气候变化领域集成服务门户(CCPortal): Analysis of record-high temperature over southeast coastal China in winter 2018/19: The combined effect of mid: The high-latitude circulation systems and SST forcing over the north atlantic and tropical western pacific

CCPortal

DOI	10.1175/JCLI-D-19-0732.1
	Analysis of record-high temperature over southeast coastal China in winter 2018/19: The combined effect of mid: The high-latitude circulation systems and SST forcing over the north atlantic and tropical western pacific
	Jian Y.; Lin X.; Zhou W.; Jian M.; Leung M.Y.T.; Cheung P.K.Y.
发表日期	2020
ISSN	0894-8755
起始页码	8813
结束页码	8831
卷号	33 期号:20
英文摘要	In winter 2018/19, southeastern coastal China experienced extreme warm temperatures that were due to a weak East Asian winter monsoon. On the basis of observations from 10 meteorological stations and reanalysis data, the large-scale circulation patterns associated with this extreme warm winter and the possible driving mechanism of its related sea surface temperature (SST) anomalies are investigated in this study. During this winter, many places in this region reached their highest winter mean temperature record and had more extreme warm days and fewer extreme cold days relative to climatology. According to the circulation patterns during winter 2018/19, several large-scale circulation conditions associated mainly with the weak East Asian winter monsoon are identified: the eastward shift of the Siberian high and a shallower East Asian trough, which is related to the low blocking frequency over the Aleutian region, are both unfavorable for cold-air intrusion southward. Meanwhile, strong low-level southerly wind anomalies over southeastern China are related mainly to the 2018/19 El Niño event. Furthermore, the possible role of SST anomalies over the North Atlantic and tropical western Pacific Oceans is examined by using an atmospheric general circulation model, suggesting that both the ''tripole pattern'' of North Atlantic SST and tropical western Pacific SST anomalies in winter 2018/19 played a role in influencing the East Asian trough. The combined effect of all of these factors seems to be responsible for this extreme warm winter over southeastern coastal China. Ó 2020 American Meteorological Society.
英文关键词	Atmospheric temperature; Atmospheric thermodynamics; Meteorology; Surface waters; Tropics; American meteorological societies; Atmospheric general circulation models; East Asian winter monsoon; Large-scale circulation; Large-scale circulation patterns; Meteorological station; Sea surface temperature anomalies; Tropical Western Pacific; Oceanography; air-sea interaction; atmospheric circulation; climate change; cold air; high temperature; monsoon; sea surface temperature; seasonal variation; winter; Atlantic Ocean; Atlantic Ocean (North); Pacific Ocean; Pacific Ocean (Tropical)
语种	英语
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/171091
作者单位	Guy Carpenter Asia-Pacific Climate Impact Centre, School of Energy and Environment, City University of Hong Kong, Hong Kong, Hong Kong; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China; Key Laboratory of Regional Numerical Weather Prediction, Guangzhou Institute of Tropical and Marine Meteorology, Guangzhou, China; School of Atmospheric Sciences, Guangdong Prince Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-Sen University, Guangzhou, China; Center for Monsoon and Environment Research, Sun Yat-Sen University, Guangzhou, China; School of Ocean Science, Sun Yat-Sen University, Zhuhai, China
推荐引用方式 GB/T 7714	Jian Y.,Lin X.,Zhou W.,et al. Analysis of record-high temperature over southeast coastal China in winter 2018/19: The combined effect of mid: The high-latitude circulation systems and SST forcing over the north atlantic and tropical western pacific[J],2020,33(20).
APA	Jian Y.,Lin X.,Zhou W.,Jian M.,Leung M.Y.T.,&Cheung P.K.Y..(2020).Analysis of record-high temperature over southeast coastal China in winter 2018/19: The combined effect of mid: The high-latitude circulation systems and SST forcing over the north atlantic and tropical western pacific.Journal of Climate,33(20).
MLA	Jian Y.,et al."Analysis of record-high temperature over southeast coastal China in winter 2018/19: The combined effect of mid: The high-latitude circulation systems and SST forcing over the north atlantic and tropical western pacific".Journal of Climate 33.20(2020).