Coastal flooding will disproportionately impact people on river deltas.

Coastal flooding will disproportionately impact people on river deltas.
复制标题

DOI:
10.1038/s41467-020-18531-4
复制
发表时间:
2020-09-29
影响因子:
16.6
通讯作者:
Siani SMO
Siani SMO
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Edmonds DA;Caldwell RL;Brondizio ES;Siani SMO

文献摘要

参考文献

被引文献

相似文献

气候变化正在加剧热带气旋,加速海平面上升,并增加沿海洪水。河流三角洲特别容易受到洪水的影响,因为它们海拔低,城市人口密集。然而,我们不知道有多少人生活在三角洲上,也不知道他们面临着洪水的威胁。使用新的全球数据集,我们发现2017年有3.39亿人生活在河流三角洲,其中89%的人生活在与大多数热带气旋活动相同的纬度地区。我们计算出,全球41%(3100万)遭受热带气旋洪水的人口生活在三角洲,92%(2800万)生活在发展中国家或最不发达经济体。此外,80%(2500万)的人生活在缺乏沉积物的三角洲上,无法通过沉积物沉积自然减轻洪水。鉴于沿海洪水只会恶化,我们必须重新定义这个问题,认为它将对河流三角洲的人们造成不成比例的影响,特别是在发展中国家和最不发达经济体。沿海河流三角洲地区特别受到气候变化的影响,尽管这些地区人口稠密,但缺乏可靠的人口估计。在这里,作者使用全球数据集来预测最受洪水和极端天气威胁的人数和地区。
Climate change is intensifying tropical cyclones, accelerating sea-level rise, and increasing coastal flooding. River deltas are especially vulnerable to flooding because of their low elevations and densely populated cities. Yet, we do not know how many people live on deltas and their exposure to flooding. Using a new global dataset, we show that 339 million people lived on river deltas in 2017 and 89% of those people live in the same latitudinal zone as most tropical cyclone activity. We calculate that 41% (31 million) of the global population exposed to tropical cyclone flooding live on deltas, with 92% (28 million) in developing or least developed economies. Furthermore, 80% (25 million) live on sediment-starved deltas, which cannot naturally mitigate flooding through sediment deposition. Given that coastal flooding will only worsen, we must reframe this problem as one that will disproportionately impact people on river deltas, particularly in developing and least-developed economies. Coastal river delta regions are particularly impacted by the effects of climate change, yet though these regions are densely inhabited, robust estimates of population are lacking. Here the authors use global datasets to predict the number of people and regions most threatened by flooding and extreme weather.
DOI: 10.1029/2010jf001955
发表时间: 2011-11-16
影响因子: 3.9
作者:
Edmonds, Douglas A.;Paola, Chris;Sheets, Ben A.
通讯作者: Sheets, Ben A.
DOI: 10.1007/s11625-016-0368-2
发表时间: 2016-07-01
影响因子: 6
作者:
Brondizio, Eduardo S.;Vogt, Nathan D.;Hetrick, Scott
通讯作者: Hetrick, Scott
DOI: 10.1002/grl.50758
发表时间: 2013-08-16
影响因子: 5.2
作者:
Higgins, Stephanie;Overeem, Irina;Syvitski, James P. M.
通讯作者: Syvitski, James P. M.
DOI: 10.1002/2016ef000430
发表时间: 2017-04-01
期刊: EARTHS FUTURE
影响因子: 8.2
作者:
Muis, Sanne;Verlaan, Martin;Ward, Philip J.
通讯作者: Ward, Philip J.
DOI: 10.5194/nhess-20-489-2020
发表时间: 2020-02-21
影响因子: 4.6
作者:
Couasnon, Anais;Eilander, Dirk;Ward, Philip J.
通讯作者: Ward, Philip J.