Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6164 |
Space-time variability of drought over Vietnam | |
Le, Phong V. V.1; Tan Phan-Van1; Mai, Khiem V.2; Tran, Duc Q.1 | |
2019-11-30 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:14页码:5437-5451 |
文章类型 | Article |
语种 | 英语 |
国家 | Vietnam |
英文摘要 | Drought may have severe societal, economic, and environmental consequences. However, the space-time characteristics of drought over Vietnam remain poorly understood. In this study, we investigate the spatio-temporal variability of drought using the Palmer Drought Severity Index (PDSI) over mainland Vietnam for the 1980-2014 period. Through data analysis at 131 stations, we identified the main characteristics, historical trends, and dominant variability of drought across seven climatic sub-regions in Vietnam. The results show regional patterns of drought duration, inter-arrival time, frequency, and severity, but no consistent trend of drought variation during the study period. Based on the supply and demand concepts of water balance, PDSI captures well the large frequency and severity of drought in some sub-regions that are related to soil moisture deficit associated with high temperature and low rainfall during summer. Moreover, drought over Vietnam was predominantly controlled by climate seasonality. The linkages between drought in Vietnam and large-scale drivers are quite different among areas, suggesting a possibility of early prediction for drought at some sub-regions using ENSO. |
英文关键词 | drought ENSO variability Vietnam |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000492898900015 |
WOS关键词 | ASIAN SUMMER MONSOON ; SEVERITY INDEX ; PATTERNS ; MOISTURE ; WATER |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225480 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.VNU Univ Sci, Fac Hydrometeorol & Oceanog, 334 Nguyen Trai, Hanoi, Vietnam; 2.Vietnam Inst Meteorol Hydrol & Climate Change, Hanoi, Vietnam |
推荐引用方式 GB/T 7714 | Le, Phong V. V.,Tan Phan-Van,Mai, Khiem V.,et al. Space-time variability of drought over Vietnam[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(14):5437-5451. |
APA | Le, Phong V. V.,Tan Phan-Van,Mai, Khiem V.,&Tran, Duc Q..(2019).Space-time variability of drought over Vietnam.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(14),5437-5451. |
MLA | Le, Phong V. V.,et al."Space-time variability of drought over Vietnam".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.14(2019):5437-5451. |
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