CO2 concentration in air extracted from Greenland ice samples
The principal aim of the analyses of the CO2 concentration in air extracted from ice samples is to reconstruct the CO2 concentration of the atmosphere during the last millenia. For this purpose ice from very cold regions is best suited. Ice samples from Dye 3, where the mean annual air temperature i...
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American Geophysical Union
1985
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ftunivbern:oai:boris.unibe.ch:160969 2023-08-20T04:06:11+02:00 CO2 concentration in air extracted from Greenland ice samples Stauffer, B. Neftel, A. Oeschger, H. Schwander, J. Langway Jr.,, C.C. Oeschger, H. Dansgaard, W. 1985 application/pdf https://boris.unibe.ch/160969/1/Stauffer_CO2_concentration_in_air_extracted_from_Greenland_ice_samples.pdf https://boris.unibe.ch/160969/ eng eng American Geophysical Union https://boris.unibe.ch/160969/ info:eu-repo/semantics/restrictedAccess Stauffer, B.; Neftel, A.; Oeschger, H.; Schwander, J. (1985). CO2 concentration in air extracted from Greenland ice samples. In: Langway Jr.,, C.C.; Oeschger, H.; Dansgaard, W. (eds.) Greenland Ice Core: Geophysics, Geochemistry and the Environment. Geophysical Monograph Series: Vol. 33 (pp. 85-89). American Geophysical Union 10.1029/GM033p0085 <http://dx.doi.org/10.1029/GM033p0085> 530 Physics info:eu-repo/semantics/bookPart info:eu-repo/semantics/publishedVersion PeerReviewed 1985 ftunivbern https://doi.org/10.1029/GM033p0085 2023-07-31T22:09:34Z The principal aim of the analyses of the CO2 concentration in air extracted from ice samples is to reconstruct the CO2 concentration of the atmosphere during the last millenia. For this purpose ice from very cold regions is best suited. Ice samples from Dye 3, where the mean annual air temperature is −20°C and summer melting is frequent, are not very well suited from this point of view. The results of CO2 analyses give however very valuable information on a possible temperature effect on the CO2 concentration of air in the bubbles. The CO2 content show's seasonal variations with an annual maximum value in the summer melt layer. The annual minimum values correspond approximately to the estimated atmospheric CO2 concentrations. Based on this experience, in spite of the complications due to the melt features, we try to reconstruct the history of the CO2 concentrations of the atmosphere. of special interest are the fast climatic transitions in the course and especially at the end of the last glaciation which are represented in the ice core by changes of parameters like acidity, dust, and istopic ratios in short depth intervals. In this respect we discuss the time lag between the climatic warming at the end of the last glaciation and the increase of the atmospheric CO2 concentration. Finally results of gas content and gas composition of two ice samples from the lowest, silty part of the ice core are discussed. Book Part Dye 3 Dye-3 Greenland ice core BORIS (Bern Open Repository and Information System, University of Bern) Greenland 85 89 |
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Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics Stauffer, B. Neftel, A. Oeschger, H. Schwander, J. CO2 concentration in air extracted from Greenland ice samples |
topic_facet |
530 Physics |
description |
The principal aim of the analyses of the CO2 concentration in air extracted from ice samples is to reconstruct the CO2 concentration of the atmosphere during the last millenia. For this purpose ice from very cold regions is best suited. Ice samples from Dye 3, where the mean annual air temperature is −20°C and summer melting is frequent, are not very well suited from this point of view. The results of CO2 analyses give however very valuable information on a possible temperature effect on the CO2 concentration of air in the bubbles. The CO2 content show's seasonal variations with an annual maximum value in the summer melt layer. The annual minimum values correspond approximately to the estimated atmospheric CO2 concentrations. Based on this experience, in spite of the complications due to the melt features, we try to reconstruct the history of the CO2 concentrations of the atmosphere. of special interest are the fast climatic transitions in the course and especially at the end of the last glaciation which are represented in the ice core by changes of parameters like acidity, dust, and istopic ratios in short depth intervals. In this respect we discuss the time lag between the climatic warming at the end of the last glaciation and the increase of the atmospheric CO2 concentration. Finally results of gas content and gas composition of two ice samples from the lowest, silty part of the ice core are discussed. |
author2 |
Langway Jr.,, C.C. Oeschger, H. Dansgaard, W. |
format |
Book Part |
author |
Stauffer, B. Neftel, A. Oeschger, H. Schwander, J. |
author_facet |
Stauffer, B. Neftel, A. Oeschger, H. Schwander, J. |
author_sort |
Stauffer, B. |
title |
CO2 concentration in air extracted from Greenland ice samples |
title_short |
CO2 concentration in air extracted from Greenland ice samples |
title_full |
CO2 concentration in air extracted from Greenland ice samples |
title_fullStr |
CO2 concentration in air extracted from Greenland ice samples |
title_full_unstemmed |
CO2 concentration in air extracted from Greenland ice samples |
title_sort |
co2 concentration in air extracted from greenland ice samples |
publisher |
American Geophysical Union |
publishDate |
1985 |
url |
https://boris.unibe.ch/160969/1/Stauffer_CO2_concentration_in_air_extracted_from_Greenland_ice_samples.pdf https://boris.unibe.ch/160969/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Dye 3 Dye-3 Greenland ice core |
genre_facet |
Dye 3 Dye-3 Greenland ice core |
op_source |
Stauffer, B.; Neftel, A.; Oeschger, H.; Schwander, J. (1985). CO2 concentration in air extracted from Greenland ice samples. In: Langway Jr.,, C.C.; Oeschger, H.; Dansgaard, W. (eds.) Greenland Ice Core: Geophysics, Geochemistry and the Environment. Geophysical Monograph Series: Vol. 33 (pp. 85-89). American Geophysical Union 10.1029/GM033p0085 <http://dx.doi.org/10.1029/GM033p0085> |
op_relation |
https://boris.unibe.ch/160969/ |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/GM033p0085 |
container_start_page |
85 |
op_container_end_page |
89 |
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1774717130817667072 |