干旱区生态环境知识资源中心(Arid): Formation and variations of dew and hoarfrost in the Hulu Catchment on Northeast Qinghai-Tibet Plateau, China

Arid

DOI	10.1016/j.ejrh.2022.101179
	Formation and variations of dew and hoarfrost in the Hulu Catchment on Northeast Qinghai-Tibet Plateau, China
	Li, Hongyuan; Han, Chuntan; Yang, Yong; Chen, Rensheng
通讯作者	Han, CT ; Chen, RS
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2022
卷号	42
英文摘要	Study region: The Hulu Catchment on Northeast Qinghai-Tibet Plateau, China Study focus: Dew and hoarfrost (DH) are prominent components of the Non-Precipitation Water Inputs in arid and semi-arid regions, but research into them is mostly neglected in alpine regions. To understand the formation and variations of DH, as well as whether DH has a significant impact on the water balance and ecosystem, a field measurement experiment of dew was conducted in the Hulu Catchment. Meanwhile, the amount, duration, and frequency of DH at different elevations in the Hulu Catchment from 2016 to 2020 were estimated using the Penman equation. New hydrological insights for the region: DH was common weather phenomenon in the Hulu Catchment, with small interannual and large monthly variations in amount, duration, and frequency. DH showed significant seasonal pattern and elevation dependence, which depending on the seasonal pattern and elevation dependence of meteorological factors. The mean annual amount of DH ranged from 3 mm to 33 mm, contributing 0.3-7.3% of precipitation, indicating that DH was not a critical component of water balance. Nevertheless, DH was ecologically important in replenishing surface soil water deficits and mitigating diurnal fluctuations in surface temperature, protecting vegetation and microorganisms from water and temperature stress in alpine regions. This study has important implications for understanding the energy transfer, water cycle and ecosystem operation in alpine regions.
英文关键词	Dew Hoarfrost Alpine region Penman equation Seasonal pattern Elevation dependence
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000831819100001
WOS关键词	NON-RAINFALL-WATER ; ATMOSPHERIC SURFACE-LAYER ; BULK RICHARDSON-NUMBER ; NEGEV DESERT ; URBAN DEW ; VAPOR ADSORPTION ; QILIAN MOUNTAINS ; METEOROLOGICAL FACTORS ; ENERGY-BALANCE ; BOUNDARY-LAYER
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393527
推荐引用方式 GB/T 7714	Li, Hongyuan,Han, Chuntan,Yang, Yong,et al. Formation and variations of dew and hoarfrost in the Hulu Catchment on Northeast Qinghai-Tibet Plateau, China[J],2022,42.
APA	Li, Hongyuan,Han, Chuntan,Yang, Yong,&Chen, Rensheng.(2022).Formation and variations of dew and hoarfrost in the Hulu Catchment on Northeast Qinghai-Tibet Plateau, China.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,42.
MLA	Li, Hongyuan,et al."Formation and variations of dew and hoarfrost in the Hulu Catchment on Northeast Qinghai-Tibet Plateau, China".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 42(2022).