Asymmetric warming rates between warm and cold weather regimes in Europe
Abstract In Europe, the increase in temperatures caused by climate change has been particularly fast in the cold season. Although the magnitude of this change is relatively well known, less research has been done on how the increase of temperatures is manifested in different large‐scale weather type...
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ftdoajarticles:oai:doaj.org/article:1a67a48287a9493e9384bb91a5c161f3 2023-11-05T03:39:20+01:00 Asymmetric warming rates between warm and cold weather regimes in Europe Mika Rantanen Simon H. Lee Juha Aalto 2023-10-01T00:00:00Z https://doi.org/10.1002/asl.1178 https://doaj.org/article/1a67a48287a9493e9384bb91a5c161f3 EN eng Wiley https://doi.org/10.1002/asl.1178 https://doaj.org/toc/1530-261X 1530-261X doi:10.1002/asl.1178 https://doaj.org/article/1a67a48287a9493e9384bb91a5c161f3 Atmospheric Science Letters, Vol 24, Iss 10, Pp n/a-n/a (2023) atmospheric circulation climate change North Atlantic oscillation weather regimes Meteorology. Climatology QC851-999 article 2023 ftdoajarticles https://doi.org/10.1002/asl.1178 2023-10-08T00:39:07Z Abstract In Europe, the increase in temperatures caused by climate change has been particularly fast in the cold season. Although the magnitude of this change is relatively well known, less research has been done on how the increase of temperatures is manifested in different large‐scale weather types, called weather regimes. For example, one could expect that the weather patterns in which air is flowing from the rapidly‐warming Arctic would have warmed faster than other weather patterns in recent decades. Here we show that such an asymmetric warming actually occurs in the four Euro‐Atlantic weather regimes. In northern Europe, the weather regime which is typically associated with cold airmasses from the Arctic (NAO–) has warmed about 25% faster than the cold‐season days on average, and about 60% faster than the regime where the air flows from the North Atlantic (NAO+). Consequently, the weather regime that on average brings the coldest weather is warming the fastest in a large part of northern Europe. In contrast, the weather regime that typically brings the warmest weather has warmed the slowest, especially in the continental Europe. Our results provide a new perspective on the reported decrease of sub‐seasonal temperature variability. Article in Journal/Newspaper Arctic Climate change North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Atmospheric Science Letters 24 10 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
atmospheric circulation climate change North Atlantic oscillation weather regimes Meteorology. Climatology QC851-999 |
spellingShingle |
atmospheric circulation climate change North Atlantic oscillation weather regimes Meteorology. Climatology QC851-999 Mika Rantanen Simon H. Lee Juha Aalto Asymmetric warming rates between warm and cold weather regimes in Europe |
topic_facet |
atmospheric circulation climate change North Atlantic oscillation weather regimes Meteorology. Climatology QC851-999 |
description |
Abstract In Europe, the increase in temperatures caused by climate change has been particularly fast in the cold season. Although the magnitude of this change is relatively well known, less research has been done on how the increase of temperatures is manifested in different large‐scale weather types, called weather regimes. For example, one could expect that the weather patterns in which air is flowing from the rapidly‐warming Arctic would have warmed faster than other weather patterns in recent decades. Here we show that such an asymmetric warming actually occurs in the four Euro‐Atlantic weather regimes. In northern Europe, the weather regime which is typically associated with cold airmasses from the Arctic (NAO–) has warmed about 25% faster than the cold‐season days on average, and about 60% faster than the regime where the air flows from the North Atlantic (NAO+). Consequently, the weather regime that on average brings the coldest weather is warming the fastest in a large part of northern Europe. In contrast, the weather regime that typically brings the warmest weather has warmed the slowest, especially in the continental Europe. Our results provide a new perspective on the reported decrease of sub‐seasonal temperature variability. |
format |
Article in Journal/Newspaper |
author |
Mika Rantanen Simon H. Lee Juha Aalto |
author_facet |
Mika Rantanen Simon H. Lee Juha Aalto |
author_sort |
Mika Rantanen |
title |
Asymmetric warming rates between warm and cold weather regimes in Europe |
title_short |
Asymmetric warming rates between warm and cold weather regimes in Europe |
title_full |
Asymmetric warming rates between warm and cold weather regimes in Europe |
title_fullStr |
Asymmetric warming rates between warm and cold weather regimes in Europe |
title_full_unstemmed |
Asymmetric warming rates between warm and cold weather regimes in Europe |
title_sort |
asymmetric warming rates between warm and cold weather regimes in europe |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1002/asl.1178 https://doaj.org/article/1a67a48287a9493e9384bb91a5c161f3 |
genre |
Arctic Climate change North Atlantic North Atlantic oscillation |
genre_facet |
Arctic Climate change North Atlantic North Atlantic oscillation |
op_source |
Atmospheric Science Letters, Vol 24, Iss 10, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1002/asl.1178 https://doaj.org/toc/1530-261X 1530-261X doi:10.1002/asl.1178 https://doaj.org/article/1a67a48287a9493e9384bb91a5c161f3 |
op_doi |
https://doi.org/10.1002/asl.1178 |
container_title |
Atmospheric Science Letters |
container_volume |
24 |
container_issue |
10 |
_version_ |
1781695147774312448 |