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DOI	10.1002/joc.6981
	Assessment of surface exchange coefficients in the Noah-MP land surface model for different land-cover types in China
	Zhang, Xia; Chen, Liang; Ma, Zhuguo; Gao, Yanhong
通讯作者	Chen, L (通讯作者)，Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Res Temperate East A, Beijing, Peoples R China.
发表日期	2021
ISSN	0899-8418
EISSN	1097-0088
起始页码	2638
结束页码	2659
卷号	41 期号:4
英文摘要	The parameterization of surface exchange coefficients (C-h) representing land-atmosphere coupling strength plays a key role in land surface modelling. Previous studies have found that land-atmosphere coupling in land surface models (LSMs) is largely overestimated, which affects the predictability of weather and climate evolution. To improve the representation of land-atmosphere interactions in LSMs, this study investigated the impact of dynamic canopy-height-dependent coupling strength in an offline Noah LSM with multi-parameterization options (Noah-MP) when applied to China. Comparison with the default Noah-MP LSM showed that the dynamic scheme significantly improved the C-h calculations and realistically reduced the biases of simulated surface energy and water components against observations. It is noteworthy that the improvements brought about by the dynamic scheme differed across land-cover types. The scheme was superior in reproducing the observed C-h as well as surface energy and water variables for short vegetation (grass, crops, and shrubs), whereas the improvement for tall canopy vegetation (forest) was not significant although the estimations were reasonable. The improved version benefits from the treatment of the roughness length for heat. Further, the scheme can better reproduce the observed surface thermal components, while the improvement in hydraulic variables (such as soil moisture) remains limited. Overall, the dynamic coupling scheme markedly affects the simulation of land-atmosphere interactions, and altering the dynamics of surface coupling has the potential to improve the representation of land-atmosphere interactions and, thus, the further development of LSM.
关键词	ENERGY-BALANCE CLOSURE SOIL-MOISTURE WATER-VAPOR FLUX MEASUREMENTS ROUGHNESS LENGTH HEAT-FLUX IMPACTS PARAMETERIZATION SCHEMES LAYER
英文关键词	land-atmosphere interaction; surface coupling strength; surface exchange coefficient; surface fluxes
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000606400300001
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254870
作者单位	[Zhang, Xia; Chen, Liang; Ma, Zhuguo] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Res Temperate East A, Beijing, Peoples R China; [Zhang, Xia; Ma, Zhuguo] Univ Chinese Acad Sci, Beijing, Peoples R China; [Gao, Yanhong] Fudan Univ, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China; [Gao, Yanhong] Fudan Univ, Inst Atmospher Sci, Shanghai, Peoples R China; [Gao, Yanhong] Chinese Acad Sci, Key Lab Land Surface Proc & Climate Change Cold, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xia,Chen, Liang,Ma, Zhuguo,et al. Assessment of surface exchange coefficients in the Noah-MP land surface model for different land-cover types in China[J]. 中国科学院西北生态环境资源研究院,2021,41(4).
APA	Zhang, Xia,Chen, Liang,Ma, Zhuguo,&Gao, Yanhong.(2021).Assessment of surface exchange coefficients in the Noah-MP land surface model for different land-cover types in China.INTERNATIONAL JOURNAL OF CLIMATOLOGY,41(4).
MLA	Zhang, Xia,et al."Assessment of surface exchange coefficients in the Noah-MP land surface model for different land-cover types in China".INTERNATIONAL JOURNAL OF CLIMATOLOGY 41.4(2021).