Northern hemisphere concentrations of methane and nitrous oxide since 1800: Results from the Mt. Logan and 20D ice cores
Concentrations of CH4 and N2O have been determined in bubbles extracted from the Mt. Logan (Yukon) and 20D (south Greenland) ice cores. The enclosure dates of the trapped gas samples range from 1802 to 1960; thus these data help to document the anthropogenic increases of these two greenhouse gases i...
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ftuninhampshire:oai:scholars.unh.edu:earthsci_facpub-1155 2023-05-15T16:27:02+02:00 Northern hemisphere concentrations of methane and nitrous oxide since 1800: Results from the Mt. Logan and 20D ice cores Dibb, Jack E. Rasmussen, R A Mayewski, Paul A Holdsworth, G 1993-12-01T08:00:00Z text/html https://scholars.unh.edu/earthsci_facpub/156 https://doi.org/10.1016/0045-6535(93)90263-5 unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/earthsci_facpub/156 http://dx.doi.org/10.1016/0045-6535(93)90263-5 Copyright © 1993 Published by Elsevier Ltd. Earth Sciences Scholarship Atmospheric Sciences text 1993 ftuninhampshire https://doi.org/10.1016/0045-6535(93)90263-5 2023-01-30T21:34:20Z Concentrations of CH4 and N2O have been determined in bubbles extracted from the Mt. Logan (Yukon) and 20D (south Greenland) ice cores. The enclosure dates of the trapped gas samples range from 1802 to 1960; thus these data help to document the anthropogenic increases of these two greenhouse gases in the Northern Hemisphere atmosphere. In general, the new data are in accord with previous ice core studies showing accelerating increases in concentration of both gases since 1900. The Mt. Logan records appear to be the first for any trace gases from alpine glacial ice. The present data set is too sparse to be conclusive, but suggests generally higher CH4concentrations over south Greenland than Mt. Logan, particularly for the 1850 - 1900 period. Text Greenland Greenland ice cores ice core Yukon University of New Hampshire: Scholars Repository Yukon Greenland Chemosphere 27 12 2413 2423 |
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Open Polar |
collection |
University of New Hampshire: Scholars Repository |
op_collection_id |
ftuninhampshire |
language |
unknown |
topic |
Atmospheric Sciences |
spellingShingle |
Atmospheric Sciences Dibb, Jack E. Rasmussen, R A Mayewski, Paul A Holdsworth, G Northern hemisphere concentrations of methane and nitrous oxide since 1800: Results from the Mt. Logan and 20D ice cores |
topic_facet |
Atmospheric Sciences |
description |
Concentrations of CH4 and N2O have been determined in bubbles extracted from the Mt. Logan (Yukon) and 20D (south Greenland) ice cores. The enclosure dates of the trapped gas samples range from 1802 to 1960; thus these data help to document the anthropogenic increases of these two greenhouse gases in the Northern Hemisphere atmosphere. In general, the new data are in accord with previous ice core studies showing accelerating increases in concentration of both gases since 1900. The Mt. Logan records appear to be the first for any trace gases from alpine glacial ice. The present data set is too sparse to be conclusive, but suggests generally higher CH4concentrations over south Greenland than Mt. Logan, particularly for the 1850 - 1900 period. |
format |
Text |
author |
Dibb, Jack E. Rasmussen, R A Mayewski, Paul A Holdsworth, G |
author_facet |
Dibb, Jack E. Rasmussen, R A Mayewski, Paul A Holdsworth, G |
author_sort |
Dibb, Jack E. |
title |
Northern hemisphere concentrations of methane and nitrous oxide since 1800: Results from the Mt. Logan and 20D ice cores |
title_short |
Northern hemisphere concentrations of methane and nitrous oxide since 1800: Results from the Mt. Logan and 20D ice cores |
title_full |
Northern hemisphere concentrations of methane and nitrous oxide since 1800: Results from the Mt. Logan and 20D ice cores |
title_fullStr |
Northern hemisphere concentrations of methane and nitrous oxide since 1800: Results from the Mt. Logan and 20D ice cores |
title_full_unstemmed |
Northern hemisphere concentrations of methane and nitrous oxide since 1800: Results from the Mt. Logan and 20D ice cores |
title_sort |
northern hemisphere concentrations of methane and nitrous oxide since 1800: results from the mt. logan and 20d ice cores |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
1993 |
url |
https://scholars.unh.edu/earthsci_facpub/156 https://doi.org/10.1016/0045-6535(93)90263-5 |
geographic |
Yukon Greenland |
geographic_facet |
Yukon Greenland |
genre |
Greenland Greenland ice cores ice core Yukon |
genre_facet |
Greenland Greenland ice cores ice core Yukon |
op_source |
Earth Sciences Scholarship |
op_relation |
https://scholars.unh.edu/earthsci_facpub/156 http://dx.doi.org/10.1016/0045-6535(93)90263-5 |
op_rights |
Copyright © 1993 Published by Elsevier Ltd. |
op_doi |
https://doi.org/10.1016/0045-6535(93)90263-5 |
container_title |
Chemosphere |
container_volume |
27 |
container_issue |
12 |
container_start_page |
2413 |
op_container_end_page |
2423 |
_version_ |
1766016084304986112 |