Flood hazard potential reveals global floodplain settlement patterns.
Flood hazard potential reveals global floodplain settlement patterns.
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潜在的洪水灾害揭示了全球洪泛区的定居模式。
DOI：
10.1038/s41467-023-38297-9
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发表时间：
2023-05-16
影响因子：
16.6
通讯作者：
Wagener, Thorsten
中科院分区：
文献类型：
--
作者：
Devitt, Laura;Neal, Jeffrey;Coxon, Gemma;Savage, James;Wagener, Thorsten
洪水是最常见的自然灾害之一，在世界范围内造成灾难性的影响。对全球人地系统进行压力测试，以了解洪泛区和人口暴露于一系列合理条件的敏感性，是确定未来洪水或暴露变化可能最关键的一项战略。本研究对全球120万条河流的淹没区和人口对不同洪水事件量级的敏感性进行了全球分析。在这里，我们表明，地形和排水面积与洪水的敏感性，以及与社会行为。我们发现明确的定居模式，其中洪泛区最敏感的频繁，低震级的事件，揭示了均匀分布的风险跨越危险区，这表明人们已经适应了这种风险。相比之下，对极端震级事件最敏感的洪泛区往往人口最密集地居住在这些很少被洪水淹没的地区，由于气候变化，潜在的危险程度可能会增加。本研究对全球120万条河流的淹没区和人口对不同洪水事件量级的敏感性进行了全球分析。作者表明，地形和流域面积与洪水的敏感性以及社会行为。
Flooding is one of the most common natural hazards, causing disastrous impacts worldwide. Stress-testing the global human-Earth system to understand the sensitivity of floodplains and population exposure to a range of plausible conditions is one strategy to identify where future changes to flooding or exposure might be most critical. This study presents a global analysis of the sensitivity of inundated areas and population exposure to varying flood event magnitudes globally for 1.2 million river reaches. Here we show that topography and drainage areas correlate with flood sensitivities as well as with societal behaviour. We find clear settlement patterns in which floodplains most sensitive to frequent, low magnitude events, reveal evenly distributed exposure across hazard zones, suggesting that people have adapted to this risk. In contrast, floodplains most sensitive to extreme magnitude events have a tendency for populations to be most densely settled in these rarely flooded zones, being in significant danger from potentially increasing hazard magnitudes given climate change. This study presents a global analysis of the sensitivity of inundated areas and population exposure to varying flood event magnitudes globally for 1.2 million river reaches. The authors show that topography and drainage areas correlate with flood sensitivities as well as with societal behavior.
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影响因子：
4.7
作者：
Dottori, Francesco;Salamon, Peter;Feyen, Luc
通讯作者：
Feyen, Luc
影响因子：
5.4
作者：
Coxon G;Freer J;Westerberg IK;Wagener T;Woods R;Smith PJ
通讯作者：
Smith PJ
影响因子：
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作者：
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通讯作者：
Di Baldassarre, G.
影响因子：
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作者：
Di Baldassarre, G.;Viglione, A.;Bloeschl, G.
通讯作者：
Bloeschl, G.
影响因子：
8.2
作者：
Alfieri, Lorenzo;Bisselink, Berny;Feyen, Luc
通讯作者：
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