Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR020178 |
A new drought index that considers the joint effects of climate and land surface change | |
Liu, Meixian1,2; Xu, Xianli1,2; Xu, Chaohao1,2; Sun, Alexander Y.3; Wang, Kelin1,2; Scanlon, Bridget R.3; Zhang, Lu4 | |
2017-04-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Australia |
英文摘要 | This study proposes a hydrological drought index, the standardized wetness index (SWI), by combining the structure of the Standardized Precipitation-Evapotranspiration Index and actual-evaporation-based residual water-energy ratio, in which actual evaporation is estimated using the Budyko hypothesis. The SWI requires three parameters-precipitation, potential evaporation, and parameter n of a Budyko-type formula. Based on different types of n (fixed or dynamic), SWI can be used to estimate the dryness/wetness resulting from climate change (variability) solely, and from the joint effects of climate and land surface change (variability). Performance of SWI is evaluated using historical droughts and by comparing to the self-calibrated Palmer Drought Severity Index. Results show that SWI effectively captures global droughts. Furthermore, a case study in two catchments with significant land surface modification indicates that the joint effects of climate and land surface have greater impacts on dryness/wetness in the water-limited Wuding catchment than in the energy-limited Poyang catchment. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403682600041 |
WOS关键词 | WATER ; EVAPOTRANSPIRATION ; SOIL ; VARIABILITY ; BALANCE ; IMPACT ; EVAPORATION ; STREAMFLOW ; CATCHMENT ; RUNOFF |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
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/21913 |
专题 | 资源环境科学 |
作者单位 | 1.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Hunan, Peoples R China; 2.Chinese Acad Sci, Huanjiang Observat & Res Stn Karst Ecosyst, Huanjiang, Peoples R China; 3.Univ Texas Austin, Bur Econ Geol, Jackson Sch Geosci, Austin, TX USA; 4.CSIRO Land & Water, Water Hlth Country Flagship, Canberra, ACT, Australia |
推荐引用方式 GB/T 7714 | Liu, Meixian,Xu, Xianli,Xu, Chaohao,et al. A new drought index that considers the joint effects of climate and land surface change[J]. WATER RESOURCES RESEARCH,2017,53(4). |
APA | Liu, Meixian.,Xu, Xianli.,Xu, Chaohao.,Sun, Alexander Y..,Wang, Kelin.,...&Zhang, Lu.(2017).A new drought index that considers the joint effects of climate and land surface change.WATER RESOURCES RESEARCH,53(4). |
MLA | Liu, Meixian,et al."A new drought index that considers the joint effects of climate and land surface change".WATER RESOURCES RESEARCH 53.4(2017). |
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