Atmospheric CO 2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core
We report a decadally resolved record of atmospheric CO 2 concentration for the last 1000 years, obtained from the West Antarctic Ice Sheet (WAIS) Divide shallow ice core. The most prominent feature of the pre-industrial period is a rapid ∼7 ppm decrease of CO 2 in a span of ∼20-50 years at ∼1600 A....
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Online Access: | http://hdl.handle.net/11591/410570 https://doi.org/10.1029/2011GB004247 |
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ftuncampaniairis:oai:iris.unicampania.it:11591/410570 2024-04-14T08:02:30+00:00 Atmospheric CO 2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core Ahn J. Brook E. J. Mitchell L. Rosen J. McConnell J. R. Taylor K. Etheridge D. Rubino M. Ahn, J. Brook, E. J. Mitchell, L. Rosen, J. Mcconnell, J. R. Taylor, K. Etheridge, D. Rubino, M. 2012 http://hdl.handle.net/11591/410570 https://doi.org/10.1029/2011GB004247 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000304551200001 volume:26 issue:2 firstpage:n/a lastpage:n/a journal:GLOBAL BIOGEOCHEMICAL CYCLES http://hdl.handle.net/11591/410570 doi:10.1029/2011GB004247 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84861709863 info:eu-repo/semantics/article 2012 ftuncampaniairis https://doi.org/10.1029/2011GB004247 2024-03-21T16:14:41Z We report a decadally resolved record of atmospheric CO 2 concentration for the last 1000 years, obtained from the West Antarctic Ice Sheet (WAIS) Divide shallow ice core. The most prominent feature of the pre-industrial period is a rapid ∼7 ppm decrease of CO 2 in a span of ∼20-50 years at ∼1600 A.D. This observation confirms the timing of an abrupt atmospheric CO 2 decrease of ∼10 ppm observed for that time period in the Law Dome ice core CO 2 records, but the true magnitude of the decrease remains unclear. Atmospheric CO 2 variations over the time period 1000-1800 A.D. are statistically correlated with northern hemispheric climate and tropical Indo-Pacific sea surface temperature. However, the exact relationship between CO 2 and climate remains elusive due to regional climate variations and/or uneven geographical data density of paleoclimate records. We observe small differences of 0 ∼ 2% (0 ∼ 6 ppm) among the high-precision CO 2 records from the Law Dome, EPICA Dronning Maud Land and WAIS Divide Antarctic ice cores. However, those records share common trends of CO 2 change on centennial to multicentennial time scales, and clearly show that atmospheric CO 2 has been increasing above preindustrial levels since ∼1850 A.D. Copyright 2012 by the American Geophysical Union. Article in Journal/Newspaper Antarc* Antarctic Dronning Maud Land EPICA ice core Ice Sheet Università degli Studi della Campania "Luigi Vanvitelli": CINECA IRIS V: Antarctic Dronning Maud Land West Antarctic Ice Sheet Pacific Law Dome ENVELOPE(112.833,112.833,-66.733,-66.733) Global Biogeochemical Cycles 26 2 n/a n/a |
institution |
Open Polar |
collection |
Università degli Studi della Campania "Luigi Vanvitelli": CINECA IRIS V: |
op_collection_id |
ftuncampaniairis |
language |
English |
description |
We report a decadally resolved record of atmospheric CO 2 concentration for the last 1000 years, obtained from the West Antarctic Ice Sheet (WAIS) Divide shallow ice core. The most prominent feature of the pre-industrial period is a rapid ∼7 ppm decrease of CO 2 in a span of ∼20-50 years at ∼1600 A.D. This observation confirms the timing of an abrupt atmospheric CO 2 decrease of ∼10 ppm observed for that time period in the Law Dome ice core CO 2 records, but the true magnitude of the decrease remains unclear. Atmospheric CO 2 variations over the time period 1000-1800 A.D. are statistically correlated with northern hemispheric climate and tropical Indo-Pacific sea surface temperature. However, the exact relationship between CO 2 and climate remains elusive due to regional climate variations and/or uneven geographical data density of paleoclimate records. We observe small differences of 0 ∼ 2% (0 ∼ 6 ppm) among the high-precision CO 2 records from the Law Dome, EPICA Dronning Maud Land and WAIS Divide Antarctic ice cores. However, those records share common trends of CO 2 change on centennial to multicentennial time scales, and clearly show that atmospheric CO 2 has been increasing above preindustrial levels since ∼1850 A.D. Copyright 2012 by the American Geophysical Union. |
author2 |
Ahn, J. Brook, E. J. Mitchell, L. Rosen, J. Mcconnell, J. R. Taylor, K. Etheridge, D. Rubino, M. |
format |
Article in Journal/Newspaper |
author |
Ahn J. Brook E. J. Mitchell L. Rosen J. McConnell J. R. Taylor K. Etheridge D. Rubino M. |
spellingShingle |
Ahn J. Brook E. J. Mitchell L. Rosen J. McConnell J. R. Taylor K. Etheridge D. Rubino M. Atmospheric CO 2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core |
author_facet |
Ahn J. Brook E. J. Mitchell L. Rosen J. McConnell J. R. Taylor K. Etheridge D. Rubino M. |
author_sort |
Ahn J. |
title |
Atmospheric CO 2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core |
title_short |
Atmospheric CO 2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core |
title_full |
Atmospheric CO 2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core |
title_fullStr |
Atmospheric CO 2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core |
title_full_unstemmed |
Atmospheric CO 2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core |
title_sort |
atmospheric co 2 over the last 1000 years: a high-resolution record from the west antarctic ice sheet (wais) divide ice core |
publishDate |
2012 |
url |
http://hdl.handle.net/11591/410570 https://doi.org/10.1029/2011GB004247 |
long_lat |
ENVELOPE(112.833,112.833,-66.733,-66.733) |
geographic |
Antarctic Dronning Maud Land West Antarctic Ice Sheet Pacific Law Dome |
geographic_facet |
Antarctic Dronning Maud Land West Antarctic Ice Sheet Pacific Law Dome |
genre |
Antarc* Antarctic Dronning Maud Land EPICA ice core Ice Sheet |
genre_facet |
Antarc* Antarctic Dronning Maud Land EPICA ice core Ice Sheet |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000304551200001 volume:26 issue:2 firstpage:n/a lastpage:n/a journal:GLOBAL BIOGEOCHEMICAL CYCLES http://hdl.handle.net/11591/410570 doi:10.1029/2011GB004247 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84861709863 |
op_doi |
https://doi.org/10.1029/2011GB004247 |
container_title |
Global Biogeochemical Cycles |
container_volume |
26 |
container_issue |
2 |
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n/a |
op_container_end_page |
n/a |
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1796315371833131008 |