干旱区生态环境知识资源中心(Arid): Development of a forecast-oriented kilometre-resolution ocean-atmosphere coupled system for western Europe and sensitivity study for a severe weather situation

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DOI	10.5194/nhess-22-1301-2022
	Development of a forecast-oriented kilometre-resolution ocean-atmosphere coupled system for western Europe and sensitivity study for a severe weather situation
	Pianezze, Joris; Beuvier, Jonathan; Brossier, Cindy Lebeaupin; Samson, Guillaume; Faure, Ghislain; Garric, Gilles
通讯作者	Beuvier, J
来源期刊	NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
ISSN	1561-8633
EISSN	1684-9981
出版年	2022
卷号	22 期号:4 页码:1301-1324
英文摘要	To improve high-resolution numerical environmental prediction, it is essential to represent ocean- atmosphere interactions properly, which is not the case in current operational regional forecasting systems used in western Europe. The objective of this paper is to present a new forecast-oriented coupled ocean-atmosphere system. This system uses the state-of-the-art numerical models AROME (cy43t2) and NEMO (v3.6) with a horizontal resolution of 2.5 km. The OASIS coupler (OASIS3MCT-4.0), implemented in the SurfEX surface scheme and in NEMO, is used to perform the communications between models. A sensitivity study of this system is carried out using 7 d simulations from 12 to 19 October 2018, characterized by extreme weather events (storms and heavy precipitation) in the area of interest. Comparisons with in situ and L3 satellite observations show that the fully coupled simulation reproduces the spatial and temporal evolution of the sea surface temperature and 10 m wind speed quantitatively well. Sensitivity analysis of ocean-atmosphere coupling shows that the use of an interactive and high-resolution sea surface temperature (SST), in contrast to actual numerical weather prediction (NWP) where SST is constant, modifies the atmospheric circulation and the location of heavy precipitation. Simulated oceanic fields show a large sensitivity to coupling when compared to the operational ocean forecast. The comparison to two distinct forced ocean simulations highlights that this sensitivity is mainly controlled by the change in the atmospheric model used to drive NEMO (AROME vs. IFS operational forecast), and less by the interactive air-sea exchanges. In particular, the oceanic boundary layer depths can vary by more than 40 % locally, between the two ocean-only experiments. This impact is amplified by the interactive coupling and is attributed to positive feedback between sea surface cooling and evaporation.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000782225600001
WOS关键词	DENSE WATER FORMATION ; MEDITERRANEAN AREA ; SURFACE PROCESSES ; IN-SITU ; SEA ; MODEL ; CIRCULATION ; CLIMATOLOGY ; SIMULATIONS ; IMPACT
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393840
推荐引用方式 GB/T 7714	Pianezze, Joris,Beuvier, Jonathan,Brossier, Cindy Lebeaupin,et al. Development of a forecast-oriented kilometre-resolution ocean-atmosphere coupled system for western Europe and sensitivity study for a severe weather situation[J],2022,22(4):1301-1324.
APA	Pianezze, Joris,Beuvier, Jonathan,Brossier, Cindy Lebeaupin,Samson, Guillaume,Faure, Ghislain,&Garric, Gilles.(2022).Development of a forecast-oriented kilometre-resolution ocean-atmosphere coupled system for western Europe and sensitivity study for a severe weather situation.NATURAL HAZARDS AND EARTH SYSTEM SCIENCES,22(4),1301-1324.
MLA	Pianezze, Joris,et al."Development of a forecast-oriented kilometre-resolution ocean-atmosphere coupled system for western Europe and sensitivity study for a severe weather situation".NATURAL HAZARDS AND EARTH SYSTEM SCIENCES 22.4(2022):1301-1324.