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DOI	10.1007/s00382-019-05038-y
	Climate diagnostics of the extreme floods in Peru during early 2017
	Son R.; Wang S.-Y.S.; Tseng W.-L.; Barreto Schuler C.W.; Becker E.; Yoon J.-H.
发表日期	2020
ISSN	0930-7575
起始页码	935
结束页码	945
卷号	54 期号:2020-01-02
英文摘要	From January through March 2017, a series of extreme precipitation events occurred in coastal Peru, causing severe floods with hundreds of human casualties and billions of dollars in economic losses. The extreme precipitation was a result of unusually strong recurrent patterns of atmospheric and oceanic conditions, including extremely warm coastal sea surface temperatures (SST) and weakened trade winds. These climatic features and their causal relationship with the Peruvian precipitation were examined. Diagnostic analysis and model experiments suggest that an atmospheric forcing in early 2017, which was moderately linked to the Trans-Niño Index (TNI), initiated the local SST warming along coastal Peru that later expanded to the equator. In January 2017, soil moisture was increased by an unusual expansion of Amazonian rainfall. By March, localized and robust SST warming provided positive feedback to the weakening of the trade winds, leading to increased onshore wind and a subsequent enhancement in rainfall. The analysis points to a tendency towards more frequent and stronger variations in the water vapor flux convergence along the equator, which is associated with the increased precipitation in coastal Peru. © 2019, The Author(s).
语种	英语
scopus关键词	air-sea interaction; atmospheric forcing; climate effect; climate feedback; coastal zone; El Nino; extreme event; flooding; precipitation intensity; sea surface temperature; trade wind; water flux; water vapor; Peru
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145718
作者单位	School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Buk-gu, Gwangju, 61005, South Korea; Department of Plans, Soils, and Climate, Utah State University, Logan, UT, United States; Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan; Dirección de Meteorología y Evaluación Ambiental Atmosférica, Servicio Nacional de Meteorología e Hidrología (SENAMHI), Lima, Peru; University of Miami Rosenstiel School of Marine and Atmospheric Sciences, Miami, FL, United States
推荐引用方式 GB/T 7714	Son R.,Wang S.-Y.S.,Tseng W.-L.,et al. Climate diagnostics of the extreme floods in Peru during early 2017[J],2020,54(2020-01-02).
APA	Son R.,Wang S.-Y.S.,Tseng W.-L.,Barreto Schuler C.W.,Becker E.,&Yoon J.-H..(2020).Climate diagnostics of the extreme floods in Peru during early 2017.Climate Dynamics,54(2020-01-02).
MLA	Son R.,et al."Climate diagnostics of the extreme floods in Peru during early 2017".Climate Dynamics 54.2020-01-02(2020).