Temperature and wind climate of the Antarctic Peninsula as simulated by a high-resolution regional atmospheric climate model.
The latest polar version of the Regional Atmospheric Climate Model (RACMO2.3) has been applied to the Antarctic Peninsula (AP). In this study, the authors present results of a climate run at 5.5 km for the period 1979–2013, in which RACMO2.3 is forced by ERA-Interim atmospheric and ocean surface fie...
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American Meteorological Society
2015
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Online Access: | http://dro.dur.ac.uk/18214/ http://dro.dur.ac.uk/18214/1/18214.pdf https://doi.org/10.1175/JCLI-D-15-0060.1 |
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:18214 2023-05-15T14:02:14+02:00 Temperature and wind climate of the Antarctic Peninsula as simulated by a high-resolution regional atmospheric climate model. van Wessem, J.M. Reijmer, C.H. van de Berg, W.J. van den Broeke, M.R. Cook, A.J. van Ulft, L.H. van Meijgaard, E. 2015-09-11 application/pdf http://dro.dur.ac.uk/18214/ http://dro.dur.ac.uk/18214/1/18214.pdf https://doi.org/10.1175/JCLI-D-15-0060.1 unknown American Meteorological Society dro:18214 issn:0894-8755 issn: 1520-0442 doi:10.1175/JCLI-D-15-0060.1 http://dro.dur.ac.uk/18214/ http://dx.doi.org/10.1175/JCLI-D-15-0060.1 http://dro.dur.ac.uk/18214/1/18214.pdf © 2015 American Meteorological Society Journal of climate, 2015, Vol.28(18), pp.7306-7326 [Peer Reviewed Journal] Article PeerReviewed 2015 ftunivdurham https://doi.org/10.1175/JCLI-D-15-0060.1 2020-05-28T22:34:31Z The latest polar version of the Regional Atmospheric Climate Model (RACMO2.3) has been applied to the Antarctic Peninsula (AP). In this study, the authors present results of a climate run at 5.5 km for the period 1979–2013, in which RACMO2.3 is forced by ERA-Interim atmospheric and ocean surface fields, using an updated AP surface topography. The model results are evaluated with near-surface temperature and wind measurements from 12 manned and automatic weather stations and vertical profiles from balloon soundings made at three stations. The seasonal cycle of near-surface temperature and wind is simulated well, with most biases still related to the limited model resolution. High-resolution climate maps of temperature and wind showing that the AP climate exhibits large spatial variability are discussed. Over the steep and high mountains of the northern AP, large west-to-east climate gradients exist, while over the gentle southern AP mountains the near-surface climate is dominated by katabatic winds. Over the flat ice shelves, where katabatic wind forcing is weak, interannual variability in temperature is largest. Finally, decadal trends of temperature and wind are presented, and it is shown that recently there has been distinct warming over the northwestern AP and cooling over the rest of the AP, related to changes in sea ice cover. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ice Shelves Sea ice Durham University: Durham Research Online Antarctic Antarctic Peninsula The Antarctic Journal of Climate 28 18 7306 7326 |
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Open Polar |
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Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
description |
The latest polar version of the Regional Atmospheric Climate Model (RACMO2.3) has been applied to the Antarctic Peninsula (AP). In this study, the authors present results of a climate run at 5.5 km for the period 1979–2013, in which RACMO2.3 is forced by ERA-Interim atmospheric and ocean surface fields, using an updated AP surface topography. The model results are evaluated with near-surface temperature and wind measurements from 12 manned and automatic weather stations and vertical profiles from balloon soundings made at three stations. The seasonal cycle of near-surface temperature and wind is simulated well, with most biases still related to the limited model resolution. High-resolution climate maps of temperature and wind showing that the AP climate exhibits large spatial variability are discussed. Over the steep and high mountains of the northern AP, large west-to-east climate gradients exist, while over the gentle southern AP mountains the near-surface climate is dominated by katabatic winds. Over the flat ice shelves, where katabatic wind forcing is weak, interannual variability in temperature is largest. Finally, decadal trends of temperature and wind are presented, and it is shown that recently there has been distinct warming over the northwestern AP and cooling over the rest of the AP, related to changes in sea ice cover. |
format |
Article in Journal/Newspaper |
author |
van Wessem, J.M. Reijmer, C.H. van de Berg, W.J. van den Broeke, M.R. Cook, A.J. van Ulft, L.H. van Meijgaard, E. |
spellingShingle |
van Wessem, J.M. Reijmer, C.H. van de Berg, W.J. van den Broeke, M.R. Cook, A.J. van Ulft, L.H. van Meijgaard, E. Temperature and wind climate of the Antarctic Peninsula as simulated by a high-resolution regional atmospheric climate model. |
author_facet |
van Wessem, J.M. Reijmer, C.H. van de Berg, W.J. van den Broeke, M.R. Cook, A.J. van Ulft, L.H. van Meijgaard, E. |
author_sort |
van Wessem, J.M. |
title |
Temperature and wind climate of the Antarctic Peninsula as simulated by a high-resolution regional atmospheric climate model. |
title_short |
Temperature and wind climate of the Antarctic Peninsula as simulated by a high-resolution regional atmospheric climate model. |
title_full |
Temperature and wind climate of the Antarctic Peninsula as simulated by a high-resolution regional atmospheric climate model. |
title_fullStr |
Temperature and wind climate of the Antarctic Peninsula as simulated by a high-resolution regional atmospheric climate model. |
title_full_unstemmed |
Temperature and wind climate of the Antarctic Peninsula as simulated by a high-resolution regional atmospheric climate model. |
title_sort |
temperature and wind climate of the antarctic peninsula as simulated by a high-resolution regional atmospheric climate model. |
publisher |
American Meteorological Society |
publishDate |
2015 |
url |
http://dro.dur.ac.uk/18214/ http://dro.dur.ac.uk/18214/1/18214.pdf https://doi.org/10.1175/JCLI-D-15-0060.1 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Shelves Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Shelves Sea ice |
op_source |
Journal of climate, 2015, Vol.28(18), pp.7306-7326 [Peer Reviewed Journal] |
op_relation |
dro:18214 issn:0894-8755 issn: 1520-0442 doi:10.1175/JCLI-D-15-0060.1 http://dro.dur.ac.uk/18214/ http://dx.doi.org/10.1175/JCLI-D-15-0060.1 http://dro.dur.ac.uk/18214/1/18214.pdf |
op_rights |
© 2015 American Meteorological Society |
op_doi |
https://doi.org/10.1175/JCLI-D-15-0060.1 |
container_title |
Journal of Climate |
container_volume |
28 |
container_issue |
18 |
container_start_page |
7306 |
op_container_end_page |
7326 |
_version_ |
1766272397086818304 |