气候变化领域集成服务门户(CCPortal): Turbulent flux modelling with a simple 2-layer soil model and extrapolated surface temperature applied at Nam Co Lake basin on the Tibetan Plateau

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DOI	10.5194/hess-16-1095-2012
	Turbulent flux modelling with a simple 2-layer soil model and extrapolated surface temperature applied at Nam Co Lake basin on the Tibetan Plateau
	Gerken, T.; Babel, W.; Hoffmann, A.; Biermann, T.; Herzog, M.; Friend, A. D.; Li, M.; Ma, Y.; Foken, T.; Graf, H-F
通讯作者	Gerken, T (通讯作者)
发表日期	2012
ISSN	1027-5606
EISSN	1607-7938
起始页码	1095
结束页码	1110
卷号	16 期号:4
英文摘要	This paper introduces a surface model with two soil-layers for use in a high-resolution circulation model that has been modified with an extrapolated surface temperature, to be used for the calculation of turbulent fluxes. A quadratic temperature profile based on the layer mean and base temperature is assumed in each layer and extended to the surface. The model is tested at two sites on the Tibetan Plateau near Nam Co Lake during four days during the 2009 Monsoon season. In comparison to a two-layer model without explicit surface temperature estimate, there is a greatly reduced delay in diurnal flux cycles and the modelled surface temperature is much closer to observations. Comparison with a SVAT model and eddy covariance measurements shows an overall reasonable model performance based on RMSD and cross correlation comparisons between the modified and original model. A potential limitation of the model is the need for careful initialisation of the initial soil temperature profile, that requires field measurements. We show that the modified model is capable of reproducing fluxes of similar magnitudes and dynamics when compared to more complex methods chosen as a reference.
关键词	ENERGY-BALANCE CLOSURE BOUNDARY-LAYER LAND-SURFACE BIOSPHERE MODEL BARE-SOIL WATER PARAMETERIZATION ATMOSPHERE EVAPORATION CLIMATE
语种	英语
WOS研究方向	Geology ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000304049500004
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/258064
推荐引用方式 GB/T 7714	Gerken, T.,Babel, W.,Hoffmann, A.,et al. Turbulent flux modelling with a simple 2-layer soil model and extrapolated surface temperature applied at Nam Co Lake basin on the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2012,16(4).
APA	Gerken, T..,Babel, W..,Hoffmann, A..,Biermann, T..,Herzog, M..,...&Graf, H-F.(2012).Turbulent flux modelling with a simple 2-layer soil model and extrapolated surface temperature applied at Nam Co Lake basin on the Tibetan Plateau.HYDROLOGY AND EARTH SYSTEM SCIENCES,16(4).
MLA	Gerken, T.,et al."Turbulent flux modelling with a simple 2-layer soil model and extrapolated surface temperature applied at Nam Co Lake basin on the Tibetan Plateau".HYDROLOGY AND EARTH SYSTEM SCIENCES 16.4(2012).