Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials
Paleoceanographic reconstructions from the North Atlantic indicate massive ice breakouts from East Greenland near the onset of cold Dansgaard-Oeschger (D-O) stadials. In contrast to these coolings in the North Atlantic area, a new sea-surface temperature record reveals concomitant warm spells in the...
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ftawi:oai:epic.awi.de:11053 2023-09-05T13:19:10+02:00 Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials Kiefer, T. Lorenz, S. Schulz, Maximilian Lohmann, Gerrit Sarnthein, M. Elderfield, H. 2002 application/pdf https://epic.awi.de/id/eprint/11053/ https://epic.awi.de/id/eprint/11053/1/Kie2002b.pdf https://hdl.handle.net/10013/epic.21513 https://hdl.handle.net/10013/epic.21513.d001 unknown https://epic.awi.de/id/eprint/11053/1/Kie2002b.pdf https://hdl.handle.net/10013/epic.21513.d001 Kiefer, T. , Lorenz, S. , Schulz, M. , Lohmann, G. orcid:0000-0003-2089-733X , Sarnthein, M. and Elderfield, H. (2002) Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials , Terra Nova,14, 4 , pp. 295-300 . hdl:10013/epic.21513 EPIC3Terra Nova,14, 4, pp. 295-300 Article isiRev 2002 ftawi 2023-08-22T19:49:05Z Paleoceanographic reconstructions from the North Atlantic indicate massive ice breakouts from East Greenland near the onset of cold Dansgaard-Oeschger (D-O) stadials. In contrast to these coolings in the North Atlantic area, a new sea-surface temperature record reveals concomitant warm spells in the northern North Pacific. A sensitivity experiment with an atmospheric general circulation model is used to test the potential impact of sea-surface warmings by 3.5C in the North Pacific, on top of otherwise cold stadial climate conditions, on the precipitation regime over the Northern Hemisphere ice sheets. The model predicts a maximum response over East Greenland and the Greenland Sea, where a 40% increase in net annual snow accumulation occurs. This remote effect of North Pacific warm spells on the East Greenland snow-accumulation rate may play an important role in generating D-O cycles by rebuilding the ice lost during ice breakouts. In addition, the increased precipitation over the Greenland Sea may help to sustain the D-O stadial climate state. Article in Journal/Newspaper East Greenland Greenland Greenland Sea North Atlantic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Greenland Pacific |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Paleoceanographic reconstructions from the North Atlantic indicate massive ice breakouts from East Greenland near the onset of cold Dansgaard-Oeschger (D-O) stadials. In contrast to these coolings in the North Atlantic area, a new sea-surface temperature record reveals concomitant warm spells in the northern North Pacific. A sensitivity experiment with an atmospheric general circulation model is used to test the potential impact of sea-surface warmings by 3.5C in the North Pacific, on top of otherwise cold stadial climate conditions, on the precipitation regime over the Northern Hemisphere ice sheets. The model predicts a maximum response over East Greenland and the Greenland Sea, where a 40% increase in net annual snow accumulation occurs. This remote effect of North Pacific warm spells on the East Greenland snow-accumulation rate may play an important role in generating D-O cycles by rebuilding the ice lost during ice breakouts. In addition, the increased precipitation over the Greenland Sea may help to sustain the D-O stadial climate state. |
format |
Article in Journal/Newspaper |
author |
Kiefer, T. Lorenz, S. Schulz, Maximilian Lohmann, Gerrit Sarnthein, M. Elderfield, H. |
spellingShingle |
Kiefer, T. Lorenz, S. Schulz, Maximilian Lohmann, Gerrit Sarnthein, M. Elderfield, H. Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials |
author_facet |
Kiefer, T. Lorenz, S. Schulz, Maximilian Lohmann, Gerrit Sarnthein, M. Elderfield, H. |
author_sort |
Kiefer, T. |
title |
Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials |
title_short |
Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials |
title_full |
Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials |
title_fullStr |
Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials |
title_full_unstemmed |
Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials |
title_sort |
response of precipitation over greenland and the adjacent ocean to north pacific warm spells during dansgaard-oeschger stadials |
publishDate |
2002 |
url |
https://epic.awi.de/id/eprint/11053/ https://epic.awi.de/id/eprint/11053/1/Kie2002b.pdf https://hdl.handle.net/10013/epic.21513 https://hdl.handle.net/10013/epic.21513.d001 |
geographic |
Greenland Pacific |
geographic_facet |
Greenland Pacific |
genre |
East Greenland Greenland Greenland Sea North Atlantic |
genre_facet |
East Greenland Greenland Greenland Sea North Atlantic |
op_source |
EPIC3Terra Nova,14, 4, pp. 295-300 |
op_relation |
https://epic.awi.de/id/eprint/11053/1/Kie2002b.pdf https://hdl.handle.net/10013/epic.21513.d001 Kiefer, T. , Lorenz, S. , Schulz, M. , Lohmann, G. orcid:0000-0003-2089-733X , Sarnthein, M. and Elderfield, H. (2002) Response of precipitation over Greenland and the adjacent ocean to North Pacific warm spells during Dansgaard-Oeschger stadials , Terra Nova,14, 4 , pp. 295-300 . hdl:10013/epic.21513 |
_version_ |
1776199975583088640 |