干旱区生态环境知识资源中心(Arid): Simulated effects of land immersion on regional arid climate: a case study of the pre-Saharan playa of Chott el-Jerid (south of Tunisia)

Arid

DOI	10.1007/s00704-019-03083-5
	Simulated effects of land immersion on regional arid climate: a case study of the pre-Saharan playa of Chott el-Jerid (south of Tunisia)
	Fathalli, Bilel 1; Castel, Thierry 2; Pohl, Benjamin 2
通讯作者	Fathalli, Bilel
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2020
卷号	140 期号:1-2 页码:231-250
英文摘要	The potential effects on the regional climate induced by partially immersing the arid pre-Saharan playa basin of Chott el-Jerid (south of Tunisia) are investigated by comparing two multi-year (1991-2011) sets of numerical simulations each consisting of ten-member ensemble and performed using the WRF regional climate model. The first WRF ensemble is performed under current land use and land cover, while the second is carried out after introducing a virtual large and shallow surface water reservoir (a lake) in Chott el-Jerid. The most pronounced effects generated by the artificial lake are circumscribed over its surface and slightly spread downwind to the other parts of the Chott. The lake has a clear moderating effect on near-surface air temperatures by increasing (decreasing) the wintertime (summertime) air temperatures. Sensible heat fluxes are remarkably increased in winter and decreased in summer over the lake following the temperature gradient between the lake surface and the overlying atmosphere. Latent heat fluxes, moisture convergence, and water vapor mixing ratio are increased over the lake throughout the year, especially in winter. The lake also induces domain-wide decreased (increased) surface pressures and land (lake) breeze circulation in winter (summer). Simulated rainfall amounts are most increased over the lake in winter likely because of an enhanced atmospheric instability, while they slightly decrease in summer.
英文关键词	Artificial lake Chott el-Jerid WRF ensembles Regional arid climate
类型	Article
语种	英语
国家	Tunisia ; France
收录类别	SCI-E
WOS记录号	WOS:000515939900001
WOS关键词	LAURENTIAN GREAT-LAKES ; IMPACT ; SCALE ; PRECIPITATION ; DEFORESTATION ; COVER ; MODEL ; VARIABILITY ; PATTERNS
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/2XILL650/315661
作者单位	1.Tunisian Minist Agr Water Resources & Fisheries, Tunis, Tunisia; 2.Univ Bourgogne Franche Comte, CNRS, UMR6282, Ctr Rech Climatol,Biogeosci, Dijon, France
推荐引用方式 GB/T 7714	Fathalli, Bilel,Castel, Thierry,Pohl, Benjamin. Simulated effects of land immersion on regional arid climate: a case study of the pre-Saharan playa of Chott el-Jerid (south of Tunisia)[J],2020,140(1-2):231-250.
APA	Fathalli, Bilel,Castel, Thierry,&Pohl, Benjamin.(2020).Simulated effects of land immersion on regional arid climate: a case study of the pre-Saharan playa of Chott el-Jerid (south of Tunisia).THEORETICAL AND APPLIED CLIMATOLOGY,140(1-2),231-250.
MLA	Fathalli, Bilel,et al."Simulated effects of land immersion on regional arid climate: a case study of the pre-Saharan playa of Chott el-Jerid (south of Tunisia)".THEORETICAL AND APPLIED CLIMATOLOGY 140.1-2(2020):231-250.