GSTDTAP  > 资源环境科学
DOI10.1002/2017WR021445
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
ISSN0043-1397
EISSN1944-7973
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
被引频次:187[WOS]   [WOS记录]     [WOS相关记录]
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).
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