This study synthesizes the current understanding of the hydrological, impact, and adaptation processes underlying drought‐to‐flood events (i.e., consecutive drought and flood events), and how they interact. Based on an analysis of literature and a global assessment of historic cases, we show how drought can affect flood risk and assess under which circumstances drought‐to‐flood interactions can lead to increased or decreased risk. We make a distinction between hydrological, socio‐economic and adaptation processes. Hydrological processes include storage and runoff processes, which both seem to mostly play a role when the drought is a multiyear event and when the flood occurs during the drought. However, which process is dominant when and where, and how this is influenced by human intervention needs further research. Processes related to socio‐economic impacts have been studied less than hydrological processes, but in general, changes in vulnerability seem to play an important role in increasing or decreasing drought‐to‐flood impacts. Additionally, there is evidence of increased water quality problems due to drought‐to‐flood events, when compared to drought or flood events by themselves. Adaptation affects both hydrological (e.g., through groundwater extraction) or socio‐economic (e.g., influencing vulnerability) processes. There are many examples of adaptation, but there is limited evidence of when and where certain processes occur and why. Overall, research on drought‐to‐flood events is scarce. To increase our understanding of drought‐to‐flood events we need more comprehensive studies on the underlying hydrological, socio‐economic, and adaptation processes and their interactions, as well as the circumstances that lead to the dominance of certain processes.This article is categorized under: Science of Water > Hydrological Processes Science of Water > Water Extremes

中文翻译：

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探索干旱与洪水的相互作用和动态：全球案例回顾

这项研究综合了目前对旱涝事件（即连续干旱和洪水事件）的水文、影响和适应过程以及它们如何相互作用的理解。基于文献分析和对历史案例的全球评估，我们展示了干旱如何影响洪水风险，并评估在哪些情况下旱涝相互作用会导致风险增加或减少。我们对水文、社会经济和适应过程进行了区分。水文过程包括蓄水过程和径流过程，当干旱是多年事件以及干旱期间发生洪水时，这两种过程似乎都发挥着重要作用。然而，哪个过程在何时何地占主导地位，以及人类干预如何影响这一过程，还需要进一步研究。与社会经济影响相关的过程的研究少于水文过程，但总的来说，脆弱性的变化似乎在增加或减少干旱到洪水影响方面发挥着重要作用。此外，有证据表明，与干旱或洪水事件本身相比，干旱到洪水事件导致的水质问题有所增加。适应影响水文（例如，通过地下水开采）或社会经济（例如，影响脆弱性）过程。适应的例子有很多，但关于某些过程发生的时间和地点以及原因的证据有限。总体而言，关于旱涝事件的研究很少。为了增加我们对旱涝事件的理解，我们需要对潜在的水文、社会经济和适应过程及其相互作用，以及导致某些过程占主导地位的环境进行更全面的研究。本文分类在下面： 水科学 > 水文过程 水科学 > 水极端情况