干旱区生态环境知识资源中心(Arid): Observed surface heat fluxes partitioning during the local growing season over the Tibetan Plateau

Arid

DOI	10.1016/j.agrformet.2024.110186
	Observed surface heat fluxes partitioning during the local growing season over the Tibetan Plateau
	Deng, Mingshan; Meng, Xianhong; Sheng, Danrui; Niu, Hanlin; Wu, Peili; Li, Zhaoguo; Zhao, Lin; Chen, Hao; Shang, Lunyu; Wang, Shaoying; Lyu, Shihua
通讯作者	Meng, XH ; Li, ZG
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2024
卷号	356
英文摘要	Turbulent heat fluxes across the surface are an important mechanism of land-atmosphere coupling. But there is still a lack of sufficient observational measurements, particularly over the climate sensitive Tibetan Plateau (TP). This paper examines the partitioning between sensible and latent heat fluxes during growing season using the Bowen ratio as a diagnostic based on eddy covariance measurements from 12 observational sites located on the TP with the altitudes ranging between 3327 m and 4509 m above sea level. The results show an average Bowen ratio of 1.13, indicating that sensible heat flux is only slightly dominant in surface energy balance. For different climate zones, Bowen ratio varies from 0.56 to 1.05 in the semi-arid zone, 0.53 and 0.57 in the subhumid region, and 2.73 to 3.11 in the arid zone. The Bowen ratio shows sensitivity to soil dry and wet condition, with higher values during drier soil conditions. In the arid to semi-arid regions, the Bowen ratio shows a clear positive correlation with the Drought Soil Index (DSI) and a negative correlation with the Normalized Difference Vegetation Index (NDVI), suggesting sensitivity to soil moisture conditions. In the sub-humid climate zone, vapor pressure deficit (VPD) is the dominant factor influencing the Bowen ratio. In the wet and dry transition zone, soil moisture, VPD, NDVI and land-air temperature difference all have a role to play.
英文关键词	Eddy covariance measurements Bowen ratio Soil moisture Vapor pressure deficit Tibetan Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001294301300001
WOS关键词	ENERGY-BALANCE CLOSURE ; ATMOSPHERE-LAND INTERACTION ; SOIL-MOISTURE ; EVAPOTRANSPIRATION ; PRECIPITATION ; CLIMATE ; MODEL
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402640
推荐引用方式 GB/T 7714	Deng, Mingshan,Meng, Xianhong,Sheng, Danrui,et al. Observed surface heat fluxes partitioning during the local growing season over the Tibetan Plateau[J],2024,356.
APA	Deng, Mingshan.,Meng, Xianhong.,Sheng, Danrui.,Niu, Hanlin.,Wu, Peili.,...&Lyu, Shihua.(2024).Observed surface heat fluxes partitioning during the local growing season over the Tibetan Plateau.AGRICULTURAL AND FOREST METEOROLOGY,356.
MLA	Deng, Mingshan,et al."Observed surface heat fluxes partitioning during the local growing season over the Tibetan Plateau".AGRICULTURAL AND FOREST METEOROLOGY 356(2024).