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Extreme Drought around 900ka in Southwestern Iberia: Insights from IODP Pollen Records
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Extreme drought deactivates ABA biosynthesis
2022The phytohormone abscisic acid (ABA) is synthesized by plants during drought to close stomata and regulate desiccation tolerance pathways. In conifers and a few angiosperms with embolism resistant xylem a peaking-type (p-type) response in ABA levels has been observed, in which ABA levels increase early in drought then decrease as drought progresses ...
Joel A. Mercado-Reyes, Scott McAdam
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A joint extreme index for compound droughts and hot extremes
Theoretical and Applied Climatology, 2020The past decades have witnessed a surge in the study of compound droughts and hot extremes, which are among the most stressful weather and climate extremes with disastrous impacts. A suitable tool for tracking properties of compound droughts and hot extremes taking into account their dependence is desirable.
Zengchao Hao +5 more
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Recurrent Mild Drought Events Increase Resistance Toward Extreme Drought Stress
Ecosystems, 2014The frequency and magnitude of extreme weather events such as drought are expected to increase in the future. At present, plant responses to recurrent extreme events have been sparsely examined and the role of stress history on subsequent stress response has been widely neglected.
Sabrina Backhaus +5 more
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Divergent forest sensitivity to repeated extreme droughts
Nature Climate Change, 2020Climate change-driven increases in drought frequency and severity could compromise forest ecosystems and the terrestrial carbon sink1–3. While the impacts of single droughts on forests have been widely studied4–6, understanding whether forests acclimate to or become more vulnerable to sequential droughts remains largely unknown and is crucial for ...
William R. L. Anderegg +4 more
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A stochastic analysis of extreme droughts
Water Resources Research, 1975A stochastic analysis is performed on the extreme drought duration defined to be the maximum dry interval for a point rainfall process. The assumptions underlying previous analyses are generalized to those of a nonhomogeneous Poisson process. Analytical results, which seem intractable in general, are derived for two particular forms of the intensity ...
Vijay K. Gupta, Lucien Duckstein
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On the Extreme Streamflow Drought Analysis
Water Resources Management, 2002A procedure, based on the distribution of the largest streamflowdrought deficit and on the composite hydrograph recession curve, is proposed for the derivation of the n-year streamflow drought,for the cases for which the assumption of identical deficit and duration frequencies is not valid, for a given river at a given location.The present article is a
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Groundwater Resilience under Extreme Drought 
Abstract:Government guidance suggests that, by 2050, water companies should be resilient to a 1-in-500-year drought, allowing them to maintain supply in all except the most extreme droughts. However, drought is poorly defined with no universally accepted definition.Eleyna McGrady +3 more
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Application of Extreme Value Analysis to Extreme Drought Disaster Area in China
2011Recently, the natural balance and harmony of human society has been broken by the frequent occurrence of extreme drought. Extreme value theory is a statistical analysis tool of extreme events on the risk management which provides a good support of theoretical and methodological application.
Lingyan Xu, Huimin Wang, Junfei Chen
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