- Magnetometer Products
- Pressure Altimeter Products
NASA Operation IceBridge Data Products by Instrument
IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles (IRACC1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 05 May 2010 to present | Initial release. |
IceBridge NSERC L1B Geolocated Meteorologic and Surface Temperature Data (IAMET1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 12 October 2009 to present | Initial release. |
IceBridge ATM L1B Qfit Elevation and Return Strength (ILATM1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 31 March 2009 to present | Initial release. |
IceBridge ATM L2 Icessn Elevation, Slope, and Roughness (ILATM2)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 31 March 2009 to present | Initial release. |
IceBridge Atmospheric Chemistry L1B Data (ICHEM1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 12 October 2009 to present | Initial release. |
IceBridge CAMBOT L1B Geolocated Images (IOCAM1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 31 March 2009 to present | Initial release. |
IceBridge DMS L0 Raw Imagery (IODMS0)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 16 October 2009 to present | Initial release. |
IceBridge DMS L1B Geolocated and Orthorectified Images (IODMS1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 16 October 2009 to present | Initial release. |
| V01.1 | 16 October 2009 to present | On April 13, 2011, V01 2009 Antarctica DMS data were replaced by V01.1. The V01 2009 Antarctica DMS data required re-processing because the data were projected using the SRTMplus Digital Elevation Model (DEM). This DEM references the sea floor for all non-terrestrial locations. In addition, during re-processing, a more refined boresight model was employed and provides a more accurate attitude reference. |
IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles (IRKUB1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 20 April 2010 to present | Initial release. |
| V01.1 | 26 March 2010 to 26 May 2010 | On August 19, 2011, the 2010 Ku-Band L1B Greenland data were replaced by V01.1. For some days the variable record length in the header was more than one 32 bit integer when it should be one 32 bit integer. This offset the records. This is corrected in the August 19, 2011 replacement data. |
IceBridge LVIS L0 Raw Ranges (ILVIS0)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 13 October 2009 to present | Initial release. |
IceBridge LVIS L1B Geolocated Return Energy Waveforms(ILVIS1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 16 April 2009 to present | Initial release. |
IceBridge LVIS L2 Geolocated Ground Elevation and Return Energy Quartiles (ILVIS2)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 14 April 2009 to present | Initial release. |
| V01.1 | 04 October 2010 to 04 November 2010 | All of the 2010 Greenland data for the IceBridge LVIS L2 Geolocated Ground Elevation and Return Energy Quartiles data set have been replaced as of 13 April 2012. Some incorrect values occurred in the previous version of the files, and these are corrected in the Version 01.1 data. |
IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles (IRMCR1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 16 October 2009 to present | Initial release. |
| V01.1 | 16 October 2009 to present | On April 12, 2011, 2009 Antarctica MCoRDS data were replaced by V01.1. The original 2009 Antarctica data were processed through a temporary process with quick look data products only. V01.1 data are produced from full Synthetic Aperture Radar (SAR) processing. |
| V01.2 | 16 October 2009 to present | On May 16, 2011, the 2010 Antarctica MCoRDS data were replaced by V01.2. The initial 2010 Antarctica data release was a quick look product released immediately upon return from the field. It was Synthetic Aperture Radar (SAR) processed, but the cross-track array processing was greatly simplified. The V01.2 release is the standard product produced from full SAR processing. |
| V01.3 | 16 October 2009 to present | On October 17, 2011, the V1.02 2009 and 2010 Antarctica MCoRDS data were replaced by V01.3. In V1.03, the kml_good directories have been removed. The echogram data product offerings have been trimmed to a single echogram per data nodule. V1.02 included CSARP_csarp-combined, CSARP_standard, CSARP_mvdr, and CSARP_qlook. V1.03 includes only CSARP_standard. All "Data_img_01_YYYY..." and "Data_img_02_YYYY..." files have been removed so that the only files left are the "Data_YYYY..." files. In the case where only a single image file was produced in the past, i.e. "Data_img_01_YYYY..." these have been renamed to "Data_YYYY...". |
IceBridge MCoRDS L2 Ice Thickness (IRMCR2)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 16 October 2009 to present | Initial release. |
| V01.1 | 16 October 2009 to present | On April 12, 2011, the 2009 Antarctica MCoRDS data were replaced by V01.1. The original 2009 Antarctica data were processed through a temporary process with quick look data products only. V01.1 data are produced from full Synthetic Aperture Radar (SAR) processing. |
| V01.2 | 16 October 2009 to present | On October 17, 2011, the MCoRDS L2 data were replaced by V01.2. The csv_good and CSARP_layer data were removed from the previous version. |
IceBridge PARIS L2 Ice Thickness (IRPAR2)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 01 April 2009 to 02 May 2009 | Initial release. |
IceBridge POS AV L1B Corrected Position and Attitude Data (IPAPP1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 27 March 2009 to 18 November 2009 | Initial release of POS AV data. The V01 data were obtained from the Applanix POS AV System connected to the ATM instrument. The data were only available for flights on which ATM was operational. There were no problems with the ATM version of the data, but the V01 data were replaced by V01.1 for the sake of completion across all instruments. |
| V01.1 | 27 March 2009 to present | Data collected by the Applanix POS AV System connected to the DMS instrument. Data available for all instruments. Replaces V01. |
IceBridge Sander AIRGrav L1B Geolocated Free Air Gravity Anomalies (IGGRV1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 16 October 2009 to present | Initial release. |
| V01.1 | 02 September 2010 to 24 September 2010 | All of the 2010 Greenland data for the IceBridge Sander AIRGrav L1B Geolocated Free Air Gravity Anomalies data set have been replaced as of 01 October 2010. The data were all correct, however, the transformation to the Scientific Committee of Antarctic Research (SCAR) Polar Stereographic projection was in error. This has been corrected with the Version 01.1 data. |
| V01.2 | 16 October 2009 to 18 November 2009 | All of the 2009 Antarctica data for the IceBridge Sander AIRGrav L1B Geolocated Free Air Gravity Anomalies data set have been replaced as of 27 June 2011. The previous version of the data required re-processing because an error was discovered in the aircraft attitude data files that caused everything for the 2009 Antarctica flights to be rotated 180 degrees. Additionally, after 2009, gravity data processing was changed from a simple free air correction formula to a second order free air correction. Also, since 2009 there have been processing improvements that reduce noise levels, especially at shorter wavelengths (70s) on some lines. The 2009 Antarctica data files have been re-processed for second order free air correction and reduction of noise levels. These changes have been made with the Version 01.2 data. |
| V01.3 | 16 October 2009 to 20 November 2010 | On 21 May 2012, the 2009 and 2010 Antarctica data were replaced by V01.3. The previous data versions were organized regionally by glacier basin. V01.3 gravity data are organized by flight lines. |
IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles (IRSNO1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 31 March 2009 to present | Initial release. |
| V01.1 | 31 March 2009 to 05 May 2009 | As of June 10, 2011, all of the 2009 Greenland binary files (.bin) were replaced. The GPS time written in the headers of the previously published binary files contained an error. The error is corrected in the current binary files. |
| V01.2 | 02 April 2009 | 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. |
IceBridge UAF Lidar Profiler L1B Geolocated Surface Elevation Triplets (ILAKP1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 22 May 2009 to 02 June 2009 | Initial release. |
IceBridge UAF Lidar Scanner L1B Geolocated Surface Elevation Triplets (ILAKS1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 13 August 2009 to present | Initial release. |
University of Texas ICECAP Data Products by Instrument
IceBridge GPS/IMU L1B Primary Position and Attitude Solution (IPUTG1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 24 November 2009 to present | Initial release. |
| V01.1 | 14 November 2011 to 23 December 2011 | On 02 May, 2012, V01 2011 Antarctica data were replaced by V01.1. In V01.1, additional fields were added containing low-precision real-time position and orientation data resampled to match the times of the existing geophysical samples. |
IceBridge BGM-3 Gravimeter L1B Time-Tagged Accelerations (IGBGM1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 27 November 2009 to present | Initial release. |
| V01.1 | 18 November 2011 to 23 December 2011 | On 02 May, 2012, V01 2011 Antarctica data were replaced by V01.1. In V01.1, additional fields were added containing low-precision real-time position and orientation data resampled to match the times of the existing geophysical samples. |
IceBridge Riegl Laser Altimeter L1B Time-Tagged Laser Ranges (ILUTP1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 09 November 2009 to present | Initial release. |
| V01.1 | 10 November 2011 to 23 December 2011 | On 02 May, 2012, V01 2011 Antarctica data were replaced by V01.1. In V01.1, additional fields were added containing low-precision real-time position and orientation data resampled to match the times of the existing geophysical samples. |
IceBridge Geometrics 823A Cesium Magnetometer L1B Time-Tagged Magnetic Field (IMGEO1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 16 November 2009 to present | Initial release. |
| V01.1 | 14 November 2011 to 23 December 2011 | On 02 May, 2012, V01 2011 Antarctica data were replaced by V01.1. In V01.1, additional fields were added containing low-precision real-time position and orientation data resampled to match the times of the existing geophysical samples. |
IceBridge Paroscientific S-1000 L1B Pressure Altimeter Time-Tagged Air Pressure (IAPRS1B)
| Version | Dates | Changes Included In This Version |
|---|---|---|
| V01 | 16 November 2009 | Initial release. |
| V01.1 | 14 November 2011 to 23 December 2011 | On 02 May, 2012, V01 2011 Antarctica data were replaced by V01.1. In V01.1, additional fields were added containing low-precision real-time position and orientation data resampled to match the times of the existing geophysical samples. |
Page last updated: 05/23/12
