干旱区生态环境知识资源中心(Arid): Benchmark Thermodynamic Contributors to the Growth and Decay of the Regional Extreme Surface Temperature

Arid

DOI	10.1175/JCLI-D-23-0368.1
	Benchmark Thermodynamic Contributors to the Growth and Decay of the Regional Extreme Surface Temperature
	Kim, Dong Wan; Lee, Sukyoung; Clark, Joseph P.; Feldstein, Steven B.
通讯作者	Kim, DW
来源期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
EISSN	1520-0442
出版年	2024
卷号	37 期号:7 页码:2347-2359
英文摘要	A thermodynamic energy budget analysis is applied to the lowest model level of the ERA5 dataset to investigate the mechanisms that drive the growth and decay of extreme positive surface air temperature (SAT) events. Regional and seasonal variation of the mechanisms are investigated. For each grid point on Earth's surface, a separate composite analysis is performed for extreme SAT events, which are days when temperature anomaly exceeds the 95th percentile. Among the dynamical terms, horizontal temperature advection of the climatological temperature by the anomalous wind dominates SAT anomaly growth over the extratropics, while nonlinear horizontal temperature advection is a major factor over high -latitude regions and the adiabatic warming is important over major mountainous regions. During the decay period, advection of the climatological temperature by the anomalous wind sustains the warming while nonlinear advection becomes the dominant decay mechanism. Among diabatic heating processes, vertical mixing contributes to the SAT anomaly growth over most locations while longwave radiative cooling hinders SAT anomaly growth, especially over the ocean. However, over arid regions during summer, longwave heating largely contributes to SAT anomaly growth while the vertical mixing dampens the SAT anomaly growth. During the decay period, both longwave cooling and vertical mixing contribute to SAT anomaly decay with more pronounced effects over the ocean and land, respectively. These regional and seasonal characteristics of the processes that drive extreme SAT events can serve as a benchmark for understanding the future behavior of extreme weather.
英文关键词	Extreme events Heat wave Surface temperature
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001186249100001
WOS关键词	CLIMATE-CHANGE
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404417
推荐引用方式 GB/T 7714	Kim, Dong Wan,Lee, Sukyoung,Clark, Joseph P.,et al. Benchmark Thermodynamic Contributors to the Growth and Decay of the Regional Extreme Surface Temperature[J],2024,37(7):2347-2359.
APA	Kim, Dong Wan,Lee, Sukyoung,Clark, Joseph P.,&Feldstein, Steven B..(2024).Benchmark Thermodynamic Contributors to the Growth and Decay of the Regional Extreme Surface Temperature.JOURNAL OF CLIMATE,37(7),2347-2359.
MLA	Kim, Dong Wan,et al."Benchmark Thermodynamic Contributors to the Growth and Decay of the Regional Extreme Surface Temperature".JOURNAL OF CLIMATE 37.7(2024):2347-2359.