Atmospheric CO2 concentration during the last glaciation ...
Analyses of atmospheric air extracted from air bubbles in polar glacier ice provide a measure of past CO2 concentrations and their temporal variations. Earlier measurements have shown that the atmospheric CO2 concentration was significantly lower during the late Wisconsin stage and that the change f...
Main Authors: | , , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
International Glaciological Society
1984
|
Subjects: | |
Online Access: | https://dx.doi.org/10.48350/158750 https://boris.unibe.ch/158750/ |
id |
ftdatacite:10.48350/158750 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.48350/158750 2024-09-30T14:34:14+00:00 Atmospheric CO2 concentration during the last glaciation ... Stauffer, B. Hofer, H. Oeschger, H. Schwander, J. Siegenthaler, U. 1984 https://dx.doi.org/10.48350/158750 https://boris.unibe.ch/158750/ unknown International Glaciological Society restricted access publisher holds copyright http://purl.org/coar/access_right/c_16ec 530 Physics Text conference object article-journal ScholarlyArticle 1984 ftdatacite https://doi.org/10.48350/158750 2024-09-02T10:17:31Z Analyses of atmospheric air extracted from air bubbles in polar glacier ice provide a measure of past CO2 concentrations and their temporal variations. Earlier measurements have shown that the atmospheric CO2 concentration was significantly lower during the late Wisconsin stage and that the change from low to high CO2 concentration occurred in a relatively short time period. We measured the CO2 concentration of ice samples from the deep ice core recently drilled at Dye 3 (south Greenland). The core section investigated represents ice from about 40 to 30 ka BP. The air extracted from the ice samples shows large variations of CO2 concentration which are correlated with δ18O values of the ice samples. A probable explanation of the results is that corresponding changes of the atmospheric CO2 concentration occurred during that glacial period. These changes could have had a significant influence on the climate. Possible reasons for the variations of the atmospheric CO2 concentration are discussed. ... Text Dye 3 Dye-3 glacier Greenland ice core DataCite Greenland |
institution |
Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
530 Physics |
spellingShingle |
530 Physics Stauffer, B. Hofer, H. Oeschger, H. Schwander, J. Siegenthaler, U. Atmospheric CO2 concentration during the last glaciation ... |
topic_facet |
530 Physics |
description |
Analyses of atmospheric air extracted from air bubbles in polar glacier ice provide a measure of past CO2 concentrations and their temporal variations. Earlier measurements have shown that the atmospheric CO2 concentration was significantly lower during the late Wisconsin stage and that the change from low to high CO2 concentration occurred in a relatively short time period. We measured the CO2 concentration of ice samples from the deep ice core recently drilled at Dye 3 (south Greenland). The core section investigated represents ice from about 40 to 30 ka BP. The air extracted from the ice samples shows large variations of CO2 concentration which are correlated with δ18O values of the ice samples. A probable explanation of the results is that corresponding changes of the atmospheric CO2 concentration occurred during that glacial period. These changes could have had a significant influence on the climate. Possible reasons for the variations of the atmospheric CO2 concentration are discussed. ... |
format |
Text |
author |
Stauffer, B. Hofer, H. Oeschger, H. Schwander, J. Siegenthaler, U. |
author_facet |
Stauffer, B. Hofer, H. Oeschger, H. Schwander, J. Siegenthaler, U. |
author_sort |
Stauffer, B. |
title |
Atmospheric CO2 concentration during the last glaciation ... |
title_short |
Atmospheric CO2 concentration during the last glaciation ... |
title_full |
Atmospheric CO2 concentration during the last glaciation ... |
title_fullStr |
Atmospheric CO2 concentration during the last glaciation ... |
title_full_unstemmed |
Atmospheric CO2 concentration during the last glaciation ... |
title_sort |
atmospheric co2 concentration during the last glaciation ... |
publisher |
International Glaciological Society |
publishDate |
1984 |
url |
https://dx.doi.org/10.48350/158750 https://boris.unibe.ch/158750/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Dye 3 Dye-3 glacier Greenland ice core |
genre_facet |
Dye 3 Dye-3 glacier Greenland ice core |
op_rights |
restricted access publisher holds copyright http://purl.org/coar/access_right/c_16ec |
op_doi |
https://doi.org/10.48350/158750 |
_version_ |
1811637918173757440 |