Atmospheric CO2 and Climate: Taylor Dome Ice Core, Antarctica
Summary
Using new and existing ice core CO2 data from 65 - 30 ka BP, a new chronology for Taylor Dome ice core CO2 is established and synchronized with Greenland ice core records to study how high latitude climate change and the carbon cycle were linked during the last glacial period. The new data and chronology should provide a better target for models attempting to explain CO2 variability and abrupt climate change. Data are available in Microsoft Excel format and are available via FTP.
Citing These Data
The following example shows how to cite the use of this data set in a publication. For more information, see our Use and Copyright Web page.
Ahn, Jinho and Ed Brook . 2007. Atmospheric CO2 Taylor Dome Ice Core, Antarctica. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N5542KJK.
Overview Table
| Category | Description |
|---|---|
| Data format | Microsoft Excel |
| Spatial coverage and resolution |
Southernmost Latitude: 77.66° S Northernmost Latitude: 77.66° S Westernmost Longitude: 158.00° E Easternmost Longitude: 158.00° E Elevation - 1530 m |
| Temporal coverage and resolution | 65 to 30 ka BP |
| File naming convention | TD-CO2-on-GISP2 age-Ahn-Brook-June23-2007.xls |
| File size | Approximately 32 KB. |
| Parameter(s) | Carbon dioxide (CO2) |
| 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
Investigator(s)
Jinho Ahn
Department of Geosciences
Oregon State University
104 Wilkinson Hall
Corvallis, Oregon 97331 USA
Ed Brook
Department of Geosciences
Oregon State University
104 Wilkinson Hall
Corvallis, Oregon 97331 USA
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 0337891 awarded to E. Brook.
2. Detailed Data Description
Format
Data files are in Microsoft Excel format viewable with spreadsheet software and an Adobe Acrobat PDF .
File Naming Convention
Files are named according to the following convention.
| File name | File Size | Description |
| TD-CO2-on-GISP2 age-Ahn-Brook-June23-2007.xls | 32 KB | Microsoft Excel File |
Spatial Coverage
Southernmost Latitude: 77.66° S
Northernmost Latitude: 77.66° S
Westernmost Longitude: 158.00° E
Easternmost Longitude: 158.00° E
Parameter or Variable
Parameter Description
The measured parameter is CO2 at various depths in the ice core.
Parameter Range
Carbon dioxide (CO2): 201.79 parts per million by volume (ppmv) to 224.99 ppmv.
Sample Data Record
The data below are the first 10 data samples showing Taylor Dome CO2 records.
Depth |
GT4 age |
Ahn-07 |
CO2 |
+/- |
GISP2 age |
||||
(m) |
(kyr BP) |
(kyr BP) |
(ppmv) |
(ppmv) |
388.515 |
25.769 |
30.5315 |
191.1 |
0.5 |
389.7 |
26.471 |
31.2335 |
193.5 |
0.8 |
390.71 |
27.038 |
31.8005 |
196.8 |
0.5 |
391.63 |
27.529 |
32.2915 |
199.6 |
0.6 |
392.62 |
28.032 |
32.5953 |
199.1 |
0.2 |
393.545 |
28.478 |
32.8792 |
200.4 |
0.6 |
395.32 |
29.274 |
33.424 |
200.2 |
0.3 |
396.42 |
29.73 |
33.7616 |
200.1 |
0.7 |
396.975 |
29.949 |
33.932 |
201.6 |
0.5 |
397.64 |
30.203 |
34.1361 |
200.9 |
0.6 |
Data Access
Volume
The data set is approximately 32 KB.
Related Data Collections
- Atmospheric CO2 Trapped in the Ice Core from Siple Dome, Antarctica
- Carbon-Isotopic Composition of Atmospheric CO2 since the Last Glacial Maximum
- Atmospheric CO2 and Climate: Byrd Ice Core, Antarctica
4. Data Acquisition and Processing
Sensor or Instrument Description
Agilent 6890N Gas Chromatograph
Data Acquisition Methods
The CO2 mixing ratio was measured with an Agilent 6890N Gas Chromatograph (GC) with flame ionization detector, with nickel catalyst conversion of CO2 to CH4 prior to measurement.
5. References and Related Publications
Ahn, Jinho and Ed Brook. 2007. Atmospheric CO2 and climate from 65 to 30 ka B.P. Geophysical Research Letters. 34, L10703, doi:10.1029/2007GL029551.
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 |
| ka BP | thousand years before present |
| CO2 | Carbon Dioxide |
| URL | Uniform Resource Locator |
Document Creation Date
October 2007
Document URL
http://nsidc.org/data/docs/agdc/nsidc0314_ahn/index.html
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