干旱区生态环境知识资源中心(Arid): Revisit of event-based rainfall characteristics at Shapotou area in northern China

Arid

	Revisit of event-based rainfall characteristics at Shapotou area in northern China
	Wang Xinping; Zhang Yafeng; Hu Rui; Pan Yanxia; Xu Haojie; Shi Wei; Jin Yanxia; Yasuda Hiroshi
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2016
卷号	8 期号:6 页码:477-484
英文摘要	Distribution of rainfall event sizes and interval lengths between events are important characteristics of arid and semi-arid climates. Understanding their importance will contribute to our ability to understand ecosystem dynamics in these regions. Rainfall event timing and magnitude are important drivers of ecosystem processes and are instrumental in creating landscape heterogeneity in arid and semi-arid regions. Rainfall event characteristics were analyzed using an automatic tipping- bucket rain-gauge record across the entire summer monsoon season from 2008 to 2015 at the arid desert area of Shapotou in the Tengger Desert, China. Changing the minimum inter-event time (MIT) from 30 min to 24 h alters the number of rainfall events from 64 to 25 for the event depth larger than 0.1 mm. The mean rainfall intensity declined from 0.95 mm/h to 0.53 mm/h, and the geometric mean event duration rose from 0.55 h to 4.4 h. The number of rainfall events, mean rainfall intensity, and geometric mean event duration differed under different criteria of individual rainfall depths, except that for an individual rainfall depth of 0.5, 1.0, and 5.0 mm. The aforementioned features differed only at the lowest range of the mean rainfall intensity and depth for MIT=3 and 6 h. These findings suggest that identification of event-based rainfall in this specific arid region can be better achieved by setting the MIT at six hours. The wide variation in rainfall event properties indicate the need for paying more attention to the proper selection and reporting of event criteria in studies that adopt event-based data analysis. This is especially true in quantifying effective rainfall for soil water replenishment in terms of rainfall depth and intensity with infrequent rainfall events.
英文关键词	arid and semi-arid regions desert ecosystems rainfall event Shapotou area in northern China
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:5886545
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335737
作者单位	Wang Xinping, Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Zhang Yafeng, Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Hu Rui, Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Pan Yanxia, Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Xu Haojie, Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Shi Wei, Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzh...
推荐引用方式 GB/T 7714	Wang Xinping,Zhang Yafeng,Hu Rui,et al. Revisit of event-based rainfall characteristics at Shapotou area in northern China[J],2016,8(6):477-484.
APA	Wang Xinping.,Zhang Yafeng.,Hu Rui.,Pan Yanxia.,Xu Haojie.,...&Yasuda Hiroshi.(2016).Revisit of event-based rainfall characteristics at Shapotou area in northern China.Sciences in Cold and Arid Regions,8(6),477-484.
MLA	Wang Xinping,et al."Revisit of event-based rainfall characteristics at Shapotou area in northern China".Sciences in Cold and Arid Regions 8.6(2016):477-484.