Temporal and Spatial Variability of Droughts in Southwest China from 1961 to 2012
Huang Y. H.; Xu, C.; Yang, H. J.; Wang, J. H.; Jiang, D.; Zhao, C. P.
Source PublicationSustainability
2015
Volume7
Issue10
Pages13597-13609
Keyworddroughts Southwest China precipitation anomaly index drought frequency standardized precipitation index patterns station
AbstractSouthwest China (SC) has suffered a series of super extreme droughts in the last decade. This study analyzed the temporal and spatial variations of drought in SC from 1961 to 2012. Based on precipitation anomaly index (PAI) that was derived from 1 km gridded precipitation data, three time scales (month, year and decade) for the drought frequency (DF) and drought area were applied to estimate the spatio-temporal structure of droughts. A time-series analysis showed that winter droughts and spring droughts occurred frequently for almost half of the year from November to March. Summer droughts occasionally occurred in severe drought decades: the 1960s, 1980s and 2000s. During the period of observation, the percent of drought area in SC increased from the 1960s (<5%) to the 2000s (>25%). A total of 57% of the area was affected by drought in 2011, when the area experienced its most severe drought both in terms of area and severity. The spatial analysis, which benefitted from the gridded data, detailed that all of SC is at drought risk except for the central Sichuan Basin. The area at high risk for severe and extreme droughts was localized in the mountains of the junction of Sichuan and Yunnan. The temporal and spatial variability can be prerequisites for drought resistance planning and drought risk management of SC.
Indexed BySCI
Language英语
ISSN2071-1050
DOI10.3390/su71013597
Citation statistics
Document TypeSCI/SSCI论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/38662
Collection资源利用与环境修复重点实验室_资源地理与国土资源研究室_SCI/SSCI期刊论文
中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Huang Y. H.,Xu, C.,Yang, H. J.,et al. Temporal and Spatial Variability of Droughts in Southwest China from 1961 to 2012. 2015.
Files in This Item: Download All
File Name/Size DocType Version Access License
Huang-2015-Temporal (7994KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Huang Y. H.]'s Articles
[Xu, C.]'s Articles
[Yang, H. J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Huang Y. H.]'s Articles
[Xu, C.]'s Articles
[Yang, H. J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Huang Y. H.]'s Articles
[Xu, C.]'s Articles
[Yang, H. J.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Huang-2015-Temporal and Spatial.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.