气候变化领域集成服务门户(CCPortal): Augmentations to the Noah Model Physics for Application to the Yellow River Source Area. Part II: Turbulent Heat Fluxes and Soil Heat Transport

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DOI	10.1175/JHM-D-14-0199.1
	Augmentations to the Noah Model Physics for Application to the Yellow River Source Area. Part II: Turbulent Heat Fluxes and Soil Heat Transport
	Zheng, Donghai; van der Velde, Rogier; Su, Zhongbo; Wang, Xin; Wen, Jun; Booij, Martijn J.; Hoekstra, Arjen Y.; Chen, Yingying
通讯作者	Zheng, DH (通讯作者)
发表日期	2015
ISSN	1525-755X
EISSN	1525-7541
起始页码	2677
结束页码	2694
卷号	16 期号:6
英文摘要	This is the second part of a study on the assessment of the Noah land surface model (LSM) in simulating surface water and energy budgets in the high-elevation source region of the Yellow River. Here, there is a focus on turbulent heat fluxes and heat transport through the soil column during the monsoon season, whereas the first part of this study deals with the soil water flow. Four augmentations are studied for mitigating the overestimation of turbulent heat flux and underestimation of soil temperature measurements: 1) the muting effect of vegetation on the thermal heat conductivity k(h) is removed from the transport of heat from the first to the second soil layer, 2) the exponential decay factor beta(veg) imposed on kh is calculated using the ratio of the leaf area index (LAI) over the green vegetation fraction (GVF), 3) Zilitinkevich's empirical coefficient C-zil for turbulent heat transport is computed as a function of the momentum roughness length z(0,m), and 4) the impact of organic matter is considered in the parameterization of the thermal heat properties. Although usage of organic matter for calculating kh improves the correspondence between the estimates and laboratory measurements of heat conductivities, it is shown to have a relatively small impact on the Noah LSM performance even for large organic matter contents. In contrast, the removal of the muting effect of vegetation on kh and the parameterization of beta(veg) greatly enhances the soil temperature profile simulations, whereas turbulent heat flux and surface temperature computations mostly benefit from the modified C-zil formulation. Further, the nighttime surface temperature overestimation is resolved from a coupled land-atmosphere perspective.
关键词	ATMOSPHERE-LAND INTERACTION SURFACE-ENERGY BALANCE TIBETAN PLATEAU ETA-MODEL TEMPERATURE PARAMETERIZATION MOISTURE CLIMATE IMPACTS WATER
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000364976900002
来源期刊	JOURNAL OF HYDROMETEOROLOGY
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/258469
推荐引用方式 GB/T 7714	Zheng, Donghai,van der Velde, Rogier,Su, Zhongbo,et al. Augmentations to the Noah Model Physics for Application to the Yellow River Source Area. Part II: Turbulent Heat Fluxes and Soil Heat Transport[J]. 中国科学院青藏高原研究所,2015,16(6).
APA	Zheng, Donghai.,van der Velde, Rogier.,Su, Zhongbo.,Wang, Xin.,Wen, Jun.,...&Chen, Yingying.(2015).Augmentations to the Noah Model Physics for Application to the Yellow River Source Area. Part II: Turbulent Heat Fluxes and Soil Heat Transport.JOURNAL OF HYDROMETEOROLOGY,16(6).
MLA	Zheng, Donghai,et al."Augmentations to the Noah Model Physics for Application to the Yellow River Source Area. Part II: Turbulent Heat Fluxes and Soil Heat Transport".JOURNAL OF HYDROMETEOROLOGY 16.6(2015).