Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model
Ensemble simulations with the Arctic coupled regional climate model HIRHAM-NAOSIM have been analyzed to investigate atmospheric feedbacks to September sea-ice anomalies in the Arctic in autumn and the following winter. Different “low minus high ice” composites have been calculated using selected mod...
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ftarcticportal:oai:generic.eprints.org:2662 2023-12-03T10:08:34+01:00 Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model Rinke, Annette Handorf, Dörthe Dorn, Wolfgang Dethloff, Klaus Moore, John C Zhang, Xiangdong 2018-09 application/pdf http://library.arcticportal.org/2662/ http://library.arcticportal.org/2662/1/A1803002.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2662/1/A1803002.pdf Rinke, Annette and Handorf, Dörthe and Dorn, Wolfgang and Dethloff, Klaus and Moore, John C and Zhang, Xiangdong (2018) Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model. Advances in Polar Science, 29 (3). pp. 156-164. Atmosphere Cryosphere Oceans Article PeerReviewed 2018 ftarcticportal 2023-11-08T23:54:41Z Ensemble simulations with the Arctic coupled regional climate model HIRHAM-NAOSIM have been analyzed to investigate atmospheric feedbacks to September sea-ice anomalies in the Arctic in autumn and the following winter. Different “low minus high ice” composites have been calculated using selected model runs and different periods. This approach allows us to investigate the robustness of the simulated regional atmospheric feedbacks to detected sea-ice anomalies. Since the position and strength of the September sea-ice anomaly varies between the different “low minus high ice” composites, the related simulated atmospheric patterns in autumn differ depending on the specific surface heat flux forcing through the ocean-atmosphere interface. However, irrespective of those autumn differences, the regional atmospheric feedback in the following winter is rather insensitive to the applied compositing. Neither the selection of simulations nor the considered period impacts the results. The simulated consistent large-scale atmospheric circulation pattern shows a wave-like pattern with positive pressure anomaly over the region of the Barents/Kara Seas and Scandinavia/western Russia (“Scandinavian-Ural blocking”) and negative pressure anomaly over the East Siberian/Laptev Seas. Article in Journal/Newspaper Advances in Polar Science Arctic Arctic laptev Polar Science Polar Science Sea ice Arctic Portal Library Arctic |
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Open Polar |
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Arctic Portal Library |
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ftarcticportal |
language |
English |
topic |
Atmosphere Cryosphere Oceans |
spellingShingle |
Atmosphere Cryosphere Oceans Rinke, Annette Handorf, Dörthe Dorn, Wolfgang Dethloff, Klaus Moore, John C Zhang, Xiangdong Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model |
topic_facet |
Atmosphere Cryosphere Oceans |
description |
Ensemble simulations with the Arctic coupled regional climate model HIRHAM-NAOSIM have been analyzed to investigate atmospheric feedbacks to September sea-ice anomalies in the Arctic in autumn and the following winter. Different “low minus high ice” composites have been calculated using selected model runs and different periods. This approach allows us to investigate the robustness of the simulated regional atmospheric feedbacks to detected sea-ice anomalies. Since the position and strength of the September sea-ice anomaly varies between the different “low minus high ice” composites, the related simulated atmospheric patterns in autumn differ depending on the specific surface heat flux forcing through the ocean-atmosphere interface. However, irrespective of those autumn differences, the regional atmospheric feedback in the following winter is rather insensitive to the applied compositing. Neither the selection of simulations nor the considered period impacts the results. The simulated consistent large-scale atmospheric circulation pattern shows a wave-like pattern with positive pressure anomaly over the region of the Barents/Kara Seas and Scandinavia/western Russia (“Scandinavian-Ural blocking”) and negative pressure anomaly over the East Siberian/Laptev Seas. |
format |
Article in Journal/Newspaper |
author |
Rinke, Annette Handorf, Dörthe Dorn, Wolfgang Dethloff, Klaus Moore, John C Zhang, Xiangdong |
author_facet |
Rinke, Annette Handorf, Dörthe Dorn, Wolfgang Dethloff, Klaus Moore, John C Zhang, Xiangdong |
author_sort |
Rinke, Annette |
title |
Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model |
title_short |
Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model |
title_full |
Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model |
title_fullStr |
Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model |
title_full_unstemmed |
Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model |
title_sort |
atmospheric feedbacks on arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
2018 |
url |
http://library.arcticportal.org/2662/ http://library.arcticportal.org/2662/1/A1803002.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Advances in Polar Science Arctic Arctic laptev Polar Science Polar Science Sea ice |
genre_facet |
Advances in Polar Science Arctic Arctic laptev Polar Science Polar Science Sea ice |
op_relation |
http://library.arcticportal.org/2662/1/A1803002.pdf Rinke, Annette and Handorf, Dörthe and Dorn, Wolfgang and Dethloff, Klaus and Moore, John C and Zhang, Xiangdong (2018) Atmospheric feedbacks on Arctic summer sea-ice anomalies in ensemble simulations of a coupled regional climate model. Advances in Polar Science, 29 (3). pp. 156-164. |
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1784254587915468800 |