Ice-Penetrating Radar Data Across Siple Coast Grounding Lines

Summary

These data consist of ice-penetrating radar data collected on the ground across the grounding line near Siple Dome during the 2006 and 2007 Antarctic summer field seasons. Primarily, the data consist of low-frequency radar data (2MHz, resolution ~50 m) in order to observe deep internal layers and the ice-bed interface. In places, high-frequency (100 MHz, resolution ~1m) radar data also exist. Coincident kinematic GPS data was also collected to correct our radar data for topography along each profile. Radar profiles are typically ~20 km in length with the grounding line crossed centrally where possible.

Data are available via FTP in Matlab (.mat) format.

Citing These Data

These data are offered free of charge. You may use these data freely, provided that you cite NSIDC as the source, and provide an acknowledgment in any published papers.

The following example shows how to cite the use of this data set in a publication. List the principal investigators, year of data set release, data set title, publisher: NSIDC, and digital media.

Hulbe, C., and G. Catania. 2010. Ice-Penetrating Radar Data Across Siple Coast Grounding Lines. Boulder, Colorado, USA: National Snow and Ice Data Center. Digital media.

Overview Table

Category	Description
Data format	Matlab (.mat)
Spatial coverage and resolution	Southernmost Latitude: 83°S Northernmost Latitude: 81°S Westernmost Longitude: 160°W Easternmost Longitude: 145°W
Temporal coverage and resolution	Data were collected between November 2006 and December 2007.
File naming convention	GPR.mat NB.mat SA.mat
File size	Files range in size from 1 KB to 260 MB.
Parameter(s)	Ice sheet surface elevation Ice sheet bed elevation Ice sheet internal stratigraphy Basal conditions along profiles
Procedures for obtaining data	Data are available via FTP.

Table of Contents

1. Contacts and Acknowledgments
2. Detailed Data Description
3. Data Access and Tools
4. Data Acquisition and Processing
5. References and Related Publications
6. Document Information

1. Contacts and Acknowledgments

Investigator(s)

Dr. Christina Hulbe
Portland State University
Department of Geology
P. O. Box 751
Portland, Oregon, USA
97207

Dr. Ginny Catania
University of Texas Institute for Geophysics
J.J. Pickle Research Campus, Bldg. 196
10100 Burnet Rd. (R2200)
Austin, Texas, USA
78758

Technical Contact

Acknowledgements

.....

2. Detailed Data Description

Format

Data are in Matlab (.mat) format.

File and Directory Structure

Data are available on the FTP site in the ftp://sidads.colorado.edu/pub/DATASETS/AGDC/nsidc0474_catania_V01/ directory. Within this directory, there are 7 Matlab (.mat) files, containing

File Naming Convention

Files are named according to the following convention and as described in Table X:

xyz123.bin

Where:

Table X. File Naming Convention

Variable	Description

Example: my_file_name (description of file contents)

File Size

.....

Spatial Coverage

Data were collected at the Kamb Ice Stream, in the Siple Dome region of Antarctica.

Southernmost Latitude: 83°S
Northernmost Latitude: 81°S
Westernmost Longitude: 160°W
Easternmost Longitude: 145°W

Spatial Resolution

...

Projection

.....

Grid Description

.....

Temporal Coverage

...

Temporal Resolution

...

Parameter or Variable

...

Parameter Description

...

Parameter Range

.....

Sample Data Record

.....

Error Sources

.....

Quality Assessment

.....

3. Data Access and Tools

Data Access

.....

Volume

.....

Software and Tools

.....

Related Data Collections

• ...
• ...
• ...
• ...

4. Data Acquisition and Processing

Theory of Measurements

.....

Sensor or Instrument Description

.....

Data Acquisition Methods

.....

Data Source

.....

Derivation Techniques and Algorithms

.....

Processing Steps

.....

5. References and Related Publications

G. Catania, C. Hulbe and H. Conway. 2010. Grounding line basal melt rates determined using radar-derived internal stratigraphy, Journal of Glaciology. In Press.

The following related documents are available on NSIDC's Web site.

Table X. Related Documents

Document	Description	URL

6. Document Information

Acronyms

The following acronyms are used in this document.

Table X. Acronyms and Abbreviations

Acronym	Description
FTP	File Transfer Protocol
NSIDC	National Snow and Ice Data Center
URL	Uniform Resource Locator

Document Creation Date

26 July 2010

Document URL

http://nsidc.org/data/docs/agdc/nsidc0474_hulbe/index.html