Ablation Rates of Taylor Glacier, Antarctica

Summary

This data set provides glacier surface ablation rates for a network of approximately 250 sites on Taylor Glacier, spanning a period from 2003 to 2011. Here sublimation is the dominant ablation mechanism, though a few sites have accumulation. Ablation data are provided in meters water equivalent per year.

Data are available via FTP in space-delimited ASCII format.

Citing These Data

We kindly request that you cite the use of this data set in a publication using the following citation. For more information, see our Use and Copyright Web page.

Cuffey, Kurt, Andrew Bliss, and Jeffrey Kavanaugh. 2007, updated 2012. Ablation Rates of Taylor Glacier, Antarctica. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N5N29TW8.

Overview Table

Category Description
Data format space-delimited ASCII
Spatial coverage and resolution Southernmost Latitude: 77.9° S
Northernmost Latitude: 77.6° S
Westernmost Longitude: 160.1° E
Easternmost Longitude: 162.2° E
Temporal coverage and resolution collection period start: 2002-11-19
collection period end: 2011-01-12
File naming convention TaylorAblationData03_04.txt
File size Approximately 11 KB.
Parameter(s) Glacier Surface Ablation Rate
Procedures for obtaining data 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

Investigators

Kurt Cuffey
Department of Geography
University of California Berkeley
507 McCone Hall
Berkeley, California 94720-4740 USA 

Andrew Bliss
Department of Geography
University of California Berkeley
507 McCone Hall
Berkeley, California 94720-4740 USA 
Email: andybliss@gmail.com

Jeffrey Kavanaugh
Department of Earth and Atmospheric Sciences
University of Alberta
1-26 Earth Sciences Building
Edmonton Alberta Canada T6G 2E1 

Technical Contact

NSIDC User Services
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder, CO 80309-0449  USA
phone: +1 303.492.6199
fax: +1 303.492.2468
form: Contact NSIDC User Services
e-mail: nsidc@nsidc.org

Acknowledgements

This research was supported by National Science Foundation (NSF) Office of Polar Programs (OPP) grant 0125579 awarded to K. Cuffey.

2. Detailed Data Description

Format

Data files are in space-delimited ASCII format viewable with spreadsheet software.

File and Directory Structure

Data are available on the FTP site in the ftp://sidads.colorado.edu/pub/DATASETS/AGDC/cuffey_nsidc_0326/ directory. Within this directory, there are six data files and a Readme file.

File Naming Convention

Files are named according to the following convention

TaylorAblationDataY1_Y2.txt

Where Y1 indicates the start year for the data file and Y2 indicates the end year for that file.

Table 1, below, indicates the measurements made during each field season

Table 1. Measurements made during field seasons 2003 to 2011
Year Description
2003 Ablation poles were installed and measured for the first time during the 2002-03 season.
2004 All ablation poles were remeasured during the 2003-04 season.
L4 73 poles along the center line of the glacier were remeasured at the end of the 2003/04 season, for a summer ablation rate. (File is named *04_L4.txt)
2006 4 poles were measured by Hassan Basagic during the 2005/06 season.
2007 A selection of 163 poles were measured by Hassan Basagic during the 2006/07 season.
2010 10 poles were measured by Daniel Baggenstos during the 2009/10 season.
2011 17 poles were measured by Vasilii Petrenko during the 2010/11 season.

 

Spatial Coverage

Southernmost Latitude: 77.9° S
Northernmost Latitude: 77.6° S
Westernmost Longitude: 160.1° E
Easternmost Longitude: 162.2° E

Parameter or Variable

Parameter Description

This data set provides glacier surface ablation rate for Taylor Glacier in Antarctica, in meters water equivalent per year. Table 2 below lists the columns in the text files.

Table 2. Parameter Description
Column Number Parameter
1 Ablation Pole Name
2 Latitude
3 Longitude
4 Northing UTM57C (m)
5 Easting UTM57C (m)
6 Elevation
7 Start Year
8 Start Month
9 Start Day
10 End Year
11 End Month
12 End Day
13 Ablation Rate (m w.e./yr) with ablation taken as positive, and accumulation as negative, assuming an ice density of 0.9 kg/m3

 

Sample Data Record

The data below are the first 3 data samples in the TaylorAblationData03_04.txt file.

AV1 -77.82212747 161.075753 1360365 548873.9 997.15 2002 12 7 2004 1 4 0.300683
AV2 -77.82090784 161.0431627 1360528 548111.6 995.17 2002 12 7 2004 1 4 0.24462
AV3 -77.81937786 161.0366401 1360704 547964 993.69 2002 12 7 2004 1 4 0.224399

Data Access

Available via FTP

Volume

The data set is approximately 150 KB.

Related Data Collections

4. Data Acquisition and Processing

Sensor or Instrument Description

Aluminum conduit measurement poles

Data Acquisition Methods

Data were acquired using the traditional pole-height measurement technique. Aluminum conduit poles were initially emplaced 2 meters into the ice. Ablation rate is the difference between initial exposure and exposure approximately one year later, divided by the time interval between measurements. Initial measurements were in December 2002 and January 2003, and then again periodically between 2003 and 2011.

5. References and Related Publications

Aciego, Sarah, Kurt M. Cuffey, Jeffrey L. Kavanaugh, D.L. Morse, and J.P. Severinghaus. 2007. Pleistocene Ice and Paleo-strain Rates at Taylor Glacier, Antarctica. Quaternary Research 68:303-313.

Bliss, A. K., K. M. Cuffey, and J. L. Kavanaugh. 2011. Sublimation and Surface Energy Budget of Taylor Glacier, Antarctica. Journal of Glaciology. 57 (204, 684-696).

Bliss, A. K. 2011. Ablation on Taylor Glacier, Antarctica. PhD Thesis, University of California, Berkeley.

Kavanaugh, J. L., K. M. Cuffey, D. L. Morse, A. K. Bliss, and S. M. Aciego. 2009. Dynamics and Mass Balance of Taylor Glacier, Antarctica: 3. State of Mass Balance. Journal of Geophysical Research, 114, F04012, doi:10.1029/2009JF001331

6. Document Information

Acronyms and Abbreviations

The following acronyms and abbreviations are used in this document.

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

Document Creation Date

November 2007

Document Revision Date

April 2012

Document URL

http://nsidc.org/data/docs/agdc/nsidc0326_cuffey/index.html