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.
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Atmospheric CO2 and Climate: Taylor Dome Ice Core, Antarctica, Version 1
Geographic Coverage
Spatial Coverage: |
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---|---|
Spatial Resolution: | Not Specified |
Temporal Coverage: | Not specified |
Temporal Resolution: | Not specified |
Parameter(s): |
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Platform(s) | Not specified |
Sensor(s): | GAS CHROMATOGRAPHS |
Data Format(s): |
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Version: | V1 |
Data Contributor(s): | Jinho Ahn, Edward Brook, NSIDC User Services |
Metadata XML: | View Metadata Record |
Data Citation
As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.
Ahn, J. and E. J. Brook. 2007. Atmospheric CO2 and Climate: Taylor Dome Ice Core, Antarctica, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: http://dx.doi.org/10.7265/N5542KJK. [Date Accessed].Detailed Data Description
Data files are in Microsoft Excel format viewable with spreadsheet software and an Adobe Acrobat PDF .
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 |
Files ranges from 25 KB to 777 KB.
The data set is approximately 32 KB.
Southernmost Latitude: 77.66° S
Northernmost Latitude: 77.66° S
Westernmost Longitude: 158.00° E
Easternmost Longitude: 158.00° E
The temporal coverage for this data set spans from 65 to 30 ka BP.
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
|
Software and Tools
Data Acquisition and Processing
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.
Agilent 6890N Gas Chromatograph
References and Related Publications
Contacts and Acknowledgments
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
This research was supported by National Science Foundation (NSF) Office of Polar Programs (OPP) grant 0337891 awarded to E. Brook.
Document Information
DOCUMENT CREATION DATE
October 2007
DOCUMENT REVISION DATE
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