干旱区生态环境知识资源中心(Arid): Spatiotemporal variability of rain-on-snow events in the arid region of Northwest China

Arid

DOI	10.1007/s40333-024-0074-3
	Spatiotemporal variability of rain-on-snow events in the arid region of Northwest China
	Yang, Zhiwei; Chen, Rensheng; Liu, Zhangwen; Zhao, Yanni; Liu, Yiwen; Wu, Wentong
通讯作者	Chen, RS
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2024
卷号	16 期号:4 页码:483-499
英文摘要	Rain-on-snow (ROS) events involve rainfall on snow surfaces, and the occurrence of ROS events can exacerbate water scarcity and ecosystem vulnerability in the arid region of Northwest China (ARNC). In this study, using daily snow depth data and daily meteorological data from 68 meteorological stations provided by the China Meteorological Administration National Meteorological Information Centre, we investigated the spatiotemporal variability of ROS events in the ARNC from 1978 to 2015 and examined the factors affecting these events and possible changes of future ROS events in the ARNC. The results showed that ROS events in the ARNC mainly occurred from October to May of the following year and were largely distributed in the Qilian Mountains, Tianshan Mountains, Ili River Valley, Tacheng Prefecture, and Altay Prefecture, with the Ili River Valley, Tacheng City, and Altay Mountains exhibiting the most occurrences. Based on the intensity of ROS events, the areas with the highest risk of flooding resulting from ROS events in the ARNC were the Tianshan Mountains, Ili River Valley, Tacheng City, and Altay Mountains. The number and intensity of ROS events in the ARNC largely increased from 1978 to 2015, mainly influenced by air temperature and the number of rainfall days. However, due to the snowpack abundance in areas experiencing frequent ROS events in the ARNC, snowpack changes exerted slight impact on ROS events, which is a temporary phenomenon. Furthermore, elevation imposed lesser impact on ROS events in the ARNC than other factors. In the ARNC, the start time of rainfall and the end time of snowpack gradually advanced from the spring of the current year to the winter of the previous year, while the end time of rainfall and the start time of snowpack gradually delayed from autumn to winter. This may lead to more ROS events in winter in the future. These results could provide a sound basis for managing water resources and mitigating related disasters caused by ROS events in the ARNC.
英文关键词	rain-on-snow events snowpack snowmelt climate change Spearman's rank correlation arid region of Northwest China
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001227188300002
WOS关键词	PRECIPITATION ; CLIMATE ; DISCRIMINATION ; TEMPERATURE ; IMPACTS ; COVER ; FLOW
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404370
推荐引用方式 GB/T 7714	Yang, Zhiwei,Chen, Rensheng,Liu, Zhangwen,et al. Spatiotemporal variability of rain-on-snow events in the arid region of Northwest China[J],2024,16(4):483-499.
APA	Yang, Zhiwei,Chen, Rensheng,Liu, Zhangwen,Zhao, Yanni,Liu, Yiwen,&Wu, Wentong.(2024).Spatiotemporal variability of rain-on-snow events in the arid region of Northwest China.JOURNAL OF ARID LAND,16(4),483-499.
MLA	Yang, Zhiwei,et al."Spatiotemporal variability of rain-on-snow events in the arid region of Northwest China".JOURNAL OF ARID LAND 16.4(2024):483-499.