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<p>Sustained periods of anomalously warm river water temperature, known as riverine heatwaves, can negatively impact river ecosystems and socioeconomic activities. With climate change, these heatwaves are likely to become more severe and frequent. Even though the main drivers of water temperature are well understood, we only have a limited understanding of how the different hydro-climatic processes that drive riverine heatwaves interact. This lack of knowledge is particularly striking given that anticipated increases in the frequency and severity of riverine heatwaves may progressively increase the vulnerability of ecological and anthropogenic systems. To better understand how riverine heatwaves may evolve in a changing climate, we propose focused research efforts to develop large-sample datasets, enhance our understanding of the processes involved in riverine heatwave development, and improve water temperature models. Such efforts require a strong community and will support mitigation and adaptation measures in relation to these increasingly frequent extreme events.</p>

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Riverine heatwaves are an emergent climate change risk

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • Amber van Hamel,
  • Giulia Bruno,
  • Corentin Chartier-Rescan,
  • Corinna Frank,
  • Maria H. Grundmann,
  • David M. Hannah,
  • Cornelia W. Twining,
  • Manuela I. Brunner

摘要

Sustained periods of anomalously warm river water temperature, known as riverine heatwaves, can negatively impact river ecosystems and socioeconomic activities. With climate change, these heatwaves are likely to become more severe and frequent. Even though the main drivers of water temperature are well understood, we only have a limited understanding of how the different hydro-climatic processes that drive riverine heatwaves interact. This lack of knowledge is particularly striking given that anticipated increases in the frequency and severity of riverine heatwaves may progressively increase the vulnerability of ecological and anthropogenic systems. To better understand how riverine heatwaves may evolve in a changing climate, we propose focused research efforts to develop large-sample datasets, enhance our understanding of the processes involved in riverine heatwave development, and improve water temperature models. Such efforts require a strong community and will support mitigation and adaptation measures in relation to these increasingly frequent extreme events.