Methane and carbon dioxide measured on the Vostok ice core ...

CO2 and CH4 measurements have been performed using the methods and analytical procedures previously described (Barnola et al., 1987, Chappellaz et al, 1990). However, the CO2 measuring system has been slightly modified in order to increase the sensitivity of the CO2 detection. The thermal conductivi...

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Bibliographic Details
Main Author: Petit, Jean Robert
Format: Dataset
Language:English
Published: PANGAEA 2005
Subjects:
AGE
Methane
Carbon dioxide
Drilling/drill rig
see comment
Ice_core_diverse
Sampling/drilling ice
ice core
Online Access:https://dx.doi.org/10.1594/pangaea.55501
https://doi.pangaea.de/10.1594/PANGAEA.55501
Description
Summary:CO2 and CH4 measurements have been performed using the methods and analytical procedures previously described (Barnola et al., 1987, Chappellaz et al, 1990). However, the CO2 measuring system has been slightly modified in order to increase the sensitivity of the CO2 detection. The thermal conductivity chromatographic detector has been replaced by a flame ionisation detector which measures CO2 after its transformation into CH4. The overall accuracy for CH4 and CO2 measurements are ± 20 ppbv and 2-3 ppmv respectively. No gravitational correction has been applied. ...

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