High-resolution modelling of interactions between soil moisture and convective development in a mountain enclosed Tibetan Basin (EI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	High-resolution modelling of interactions between soil moisture and convective development in a mountain enclosed Tibetan Basin (EI)
	Gerken T.; Babel W.; Herzog M.; Fuchs K.; Sun F.; Ma Y.; Foken T.; Graf H. F.
刊名	Hydrology and Earth System Sciences
	2015
卷号	19 期号:9 页码:4023-4040
英文摘要	The Tibetan Plateau plays a significant role in atmospheric circulation and the Asian monsoon system. Turbulent surface fluxes and the evolution of boundary-layer clouds to deep and moist convection provide a feedback system that modifies the plateau's surface energy balance on scales that are currently unresolved in mesoscale models. This work analyses the land surface's role and specifically the influence of soil moisture on the triggering of convection at a cross section of the Nam Co Lake basin, 150 km north of Lhasa using a cloud-resolving atmospheric model with a fully coupled surface. The modelled turbulent fluxes and development of convection compare reasonably well with the observed weather. The simulations span Bowen ratios of 0.5 to 2.5. It is found that convective development is the strongest at intermediate soil moisture. Dry cases with soils close to the permanent wilting point are moisture limited in convective development, while convection in wet soil moisture cases is limited by cloud cover reducing incoming solar radiation and sensible heat fluxes, which has a strong impact on the surface energy balance. This study also shows that local development of convection is an important mechanism for the upward transport of water vapour, which originates from the lake basin that can then be transported to dryer regions of the plateau. Both processes demonstrate the importance of soil moisture and surface-atmosphere interactions on the energy and hydrological cycles of the Tibetan Plateau. 2015 Author(s).
收录类别	EI
语种	英语
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/27121]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Gerken T.,Babel W.,Herzog M.,et al. High-resolution modelling of interactions between soil moisture and convective development in a mountain enclosed Tibetan Basin (EI)[J]. Hydrology and Earth System Sciences,2015,19(9):4023-4040.
APA	Gerken T..,Babel W..,Herzog M..,Fuchs K..,Sun F..,...&Graf H. F..(2015).High-resolution modelling of interactions between soil moisture and convective development in a mountain enclosed Tibetan Basin (EI).Hydrology and Earth System Sciences,19(9),4023-4040.
MLA	Gerken T.,et al."High-resolution modelling of interactions between soil moisture and convective development in a mountain enclosed Tibetan Basin (EI)".Hydrology and Earth System Sciences 19.9(2015):4023-4040.