Causes of the Extreme Hot Event on February 9, 2020, in Seymour Island, Antarctic Peninsula
On early February of 2020, two consecutive extreme warming events of three day interval at the similar location occurred over the Antarctic Peninsula (AP). The later event, that occurred on February 9, 2020, exhibited a second-highest temperature record of 15.5°C at Marambio station, located on Seym...
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ftdoajarticles:oai:doaj.org/article:4744fa9b0c1b4e20a3bfc01dd9b93dd5 2023-05-15T13:40:50+02:00 Causes of the Extreme Hot Event on February 9, 2020, in Seymour Island, Antarctic Peninsula Hyo-Jun Bae Seong-Joong Kim Baek-Min Kim Hataek Kwon 2022-05-01T00:00:00Z https://doi.org/10.3389/fenvs.2022.865775 https://doaj.org/article/4744fa9b0c1b4e20a3bfc01dd9b93dd5 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fenvs.2022.865775/full https://doaj.org/toc/2296-665X 2296-665X doi:10.3389/fenvs.2022.865775 https://doaj.org/article/4744fa9b0c1b4e20a3bfc01dd9b93dd5 Frontiers in Environmental Science, Vol 10 (2022) hot event Seymour island horizontal advection adiabatic warming insentropic drawdown Environmental sciences GE1-350 article 2022 ftdoajarticles https://doi.org/10.3389/fenvs.2022.865775 2022-12-30T23:53:50Z On early February of 2020, two consecutive extreme warming events of three day interval at the similar location occurred over the Antarctic Peninsula (AP). The later event, that occurred on February 9, 2020, exhibited a second-highest temperature record of 15.5°C at Marambio station, located on Seymour Island, northeast of the AP. To understand the possible cause of the extreme warming event, we analyzed extreme warming events that occurred on Seymour Island during February over the past 40 years by using observational data from Marambio station alongside the European Center for Medium-Range Weather Forecasts Reanalysis v5 (ERA5) data. The results revealed that the extreme warming event on February 9, 2020 occurred due to the foehn and large-scale horizontal advection. In foehn winds, radiative heating and isentropic drawdown occur simultaneously. The horizontal advection of heat, which leads to extreme warming events, is associated with the strong blocking high in the upper and lower atmosphere. Contrary to the average characteristics of extreme warming events in February over the past 40 years, the extreme warming on February 9, 2020, occurred not only in the AP but also throughout entire West Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island West Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Antarctic Peninsula Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) Marambio Station ENVELOPE(-56.626,-56.626,-64.242,-64.242) Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) The Antarctic West Antarctica Frontiers in Environmental Science 10 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
hot event Seymour island horizontal advection adiabatic warming insentropic drawdown Environmental sciences GE1-350 |
spellingShingle |
hot event Seymour island horizontal advection adiabatic warming insentropic drawdown Environmental sciences GE1-350 Hyo-Jun Bae Seong-Joong Kim Baek-Min Kim Hataek Kwon Causes of the Extreme Hot Event on February 9, 2020, in Seymour Island, Antarctic Peninsula |
topic_facet |
hot event Seymour island horizontal advection adiabatic warming insentropic drawdown Environmental sciences GE1-350 |
description |
On early February of 2020, two consecutive extreme warming events of three day interval at the similar location occurred over the Antarctic Peninsula (AP). The later event, that occurred on February 9, 2020, exhibited a second-highest temperature record of 15.5°C at Marambio station, located on Seymour Island, northeast of the AP. To understand the possible cause of the extreme warming event, we analyzed extreme warming events that occurred on Seymour Island during February over the past 40 years by using observational data from Marambio station alongside the European Center for Medium-Range Weather Forecasts Reanalysis v5 (ERA5) data. The results revealed that the extreme warming event on February 9, 2020 occurred due to the foehn and large-scale horizontal advection. In foehn winds, radiative heating and isentropic drawdown occur simultaneously. The horizontal advection of heat, which leads to extreme warming events, is associated with the strong blocking high in the upper and lower atmosphere. Contrary to the average characteristics of extreme warming events in February over the past 40 years, the extreme warming on February 9, 2020, occurred not only in the AP but also throughout entire West Antarctica. |
format |
Article in Journal/Newspaper |
author |
Hyo-Jun Bae Seong-Joong Kim Baek-Min Kim Hataek Kwon |
author_facet |
Hyo-Jun Bae Seong-Joong Kim Baek-Min Kim Hataek Kwon |
author_sort |
Hyo-Jun Bae |
title |
Causes of the Extreme Hot Event on February 9, 2020, in Seymour Island, Antarctic Peninsula |
title_short |
Causes of the Extreme Hot Event on February 9, 2020, in Seymour Island, Antarctic Peninsula |
title_full |
Causes of the Extreme Hot Event on February 9, 2020, in Seymour Island, Antarctic Peninsula |
title_fullStr |
Causes of the Extreme Hot Event on February 9, 2020, in Seymour Island, Antarctic Peninsula |
title_full_unstemmed |
Causes of the Extreme Hot Event on February 9, 2020, in Seymour Island, Antarctic Peninsula |
title_sort |
causes of the extreme hot event on february 9, 2020, in seymour island, antarctic peninsula |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fenvs.2022.865775 https://doaj.org/article/4744fa9b0c1b4e20a3bfc01dd9b93dd5 |
long_lat |
ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-56.626,-56.626,-64.242,-64.242) ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) |
geographic |
Antarctic Antarctic Peninsula Marambio Marambio Station Seymour Seymour Island The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula Marambio Marambio Station Seymour Seymour Island The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island West Antarctica |
op_source |
Frontiers in Environmental Science, Vol 10 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fenvs.2022.865775/full https://doaj.org/toc/2296-665X 2296-665X doi:10.3389/fenvs.2022.865775 https://doaj.org/article/4744fa9b0c1b4e20a3bfc01dd9b93dd5 |
op_doi |
https://doi.org/10.3389/fenvs.2022.865775 |
container_title |
Frontiers in Environmental Science |
container_volume |
10 |
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1766141033055256576 |