干旱区生态环境知识资源中心(Arid): Effect of sub-cloud evaporation on the delta~(18)O of precipitation in Qilian Mountains and Hexi Corridor, China

Arid

	Effect of sub-cloud evaporation on the delta~(18)O of precipitation in Qilian Mountains and Hexi Corridor, China
	Li Zongxing; Feng Qi; Wang Yamin; Li Jianguo; Guo Xiaoyan; Li Yongge
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2016
卷号	8 期号:5 页码:378-387
英文摘要	The sub-cloud evaporation effect refers to the evaporation process for raindrops that fall from the cloud base to the ground, which is usually accompanied by depleted light isotopes and enriched heavy isotopes in the precipitation. Based on 461 event-based precipitation samples collected from 12 weather stations in the Qilian Mountains and the Hexi Corridor from May to August of 2013, our results indicated that sub-cloud evaporation has a great influence on the delta~(18)O of precipitation, especially in small-amount precipitation events. In May, June, July, and August the delta~(18)O composition was enriched by 35%, 26%, 39%, and 41%, respectively, from the cloud base to the ground. This influence clearly strengthened with temperature rise, from the Qilian Mountains to the Hexi Corridor. When falling raindrops are evaporated by 1.0% in the Qilian Mountains and the Hexi Corridor, the composition of delta~(18)O would be enriched by 1.2% and 2.6%, respectively. Temperature dominated the sub-cloud evaporation in the Qilian Mountains, whereas relative humidity controlled it in the Hexi Corridor. These results provide new proofs of the evolutional process of stable isotopes in precipitation in arid regions.
英文关键词	sub-cloud evaporation precipitation stable isotope Qilian Mountains
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5828442
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335709
作者单位	Li Zongxing, Gansu Hydrology and Water Resources Engineering Research Center, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Ecohydrology of Inland River Basins, Chinese Academy of Sciences, Lanzhou, Gansu China.; Feng Qi, Gansu Hydrology and Water Resources Engineering Research Center, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Ecohydrology of Inland River Basins, Chinese Academy of Sciences, Lanzhou, Gansu China.; Li Jianguo, Gansu Hydrology and Water Resources Engineering Research Center, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Ecohydrology of Inland River Basins, Chinese Academy of Sciences, Lanzhou, Gansu China.; Guo Xiaoyan, Gansu Hydrology and Water Resources Engineering Research Center, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Ecohydrology of Inland River Basins, Chine...
推荐引用方式 GB/T 7714	Li Zongxing,Feng Qi,Wang Yamin,et al. Effect of sub-cloud evaporation on the delta~(18)O of precipitation in Qilian Mountains and Hexi Corridor, China[J],2016,8(5):378-387.
APA	Li Zongxing,Feng Qi,Wang Yamin,Li Jianguo,Guo Xiaoyan,&Li Yongge.(2016).Effect of sub-cloud evaporation on the delta~(18)O of precipitation in Qilian Mountains and Hexi Corridor, China.Sciences in Cold and Arid Regions,8(5),378-387.
MLA	Li Zongxing,et al."Effect of sub-cloud evaporation on the delta~(18)O of precipitation in Qilian Mountains and Hexi Corridor, China".Sciences in Cold and Arid Regions 8.5(2016):378-387.