干旱区生态环境知识资源中心(Arid): Numerical Study of Impacts of Soil Moisture on the Diurnal and Seasonal Cycles of Sensible/Latent Heat Fluxes over Semi-arid Region

Arid

	Numerical Study of Impacts of Soil Moisture on the Diurnal and Seasonal Cycles of Sensible/Latent Heat Fluxes over Semi-arid Region
	SONG Yaoming; GUO Weidong; ZHANG Yaocun
来源期刊	Advances in Atmospheric Sciences
ISSN	0256-1530
出版年	2009
卷号	26 期号:2 页码:319-326
英文摘要	The semi-arid regions, as climatic and ecosystem transitional zones, are the most vulnerable to global environmental change. Earlier researches indicate that the semi-arid regions are characterized by strong land-atmosphere coupling in which soil moisture is the crucial variable in land surface processes. In this paper, we investigate the sensitivity of the sensible/latent heat fluxes to soil moisture during the growing season based on the enhanced observations at Tongyu in the Jilin province of China, a reference site of international Coordinated Energy and Water Cycle Observations Project (CEOP) in the semi-arid regions, by using a sophisticated land surface model (NCAR_CLM3.0). Comparisons between the observed and simulated sensible/latent heat fluxes indicate that the soil moisture has obvious effects on the sensible/latent heat fluxes in terms of diurnal cycle and seasonal evolution. Better representation of the soil moisture could improve the model performance to a large degree. Therefore, for the purpose of simulating the land-atmosphere interaction and predicting the climate and water resource changes in semi-arid regions, it is necessary to enhance the description of the soil moisture distribution both in the way of observation and its treatment in land surface models.
英文关键词	semi-arid region soil moisture latent/sensible heat flux diurnal cycle seasonal evolution
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:3786905
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335035
作者单位	SONG Yaoming, Department of Atmospheric Sciences, Nanjing University, Nanjing, Jiangsu 210093, China.; ZHANG Yaocun, Department of Atmospheric Sciences, Nanjing University, Nanjing, Jiangsu 210093, China.; GUO Weidong, Institute of Atmospheric Physics, Chinese Academy of Sciences, Key Laboratory of Regional Climate-Environment for Temperate East Asia (RCE-TEA), Beijing 100029, China.
推荐引用方式 GB/T 7714	SONG Yaoming,GUO Weidong,ZHANG Yaocun. Numerical Study of Impacts of Soil Moisture on the Diurnal and Seasonal Cycles of Sensible/Latent Heat Fluxes over Semi-arid Region[J],2009,26(2):319-326.
APA	SONG Yaoming,GUO Weidong,&ZHANG Yaocun.(2009).Numerical Study of Impacts of Soil Moisture on the Diurnal and Seasonal Cycles of Sensible/Latent Heat Fluxes over Semi-arid Region.Advances in Atmospheric Sciences,26(2),319-326.
MLA	SONG Yaoming,et al."Numerical Study of Impacts of Soil Moisture on the Diurnal and Seasonal Cycles of Sensible/Latent Heat Fluxes over Semi-arid Region".Advances in Atmospheric Sciences 26.2(2009):319-326.