Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR021445 |
Understanding the Role of Climate Characteristics in Drought Propagation | |
Apurv, Tushar1; Sivapalan, Murugesu1,2; Cai, Ximing1 | |
2017-11-01 | |
发表期刊 | WATER RESOURCES RESEARCH
![]() |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | In this study, we use numerical experiments with a simple water balance model to understand the roles of key climate characteristics in hydrologic drought propagation and the consequence of human responses to drought events under different climates. The experiments use climate inputs from a range of places with a hypothetical catchment of fixed properties to study drought propagation under different climates. Three drought propagation mechanisms are identified that produce hydrologic droughts with differing characteristics. The first mechanism involves seasonal groundwater recharge cycles, which persist during low rainfall periods, resulting in shorter hydrologic droughts compared to meteorological droughts. The second is characterized by seasonal groundwater recharge cycles that are suppressed during low rainfall periods, resulting in longer hydrologic droughts than meteorological droughts. The third is exemplified by a lack of seasonality in groundwater recharge and a strong control of precipitation over groundwater recharge, resulting in hydrologic droughts of similar duration as meteorological droughts. The roles of seasonality, climate aridity, and timing of precipitation in producing these different drought propagation mechanisms are studied. The timing of precipitation is found to have the most significant impact. Furthermore, modeling experiments are performed to understand the role of climate in the interaction between short and long time-scale human activities in response to droughts and the effect of the common practice of groundwater pumping during drought events on long-term groundwater depletion. Interestingly, climates with high interannual variability of precipitation are found to be associated with less groundwater depletion than the climates with low interannual variability. |
英文关键词 | drought propagation groundwater depletion socio-hydrology climate controls seasonality model diagnostics |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418736700036 |
WOS关键词 | STANDARDIZED PRECIPITATION INDEX ; CATCHMENT CHARACTERISTICS ; MULTIYEAR DROUGHT ; UNITED-STATES ; GROUNDWATER ; WATER ; COEVOLUTION ; PERSPECTIVE ; PATTERNS ; SCALES |
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/20091 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA; 2.Univ Illinois, Dept Geog & Geog Informat Sci, Urbana, IL USA |
推荐引用方式 GB/T 7714 | Apurv, Tushar,Sivapalan, Murugesu,Cai, Ximing. Understanding the Role of Climate Characteristics in Drought Propagation[J]. WATER RESOURCES RESEARCH,2017,53(11). |
APA | Apurv, Tushar,Sivapalan, Murugesu,&Cai, Ximing.(2017).Understanding the Role of Climate Characteristics in Drought Propagation.WATER RESOURCES RESEARCH,53(11). |
MLA | Apurv, Tushar,et al."Understanding the Role of Climate Characteristics in Drought Propagation".WATER RESOURCES RESEARCH 53.11(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论