气候变化领域集成服务门户(CCPortal): The Extraordinary March 2022 East Antarctica Heat Wave. Part I: Observations and Meteorological Drivers

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DOI	10.1175/JCLI-D-23-0175.1
	The Extraordinary March 2022 East Antarctica Heat Wave. Part I: Observations and Meteorological Drivers
	Wille, Jonathan D.; Alexander, Simon P.; Amory, Charles; Baiman, Rebecca; Barthelemy, Leonard; Bergstrom, Dana M.; Berne, Alexis; Binder, Hanin; Blanchet, Juliette; Bozkurt, Deniz; Bracegirdle, Thomas J.; Casado, Mathieu; Choi, Taejin; Clem, Kyle R.; Codron, Francis; Datta, Rajashree; Di Battista, Stefano; Favier, Vincent; Francis, Diana; Fraser, Alexander D.; Fourre, Elise; Garreaud, Rene D.; Genthon, Christophe; Gorodetskaya, Irina, V; Gonzalez-Herrero, Sergi; Heinrich, Victoria J.; Hubert, Guillaume; Joos, Hanna; Kim, Seong-Joong; King, John C.; Kittel, Christoph; Landais, Amaelle; Lazzara, Matthew; Leonard, Gregory H.; Lieser, Jan L.; Maclennan, Michelle; Mikolajczyk, David; Neff, Peter; Ollivier, Ines; Picard, Ghislain; Pohl, Benjamin; Ralph, F. Martin; Rowe, Penny; Schlosser, Elisabeth; Shields, Christine A.; Smith, Inga J.; Sprenger, Michael; Trusel, Luke; Udy, Danielle; Vance, Tessa; Walker, Catherine; Wever, Nander; Zou, Xun
发表日期	2024
ISSN	0894-8755
EISSN	1520-0442
起始页码	37
结束页码	3
卷号	37 期号:3
英文摘要	Between 15 and 19 March 2022, East Antarctica experienced an exceptional heat wave with widespread 30 degrees-40 degrees C temperature anomalies across the ice sheet. This record-shattering event saw numerous monthly temperature records being broken including a new all-time temperature record of -9.4 degrees C on 18 March at Concordia Station despite March typically being a transition month to the Antarctic coreless winter. The driver for these temperature extremes was an intense atmospheric river advecting subtropical/midlatitude heat and moisture deep into the Antarctic interior. The scope of the temperature records spurred a large, diverse collaborative effort to study the heat wave's meteorological drivers, impacts, and historical climate context. Here we focus on describing those temperature records along with the intricate meteorological drivers that led to the most intense atmospheric river observed over East Antarctica. These efforts describe the Rossby wave activity forced from intense tropical convection over the Indian Ocean. This led to an atmospheric river and warm conveyor belt intensification near the coastline, which reinforced atmospheric blocking deep into East Antarctica. The resulting moisture flux and upper-level warm-air advection eroded the typical surface temperature inversions over the ice sheet. At the peak of the heat wave, an area of 3.3 million km(2) in East Antarctica exceeded previous March monthly temperature records. Despite a temperature anomaly return time of about 100 years, a closer recurrence of such an event is possible under future climate projections. In Part II we describe the various impacts this extreme event had on the East Antarctic cryosphere. SIGNIFICANCE STATEMENT: In March 2022, a heat wave and atmospheric river caused some of the highest temperature anomalies ever observed globally and captured the attention of the Antarctic science community. Using our diverse collective expertise, we explored the causes of the event and have placed it within a historical climate context. One key takeaway is that Antarctic climate extremes are highly sensitive to perturbations in the midlatitudes and subtropics. This heat wave redefined our expectations of the Antarctic climate. Despite the rare chance of occurrence based on past climate, a future temperature extreme event of similar magnitude is possible, especially given anthropogenic climate change.
英文关键词	Antarctica; Atmospheric river; Extreme events; Automatic weather stations; Climate records
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001190317700001
来源期刊	JOURNAL OF CLIMATE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/305586
作者单位	Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); Swiss Federal Institutes of Technology Domain; ETH Zurich; Australian Antarctic Division; University of Tasmania; University of Colorado System; University of Colorado Boulder; Centre National de la Recherche Scientifique (CNRS); Museum National d'Histoire Naturelle (MNHN); Sorbonne Universite; Institut de Recherche pour le Developpement (IRD); University of Wollongong; University of Johannesburg; Swiss Federal Institutes of Technology Domain; Ecole Polytechnique Federale de Lausanne; Universidad de Valparaiso; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC); NERC British Antarctic Survey; Universite Paris Saclay; CEA; Centre National de la Recherche Scientifique (CNRS); Korea Polar Research Institute (KOPRI); Victoria University Wellington; Khalifa University of Science & Technology; Universidad de Chile; Institut Polytechnique de Paris; Ecole Polytechnique; Universite PSL; Sorbonne Universite; Ecole des P...
推荐引用方式 GB/T 7714	Wille, Jonathan D.,Alexander, Simon P.,Amory, Charles,et al. The Extraordinary March 2022 East Antarctica Heat Wave. Part I: Observations and Meteorological Drivers[J],2024,37(3).
APA	Wille, Jonathan D..,Alexander, Simon P..,Amory, Charles.,Baiman, Rebecca.,Barthelemy, Leonard.,...&Zou, Xun.(2024).The Extraordinary March 2022 East Antarctica Heat Wave. Part I: Observations and Meteorological Drivers.JOURNAL OF CLIMATE,37(3).
MLA	Wille, Jonathan D.,et al."The Extraordinary March 2022 East Antarctica Heat Wave. Part I: Observations and Meteorological Drivers".JOURNAL OF CLIMATE 37.3(2024).