Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073871 |
A multiscalar Palmer drought severity index | |
Liu, Yi1,2; Zhu, Ye3; Ren, Liliang1; Singh, Vijay P.4; Yang, Xiaoli1; Yuan, Fei1 | |
2017-07-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The limitation of the fixed time scale in the Palmer drought severity index (PDSI) family has long been criticized in drought literatures. By modifying the algorithm of duration factors estimation of the self-calibrating PDSI (SC-PDSI), this paper proposed a new approach that could extend the time scale in a wide range. The properties of these newly derived SC-PDSI variants (denoted as SC-PDSIx) at short, medium, and long time scales, respectively, were evaluated through comparisons with the multiscalar standardized precipitation evapotranspiration index (SPEI) over 134 meteorological sites in China. Results show that new SC-PDSIx generally inherits the advantages of original SC-PDSI with a rather stable behavior in aspects of drought frequency and other statistical characteristics. Besides, the spatiotemporal pattern of the 2011 drought reflected by matched SC-PDSIx and SPEI is very similar, indicating that the multiscalar SC-PDSI could be a useful alternative to monitor droughts at different time scales. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000406257400045 |
WOS关键词 | STANDARDIZED PRECIPITATION INDEX ; HYDROLOGICAL DROUGHT ; SENSITIVITY ; SCALES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/29155 |
专题 | 气候变化 |
作者单位 | 1.Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing, Jiangsu, Peoples R China; 2.Hohai Univ, Sch Earth Sci & Engn, Nanjing, Jiangsu, Peoples R China; 3.Nanjing Univ Informat Sci & Technol, Coll Hydrometeorol, Nanjing, Jiangsu, Peoples R China; 4.Texas A&M Univ, Dept Biol & Agr Engn, College Stn, TX USA |
推荐引用方式 GB/T 7714 | Liu, Yi,Zhu, Ye,Ren, Liliang,et al. A multiscalar Palmer drought severity index[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(13). |
APA | Liu, Yi,Zhu, Ye,Ren, Liliang,Singh, Vijay P.,Yang, Xiaoli,&Yuan, Fei.(2017).A multiscalar Palmer drought severity index.GEOPHYSICAL RESEARCH LETTERS,44(13). |
MLA | Liu, Yi,et al."A multiscalar Palmer drought severity index".GEOPHYSICAL RESEARCH LETTERS 44.13(2017). |
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