Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial
State-of-the-art climate models were used to simulate climate conditions in Europe during Greenland Stadial (GS) 12 at 44ka BP. The models employed for these simulations were: (i) a fully coupled atmosphere–ocean global climate model (AOGCM), and (ii) a regional atmospheric climate model (RCM) to dy...
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ftunivwestsyd:oai:researchdirect.westernsydney.edu.au:uws_48506 2023-05-15T16:12:15+02:00 Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial Kjellstrom, Erik Brandefelt, Jenny Naslund, Jens-Ove Smith, Benjamin (R19508) Strandberg, Gustav Voelker, Antje H. Wohlfarth, Barbara Hawkesbury Institute for the Environment (Host institution) 2010 print 21 https://doi.org/10.1111/j.1502-3885.2010.00143.x http://handle.westernsydney.edu.au:8081/1959.7/uws:48506 eng eng U.S., Wiley-Blackwell Publishing Boreas--0300-9483--1502-3885 Vol. 39 Issue. 2 No. pp: 436-456 XXXXXX - Unknown vegetation dynamics paleoclimatology isotopes journal article 2010 ftunivwestsyd https://doi.org/10.1111/j.1502-3885.2010.00143.x 2020-12-05T17:56:03Z State-of-the-art climate models were used to simulate climate conditions in Europe during Greenland Stadial (GS) 12 at 44ka BP. The models employed for these simulations were: (i) a fully coupled atmosphere–ocean global climate model (AOGCM), and (ii) a regional atmospheric climate model (RCM) to dynamically downscale results from the global model for a more detailed investigation of European climate conditions. The vegetation was simulated off-line by a dynamic vegetation model forced by the climate from the RCM. The resulting vegetation was then compared with the a priori vegetation used in the first simulation. In a subsequent step, the RCM was rerun to yield a new climate more consistent with the simulated vegetation. Forcing conditions included orbital forcing, land–sea distribution, ice-sheet configuration, and atmospheric greenhouse gas concentrations representative for 44 ka BP. The results show a cold climate on the global scale, with global annual mean surface temperatures 51C colder than the modern climate. This is still significantly warmer than temperatures derived from the same model system for the Last Glacial Maximum (LGM). Regional, northern European climate is much colder than today, but still significantly warmer than during the LGM. Comparisons between the simulated climate and proxy-based sea-surface temperature reconstructions show that the results are in broad agreement, albeit with a possible cold bias in parts of the North Atlantic in summer. Given a prescribed restricted Marine Isotope Stage 3 ice-sheet configuration, with large ice-free regions in Sweden and Finland, the AOGCM and RCM model simulations produce a cold and dry climate in line with the restricted ice-sheet configuration during GS 12. The simulated temperature climate, with prescribed ice-free conditions in south-central Fennoscandia, is favourable for the development of permafrost, but does not allow local ice-sheet formation as all snow melts during summer. Article in Journal/Newspaper Fennoscandia Greenland Ice Ice Sheet North Atlantic permafrost University of Western Sydney (UWS): Research Direct Greenland Boreas 39 2 436 456 |
institution |
Open Polar |
collection |
University of Western Sydney (UWS): Research Direct |
op_collection_id |
ftunivwestsyd |
language |
English |
topic |
XXXXXX - Unknown vegetation dynamics paleoclimatology isotopes |
spellingShingle |
XXXXXX - Unknown vegetation dynamics paleoclimatology isotopes Kjellstrom, Erik Brandefelt, Jenny Naslund, Jens-Ove Smith, Benjamin (R19508) Strandberg, Gustav Voelker, Antje H. Wohlfarth, Barbara Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial |
topic_facet |
XXXXXX - Unknown vegetation dynamics paleoclimatology isotopes |
description |
State-of-the-art climate models were used to simulate climate conditions in Europe during Greenland Stadial (GS) 12 at 44ka BP. The models employed for these simulations were: (i) a fully coupled atmosphere–ocean global climate model (AOGCM), and (ii) a regional atmospheric climate model (RCM) to dynamically downscale results from the global model for a more detailed investigation of European climate conditions. The vegetation was simulated off-line by a dynamic vegetation model forced by the climate from the RCM. The resulting vegetation was then compared with the a priori vegetation used in the first simulation. In a subsequent step, the RCM was rerun to yield a new climate more consistent with the simulated vegetation. Forcing conditions included orbital forcing, land–sea distribution, ice-sheet configuration, and atmospheric greenhouse gas concentrations representative for 44 ka BP. The results show a cold climate on the global scale, with global annual mean surface temperatures 51C colder than the modern climate. This is still significantly warmer than temperatures derived from the same model system for the Last Glacial Maximum (LGM). Regional, northern European climate is much colder than today, but still significantly warmer than during the LGM. Comparisons between the simulated climate and proxy-based sea-surface temperature reconstructions show that the results are in broad agreement, albeit with a possible cold bias in parts of the North Atlantic in summer. Given a prescribed restricted Marine Isotope Stage 3 ice-sheet configuration, with large ice-free regions in Sweden and Finland, the AOGCM and RCM model simulations produce a cold and dry climate in line with the restricted ice-sheet configuration during GS 12. The simulated temperature climate, with prescribed ice-free conditions in south-central Fennoscandia, is favourable for the development of permafrost, but does not allow local ice-sheet formation as all snow melts during summer. |
author2 |
Hawkesbury Institute for the Environment (Host institution) |
format |
Article in Journal/Newspaper |
author |
Kjellstrom, Erik Brandefelt, Jenny Naslund, Jens-Ove Smith, Benjamin (R19508) Strandberg, Gustav Voelker, Antje H. Wohlfarth, Barbara |
author_facet |
Kjellstrom, Erik Brandefelt, Jenny Naslund, Jens-Ove Smith, Benjamin (R19508) Strandberg, Gustav Voelker, Antje H. Wohlfarth, Barbara |
author_sort |
Kjellstrom, Erik |
title |
Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial |
title_short |
Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial |
title_full |
Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial |
title_fullStr |
Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial |
title_full_unstemmed |
Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial |
title_sort |
simulated climate conditions in europe during the marine isotope stage 3 stadial |
publisher |
U.S., Wiley-Blackwell Publishing |
publishDate |
2010 |
url |
https://doi.org/10.1111/j.1502-3885.2010.00143.x http://handle.westernsydney.edu.au:8081/1959.7/uws:48506 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Fennoscandia Greenland Ice Ice Sheet North Atlantic permafrost |
genre_facet |
Fennoscandia Greenland Ice Ice Sheet North Atlantic permafrost |
op_relation |
Boreas--0300-9483--1502-3885 Vol. 39 Issue. 2 No. pp: 436-456 |
op_doi |
https://doi.org/10.1111/j.1502-3885.2010.00143.x |
container_title |
Boreas |
container_volume |
39 |
container_issue |
2 |
container_start_page |
436 |
op_container_end_page |
456 |
_version_ |
1765997520416145408 |