Contrasting interannual impacts of European and Greenland blockings on the winter North Atlantic storm track
Based on the daily reanalysis, the present study examines the interannual influences of the European blocking (EB) and Greenland blocking (GB) frequencies on the winter North Atlantic storm track (WNAST) intensity. There are contrasting relationships between the two types of atmospheric blockings an...
Published in: | Environmental Research Letters |
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ftdoajarticles:oai:doaj.org/article:f98daa54bf4549dd97067776a859914c 2023-09-05T13:19:49+02:00 Contrasting interannual impacts of European and Greenland blockings on the winter North Atlantic storm track Minghao Yang Dehai Luo Weilai Shi Yao Yao Xin Li Xiong Chen 2021-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/ac2934 https://doaj.org/article/f98daa54bf4549dd97067776a859914c EN eng IOP Publishing https://doi.org/10.1088/1748-9326/ac2934 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ac2934 1748-9326 https://doaj.org/article/f98daa54bf4549dd97067776a859914c Environmental Research Letters, Vol 16, Iss 10, p 104036 (2021) European blocking Greenland blocking North Atlantic storm track interannual relationship Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2021 ftdoajarticles https://doi.org/10.1088/1748-9326/ac2934 2023-08-13T00:37:05Z Based on the daily reanalysis, the present study examines the interannual influences of the European blocking (EB) and Greenland blocking (GB) frequencies on the winter North Atlantic storm track (WNAST) intensity. There are contrasting relationships between the two types of atmospheric blockings and the WNAST. The EB and GB frequencies are significantly positively and negatively related to the WNAST intensity, respectively. Composite analysis shows a meridional dipole of the WNAST anomalies associated with both frequent EB and GB. The area of EB-related positive WNAST anomalies is obviously larger than that of the negative anomalies, which directly results in their in-phase relationship. However, the amplitudes of the GB-related negative WNAST anomalies that are larger than those of the positive anomalies directly lead to their out-of-phase relationship. The EB-related intensified WNAST is dependent on the enhanced baroclinic energy conversion and the strengthened atmospheric baroclinicity induced by the anomalous westerly winds on the northern side of the EB-related anticyclone. In contrast, the GB-related weakened WNAST is determined by the attenuated atmospheric baroclinicity and baroclinic energy conversion on the southern flank of the WNAST climatology. Article in Journal/Newspaper Greenland North Atlantic Directory of Open Access Journals: DOAJ Articles Greenland The Gib ENVELOPE(-57.531,-57.531,51.817,51.817) Environmental Research Letters 16 10 104036 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
European blocking Greenland blocking North Atlantic storm track interannual relationship Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
European blocking Greenland blocking North Atlantic storm track interannual relationship Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Minghao Yang Dehai Luo Weilai Shi Yao Yao Xin Li Xiong Chen Contrasting interannual impacts of European and Greenland blockings on the winter North Atlantic storm track |
topic_facet |
European blocking Greenland blocking North Atlantic storm track interannual relationship Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Based on the daily reanalysis, the present study examines the interannual influences of the European blocking (EB) and Greenland blocking (GB) frequencies on the winter North Atlantic storm track (WNAST) intensity. There are contrasting relationships between the two types of atmospheric blockings and the WNAST. The EB and GB frequencies are significantly positively and negatively related to the WNAST intensity, respectively. Composite analysis shows a meridional dipole of the WNAST anomalies associated with both frequent EB and GB. The area of EB-related positive WNAST anomalies is obviously larger than that of the negative anomalies, which directly results in their in-phase relationship. However, the amplitudes of the GB-related negative WNAST anomalies that are larger than those of the positive anomalies directly lead to their out-of-phase relationship. The EB-related intensified WNAST is dependent on the enhanced baroclinic energy conversion and the strengthened atmospheric baroclinicity induced by the anomalous westerly winds on the northern side of the EB-related anticyclone. In contrast, the GB-related weakened WNAST is determined by the attenuated atmospheric baroclinicity and baroclinic energy conversion on the southern flank of the WNAST climatology. |
format |
Article in Journal/Newspaper |
author |
Minghao Yang Dehai Luo Weilai Shi Yao Yao Xin Li Xiong Chen |
author_facet |
Minghao Yang Dehai Luo Weilai Shi Yao Yao Xin Li Xiong Chen |
author_sort |
Minghao Yang |
title |
Contrasting interannual impacts of European and Greenland blockings on the winter North Atlantic storm track |
title_short |
Contrasting interannual impacts of European and Greenland blockings on the winter North Atlantic storm track |
title_full |
Contrasting interannual impacts of European and Greenland blockings on the winter North Atlantic storm track |
title_fullStr |
Contrasting interannual impacts of European and Greenland blockings on the winter North Atlantic storm track |
title_full_unstemmed |
Contrasting interannual impacts of European and Greenland blockings on the winter North Atlantic storm track |
title_sort |
contrasting interannual impacts of european and greenland blockings on the winter north atlantic storm track |
publisher |
IOP Publishing |
publishDate |
2021 |
url |
https://doi.org/10.1088/1748-9326/ac2934 https://doaj.org/article/f98daa54bf4549dd97067776a859914c |
long_lat |
ENVELOPE(-57.531,-57.531,51.817,51.817) |
geographic |
Greenland The Gib |
geographic_facet |
Greenland The Gib |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
Environmental Research Letters, Vol 16, Iss 10, p 104036 (2021) |
op_relation |
https://doi.org/10.1088/1748-9326/ac2934 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ac2934 1748-9326 https://doaj.org/article/f98daa54bf4549dd97067776a859914c |
op_doi |
https://doi.org/10.1088/1748-9326/ac2934 |
container_title |
Environmental Research Letters |
container_volume |
16 |
container_issue |
10 |
container_start_page |
104036 |
_version_ |
1776200618234347520 |