Abstract. In the Ganges-Brahmaputra-Meghna delta, covering most of Bangladesh, more than 165 million people live in low-lying coasts facing major extreme climatic events, such as cyclones. This article reviews the current scientific literature publications (2007–2020) in order to define vulnerability in the context of coastal Bangladesh facing cyclonic flooding. Based on this review, a new metric, called socio-spatial vulnerability index (SSVI), is defined as function of both the probability of the cyclonic flood hazard and the sensitivity of delta inhabitants. The main result shows that the districts of Shariatpur, Chandpur and Barisal situated in the tidal floodplain of the Ganges-Brahmaputra-Meghna delta, are in the fourth quartile, i.e. highest category. These districts are very densely populated (from 870 up to 1400 inhabitants/km²) and exposed to inundation hazards, and host a large number of vulnerability factors. Finally, the delta's mouth was identified as a very vulnerable area to cyclonic flooding.

中文翻译：

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孟加拉国易受沿海飓风袭击

摘要。在覆盖孟加拉国大部分地区的恒河-布拉马普特拉-梅格纳河三角洲，超过1.65亿人生活在低洼沿海地区，面临着重大的极端气候事件，例如气旋。本文回顾了当前的科学文献出版物（2007–2020年），以定义孟加拉国沿海地区遭受旋风洪水的脆弱性。基于此审查，一个新的指标称为社会空间脆弱性指数（SSVI）被定义为气旋洪水危险的可能性和三角洲居民敏感性的函数。主要结果表明，位于恒河-布拉马普特拉-梅格纳河三角洲潮汐平原上的沙里亚特普尔，昌德普尔和巴里萨尔地区属于第四类，即最高类。这些地区人口非常稠密（从870到1400居民/ km ²），并遭受洪水泛滥的危害，并承载着许多脆弱性因素。最终，三角洲的口被确定为极易遭受气旋洪水的地区。