气候变化领域集成服务门户(CCPortal): Precipitation response to extreme soil moisture conditions over the Mediterranean

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DOI	10.1007/s00382-020-05519-5
	Precipitation response to extreme soil moisture conditions over the Mediterranean
	Ardilouze C.; Materia S.; Batté L.; Benassi M.; Prodhomme C.
发表日期	2020
ISSN	0930-7575
英文摘要	The intimate link between soil moisture and precipitation makes it a “chicken-and-egg situation” that challenges climate studies of the continental water cycle. This association is particularly acute over the Mediterranean, increasingly exposed to droughts with climate change. This study aims at deciphering the impact of spring soil moisture state in the Mediterranean on subsequent warm season precipitation. In an idealized setup, two distinct climate models are used to generate extreme dry or wet soil conditions, and run climate simulations initialized and/or forced by these conditions. Changes in precipitation distribution and persistence are analyzed and where applicable compared to composites from a reanalysis. Spring soil moisture anomalies are found to be very persistent, but the precipitation response is largely model dependent. Overall, dry soils lead to a reduction of precipitation for early summer months and conversely for wet soils although with a fainter and less robust signal. On the other hand, wet soils tend to favor the persistence of precipitation throughout summer over several sub-regions. Our results highlight the stringent need to reduce the wide array of uncertainties associated to soil moisture, land-atmosphere coupling and convection in climate models, before ascertaining that soil moisture initialization could provide more skillful sub-seasonal to seasonal precipitation prediction. © 2020, The Author(s).
英文关键词	Land-atmosphere coupling; Mediterranean; Precipitation; Soil moisture
语种	英语
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/145649
作者单位	CNRM, Université de Toulouse, Météo France, CNRS, Toulouse, France; Fondazione Centro-Euro Mediterraneo sui Cambiamenti Climatici (CMCC), Bologna, Italy; Group of Meteorology, Universitat de Barcelona (UB), Barcelona, Spain; Barcelona Supercomputing Center (BSC), Barcelona, Spain
推荐引用方式 GB/T 7714	Ardilouze C.,Materia S.,Batté L.,et al. Precipitation response to extreme soil moisture conditions over the Mediterranean[J],2020.
APA	Ardilouze C.,Materia S.,Batté L.,Benassi M.,&Prodhomme C..(2020).Precipitation response to extreme soil moisture conditions over the Mediterranean.Climate Dynamics.
MLA	Ardilouze C.,et al."Precipitation response to extreme soil moisture conditions over the Mediterranean".Climate Dynamics (2020).