干旱区生态环境知识资源中心(Arid): Below-Cloud Evaporation of Precipitation Isotopes over Mountains, Oases, and Deserts in Arid Areas

Arid

DOI	10.1175/JHM-D-20-0170.1
	Below-Cloud Evaporation of Precipitation Isotopes over Mountains, Oases, and Deserts in Arid Areas
	Zhu, Guofeng; Zhang, Zhuanxia; Guo, Huiwen; Zhang, Yu; Yong, Leilei; Wan, Qiaozhuo; Sun, Zhigang; Ma, Huiying
通讯作者	Zhu, GF (corresponding author)，Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou, Gansu, Peoples R China.
来源期刊	JOURNAL OF HYDROMETEOROLOGY
ISSN	1525-755X
EISSN	1525-7541
出版年	2021
卷号	22 期号:10
英文摘要	As raindrops fall from the cloud base to the ground, evaporation below those clouds affects the rain's isotope ratio, reduces precipitation in arid areas, and impacts the local climate. Therefore, in arid areas with scarce water resources and fragile ecological environments, the below-cloud evaporation is an issue of great concern. Based on 406 event-based precipitation samples collected from nine stations in the Shiyang River basin (SRB) in the northwest arid area, global meteorological water line (GMWL) and local meteorological water line (LMWL) are compared, and the Stewart model is used to study the effect of spatial and temporal variation of below-cloud evaporation on isotope values in different geomorphic units at the SRB. Furthermore, factors influencing below-cloud evaporation are analyzed. The results show that 1) the change of d-excess (Delta d) in precipitation at the SRB and the residual ratio of raindrop evaporation (f) vary in time and space. With regard to temporal variation, the intensity of below-cloud evaporation is described by summer < autumn < winter < spring. Regarding spatial variation, the below-cloud evaporation in mountain areas is weaker than in oases and deserts. The intensity of below-cloud evaporation in mountain areas increases with decreasing altitude, and the below-cloud evaporation in oasis and desert areas is affected by local climatic conditions. 2) Below-cloud evaporation is also affected by local transpiration evaporation, especially around reservoirs. Reservoirs increase the relative humidity of the air nearby, weakening below-cloud evaporation. This study deepens our understanding of the water cycle process in arid areas.
英文关键词	Atmosphere Complex terrain Rivers Evaporation Hydrometeorology Isotopic analysis
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000757151800003
WOS关键词	DEUTERIUM EXCESS ; STABLE-ISOTOPES ; MOISTURE ; OXYGEN ; HYDROGEN ; SHAPES ; BASIN ; SOUTH ; LAKES
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375897
作者单位	[Zhu, Guofeng; Zhang, Zhuanxia; Guo, Huiwen; Zhang, Yu; Yong, Leilei; Wan, Qiaozhuo; Sun, Zhigang; Ma, Huiying] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Guofeng,Zhang, Zhuanxia,Guo, Huiwen,et al. Below-Cloud Evaporation of Precipitation Isotopes over Mountains, Oases, and Deserts in Arid Areas[J],2021,22(10).
APA	Zhu, Guofeng.,Zhang, Zhuanxia.,Guo, Huiwen.,Zhang, Yu.,Yong, Leilei.,...&Ma, Huiying.(2021).Below-Cloud Evaporation of Precipitation Isotopes over Mountains, Oases, and Deserts in Arid Areas.JOURNAL OF HYDROMETEOROLOGY,22(10).
MLA	Zhu, Guofeng,et al."Below-Cloud Evaporation of Precipitation Isotopes over Mountains, Oases, and Deserts in Arid Areas".JOURNAL OF HYDROMETEOROLOGY 22.10(2021).