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DOI	10.5194/hess-17-1607-2013
	Estimation of surface energy fluxes under complex terrain of Mt. Qomolangma over the Tibetan Plateau
	Chen, X.; Su, Z.; Ma, Y.; Yang, K.; Wang, B.
通讯作者	Chen, X (通讯作者)
发表日期	2013
ISSN	1027-5606
EISSN	1607-7938
起始页码	1607
结束页码	1618
卷号	17 期号:4
英文摘要	Surface solar radiation is an important parameter in surface energy balance models and in estimation of evapotranspiration. This study developed a DEM based radiation model to estimate instantaneous clear sky solar radiation for surface energy balance system to obtain accurate energy absorbed by the mountain surface. Efforts to improve spatial accuracy of satellite based surface energy budget in mountainous regions were made in this work. Based on eight scenes of Landsat TM/ETM+ (Thematic Mapper/Enhanced Thematic Mapper+) data and observations around the Qomolangma region of the Tibetan Plateau, the topographical enhanced surface energy balance system (TESEBS) was tested for deriving net radiation, ground heat flux, sensible heat flux and latent heat flux distributions over the heterogeneous land surface. The land surface energy fluxes over the study area showed a wide range in accordance with the surface features and their thermodynamic states. The model was validated by observations at QOMS/CAS site in the research area with a reasonable accuracy. The mean bias of net radiation, sensible heat flux, ground heat flux and latent heat flux is lower than 23.6 W m(-2). The surface solar radiation estimated by the DEM based radiation model developed by this study has a mean bias as low as -9.6 W m(-2). TESEBS has a decreased mean bias of about 5.9 W m(-2) and 3.4 W m(-2) for sensible heat and latent heat flux, respectively, compared to the Surface Energy Balance System (SEBS).
关键词	BALANCE SYSTEM SEBS ATMOSPHERE-LAND INTERACTION DIRECT SOLAR TRANSMITTANCE BROAD-BAND MODELS HEAT FLUXES NET-RADIATION REFERENCE EVAPOTRANSPIRATION IRRADIANCE PREDICTIONS ROUGHNESS HEIGHT ASIAN MONSOON
语种	英语
WOS研究方向	Geology ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000318440800025
来源期刊	HYDROLOGY AND EARTH SYSTEM SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258114
推荐引用方式 GB/T 7714	Chen, X.,Su, Z.,Ma, Y.,et al. Estimation of surface energy fluxes under complex terrain of Mt. Qomolangma over the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2013,17(4).
APA	Chen, X.,Su, Z.,Ma, Y.,Yang, K.,&Wang, B..(2013).Estimation of surface energy fluxes under complex terrain of Mt. Qomolangma over the Tibetan Plateau.HYDROLOGY AND EARTH SYSTEM SCIENCES,17(4).
MLA	Chen, X.,et al."Estimation of surface energy fluxes under complex terrain of Mt. Qomolangma over the Tibetan Plateau".HYDROLOGY AND EARTH SYSTEM SCIENCES 17.4(2013).