气候变化领域集成服务门户(CCPortal): Influence of thermodynamic soil and vegetation parameterizations on the simulation of soil temperature states and surface fluxes by the Noah LSM over a Tibetan plateau site

CCPortal

DOI	10.5194/hess-13-759-2009
	Influence of thermodynamic soil and vegetation parameterizations on the simulation of soil temperature states and surface fluxes by the Noah LSM over a Tibetan plateau site
	van der Velde, R.; Su, Z.; Ek, M.; Rodell, M.; Ma, Y.
通讯作者	van der Velde, R (通讯作者)
发表日期	2009
ISSN	1027-5606
EISSN	1607-7938
起始页码	759
结束页码	777
卷号	13 期号:6
英文摘要	In this paper, we investigate the ability of the Noah Land Surface Model (LSM) to simulate temperature states in the soil profile and surface fluxes measured during a 7-day dry period at a micrometeorological station on the Tibetan Plateau. Adjustments in soil and vegetation parameterizations required to ameliorate the Noah simulation on these two aspects are presented, which include: (1) differentiating the soil thermal properties of top- and subsoils, (2) investigation of the different numerical soil discretizations and (3) calibration of the parameters utilized to describe the transpiration dynamics of the Plateau vegetation. Through the adjustments in the parameterization of the soil thermal properties (STP) simulation of the soil heat transfer is improved, which results in a reduction of Root Mean Squared Differences (RMSD's) by 14%, 18% and 49% between measured and simulated skin, 5-cm and 25-cm soil temperatures, respectively. Further, decreasing the minimum stomatal resistance (R-c,R-min) and the optimum temperature for transpiration (T-opt) of the vegetation parameterization reduces RMSD's between measured and simulated energy balance components by 30%, 20% and 5% for the sensible, latent and soil heat flux, respectively.
关键词	LAND-SURFACE WATER-BALANCE HEAT-TRANSFER MODEL MOISTURE ENERGY SENSITIVITY VALIDATION IMPACT FIELD
语种	英语
WOS研究方向	Geology ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000267543200005
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/257695
推荐引用方式 GB/T 7714	van der Velde, R.,Su, Z.,Ek, M.,et al. Influence of thermodynamic soil and vegetation parameterizations on the simulation of soil temperature states and surface fluxes by the Noah LSM over a Tibetan plateau site[J]. 中国科学院青藏高原研究所,2009,13(6).
APA	van der Velde, R.,Su, Z.,Ek, M.,Rodell, M.,&Ma, Y..(2009).Influence of thermodynamic soil and vegetation parameterizations on the simulation of soil temperature states and surface fluxes by the Noah LSM over a Tibetan plateau site.HYDROLOGY AND EARTH SYSTEM SCIENCES,13(6).
MLA	van der Velde, R.,et al."Influence of thermodynamic soil and vegetation parameterizations on the simulation of soil temperature states and surface fluxes by the Noah LSM over a Tibetan plateau site".HYDROLOGY AND EARTH SYSTEM SCIENCES 13.6(2009).