气候变化领域集成服务门户(CCPortal): Temporal duration of the east Asian summer monsoon substantially affects surface energy exchange over the summer monsoon transition zone of China

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DOI	10.1175/JCLI-D-20-0102.1
	Temporal duration of the east Asian summer monsoon substantially affects surface energy exchange over the summer monsoon transition zone of China
	Li H.; Zhang Q.; Yue P.; Zhang L.; Niu X.; Zhang H.; Xing K.; Jing Y.; Shang G.
发表日期	2021
ISSN	08948755
起始页码	4643
结束页码	4660
卷号	34 期号:11
英文摘要	Investigating the response of land surface energy exchange to key climatic signals such as the East Asian summer monsoon (EASM) is essential for understanding the intensive interactions in the Earth system. This study focuses on the summer monsoon transition zone (SMTZ) in China, which has a climate rather sensitive to the EASM activity, and examined the response of land surface energy exchange over the SMTZ to summer monsoon activity. A flux evaluation of five reanalysis/modeling datasets indicates that JRA-55 (the Japanese 55-Year Reanalysis) reasonably represents interannual variations of surface heat fluxes over the SMTZ. The EASM activity is accurately identified in the SMTZ by introducing a monsoon temporal duration index (MTDI), which presents climate variations of summer rainfall and EASM activity better than commonly used summer monsoon indexes. Based on MTDI and long-term flux datasets, it was found that the interannual fluctuation of the EASM intensively controls surface energy partitioning and turbulent heat exchange but has a weak impact on radiative processes over the SMTZ. Furthermore, surface sensible and latent heat fluxes significantly responded to the influential period of the summer monsoon, exhibiting approximately quadratic/logarithmic relationships with the MTDI. More prominent interannual variabilities of turbulent heat fluxes were observed in weak summer monsoon years, during which an active interaction between surface energy exchange and a warming and drying climate occurred. An ensemble empirical mode decomposition (EEMD) analysis confirms that EASM activity dominates the quasi-biennial and multidecadal variations of turbulent heat fluxes over the SMTZ, which may be achieved by the transport of tropical quasi-biennial and Pacific decadal oscillation (PDO) signals to the midlatitudes of East Asia. The expected intensification of summer monsoon activity in the future may induce acceleration of energy and hydrological cycle and exert a substantial impact on the availability of water and the ecosystem stability over the SMTZ. © 2021 American Meteorological Society.
英文关键词	Atmosphere-land interaction; Fluxes; Interannual variability; Model evaluation/performance; Turbulence
语种	英语
scopus关键词	Ecosystems; Heat flux; Interfacial energy; Rain; Surface measurement; East Asian summer monsoon; Ensemble empirical mode decompositions (EEMD); Interannual fluctuations; Interannual variability; Multidecadal variations; Pacific decadal oscillation; Sensible and latent heat fluxes; Turbulent heat exchange; Atmospheric thermodynamics
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/178540
作者单位	Key Laboratory of Meteorological and Ecological Environment of Hebei Province, Shijiazhuang, China; Hebei Climate Center, Shijiazhuang, China; Gansu Key Laboratory of Arid Climatic Change and Reducing Disaster, Key Open Laboratory of Arid Climatic Change and Disaster Reduction of CMA, Institute of Arid Meteorology, China Meteorological Administration, Lanzhou, China; Reading Academy, Nanjing University of Information Science and Technology, Nanjing, China; College of Resources and Environmental Engineering, Tianshui Normal University, Tianshui, China; International Science and Technology Cooperation Base of Hebei Province, Hebei International Joint Research Center for Remote Sensing of Agricultural Drought Monitoring, School of Land Science and Space Planning, Hebei GEO University, Shijiazhuang, China
推荐引用方式 GB/T 7714	Li H.,Zhang Q.,Yue P.,et al. Temporal duration of the east Asian summer monsoon substantially affects surface energy exchange over the summer monsoon transition zone of China[J],2021,34(11).
APA	Li H..,Zhang Q..,Yue P..,Zhang L..,Niu X..,...&Shang G..(2021).Temporal duration of the east Asian summer monsoon substantially affects surface energy exchange over the summer monsoon transition zone of China.Journal of Climate,34(11).
MLA	Li H.,et al."Temporal duration of the east Asian summer monsoon substantially affects surface energy exchange over the summer monsoon transition zone of China".Journal of Climate 34.11(2021).