Causes, impacts and patterns of disastrous river floods

Nature Reviews Earth & Environment, Год журнала: 2021, Номер 2(9), С. 592 - 609

Опубликована: Авг. 10, 2021

Язык: Английский

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Evidence of shorter more extreme rainfalls and increased flood variability under climate change

Journal of Hydrology, Год журнала: 2021, Номер 603, С. 126994 - 126994

Опубликована: Сен. 27, 2021

Язык: Английский

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Nonstationary weather and water extremes: a review of methods for their detection, attribution, and management

Hydrology and earth system sciences, Год журнала: 2021, Номер 25(7), С. 3897 - 3935

Опубликована: Июль 7, 2021

Abstract. Hydroclimatic extremes such as intense rainfall, floods, droughts, heatwaves, and wind or storms have devastating effects each year. One of the key challenges for society is understanding how these are evolving likely to unfold beyond their historical distributions under influence multiple drivers changes in climate, land cover, other human factors. Methods analysing hydroclimatic advanced considerably recent decades. Here we provide a review drivers, metrics, methods detection, attribution, management, projection nonstationary extremes. We discuss issues uncertainty associated with approaches (e.g. arising from insufficient record length, spurious nonstationarities, incomplete representation sources modelling frameworks), examine empirical simulation-based frameworks analysis extremes, identify gaps future research.

Язык: Английский

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Global Increases in Compound Flood‐Hot Extreme Hazards Under Climate Warming

Geophysical Research Letters, Год журнала: 2022, Номер 49(8)

Опубликована: Апрель 18, 2022

Under global warming, a novel category of extreme events has become increasingly apparent, where flood and hot extremes occur in rapid succession, causing significant damages to infrastructure ecosystems. However, these bivariate compound flood-hot (CFH) hazards have not been comprehensively examined at the scale, their evolution under climate warming remains unstudied. Here, we present first picture projected changes CFH by using cascade modeling chain CMIP6 models, satellite reanalysis data sets, bias correction, hydrological models. We find an increasing percentage floods will be accompanied change; joint return periods CFHs are decrease globally, particularly tropics. These decreasing largely driven indicate likely increase hazards, ultimately highlight urgent need conduct adaptation planning for future risks.

Язык: Английский

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Flood hazard potential reveals global floodplain settlement patterns

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Май 16, 2023

Flooding is one of the most common natural hazards, causing disastrous impacts worldwide. Stress-testing global human-Earth system to understand sensitivity floodplains and population exposure a range plausible conditions strategy identify where future changes flooding or might be critical. This study presents analysis inundated areas varying flood event magnitudes globally for 1.2 million river reaches. Here we show that topography drainage correlate with sensitivities as well societal behaviour. We find clear settlement patterns in which sensitive frequent, low magnitude events, reveal evenly distributed across hazard zones, suggesting people have adapted this risk. In contrast, extreme events tendency populations densely settled these rarely flooded being significant danger from potentially increasing given climate change.

Язык: Английский

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Urbanizing the floodplain: global changes of imperviousness in flood-prone areas

Environmental Research Letters, Год журнала: 2022, Номер 17(10), С. 104024 - 104024

Опубликована: Сен. 13, 2022

Abstract Cities have historically developed close to rivers and coasts, increasing human exposure flooding. That is exacerbated by changes in climate population, urban encroachment on floodplains. Although the mechanisms of how urbanization affects flooding are relatively well understood, there been limited efforts assess magnitude floodplain globally it has changed both space time. Highly resolved global datasets flood hazard area from 1985 2015 now available, enabling reconstruction history at high spatial resolutions. Here we show that urbanized floodplains an average probability 1/100 years, almost doubled since 1985. Further, rate expansion into these increased a factor 1.5 after year 2000. We also find rates were highest most hazardous areas floodplains, with population growth suggesting accompanying increase density. These results reveal scope, trajectory extent encroachment. With tangible implications for risk management, data could be directly used integrated models adaptation pathways

Язык: Английский

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Modeling, challenges, and strategies for understanding impacts of climate extremes (droughts and floods) on water quality in Asia: A review

Environmental Research, Год журнала: 2023, Номер 225, С. 115617 - 115617

Опубликована: Март 4, 2023

The increasing frequency and intensity of extreme climate events are among the most expected recognized consequences change. Prediction water quality parameters becomes more challenging with these extremes since is strongly related to hydro-meteorological conditions particularly sensitive evidence linking influence factors on provides insights into future climatic extremes. Despite recent breakthroughs in modeling evaluations change's impact quality, informed methodologies remain restricted. This review aims summarize causal mechanisms across considering Asian methods associated extremes, such as floods droughts. In this review, we (1) identify current scientific approaches prediction context flood drought assessment, (2) discuss challenges impediments, (3) propose potential solutions improve understanding mitigate their negative impacts. study emphasizes that one crucial step toward enhancing our aquatic ecosystems by comprehending connections between through collective efforts. indices indicators were demonstrated better understand link for a selected watershed basin.

Язык: Английский

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Climate Change and Hydrological Extremes

Current Climate Change Reports, Год журнала: 2024, Номер 11(1)

Опубликована: Окт. 2, 2024

Язык: Английский

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Hydroclimate volatility on a warming Earth

Nature Reviews Earth & Environment, Год журнала: 2025, Номер 6(1), С. 35 - 50

Опубликована: Янв. 9, 2025

Язык: Английский

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Green infrastructure: The future of urban flood risk management?

Wiley Interdisciplinary Reviews Water, Год журнала: 2021, Номер 8(6)

Опубликована: Сен. 27, 2021

Abstract Urban flooding is a key global challenge which expected to become exacerbated under change due more intense rainfall and flashier runoff regimes over increasingly urban landscapes. Consequently, many cities are rethinking their approach flood risk management by using green infrastructure (GI) solutions reverse the legacy of hard engineering approaches. The aim GI attenuate, restore, recreate natural response, bringing hydrological responses closer pre‐urbanized conditions. However, effectiveness often difficult determine, depends on both magnitude storm events spatial scale infrastructure. Monitoring successes failures schemes not routinely conducted. Thus, it can be determine whether provides sustainable solution manage flooding. This article an international perspective current use for mitigation offers in light future challenges. An increasing body literature further suggests that optimized alongside gray provide holistic delivers multiple co‐benefits environment society, while resilience. will have work synergistically with existing upgraded if managed futureproof manner. Here, we discuss series priorities challenges must overcome enable integration into stormwater frameworks effectively risk. categorized under: Engineering Water > Sustainable Planning Science Extremes

Язык: Английский

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