Abstract. This paper provides a state-of-art account on flood vulnerability indices, highlighting worldwide trends and future research directions. A total of 95 peer-reviewed articles published between 2002–2019 were systematically analyzed. An exponential rise in research effort is demonstrated, with 80 % of the articles being published since 2015. The majority of these studies (62.1 %) focused on the neighborhood followed by the city scale (14.7 %). Min-max normalization (30.5 %), equal weighting (24.2 %), and linear aggregation (80.0 %) were the most common methods. With regard to the indicators used, a focus was given to socio-economic aspects (e.g. population density, illiteracy rate, gender), whilst components associated with the citizen's coping and adaptive capacity were slightly covered. Gaps in current research include a lack of sensitivity and uncertainty analyzes (present in only 9.5 % and 3.2 % of papers, respectively); inadequate or inexistent validation of the results (present in 13.7 % of the studies); lack of transparency regarding the rationale for weighting and indicator selection; and use of static approaches, disregarding temporal dynamics. We discuss the challenges associated with these findings for the assessment of flood vulnerability and provide a research agenda for attending to these gaps.

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评论文章：洪水脆弱性指数的系统回顾和未来前景

摘要。本文提供了有关洪水脆弱性指数的最新信息，重点介绍了全球趋势和未来的研究方向。系统分析了2002-2019年间发表的95篇经同行评审的文章。事实证明，研究工作呈指数级增长，自2015年以来发表了80％的文章。这些研究中的大多数（62.1％）专注于社区，其次是城市规模（14.7％）。最小-最大归一化（30.5％），相等权重（24.2％）和线性聚合（80.0％）是最常见的方法。关于所使用的指标，重点放在社会经济方面（例如人口密度，文盲率，性别），而与公民的应对和适应能力有关的组成部分则略有涵盖。当前研究的空白包括缺乏敏感性和不确定性分析（分别仅占论文的9.5％和3.2％）；结果验证不充分或不存在（占研究的13.7％）；权重和指标选择的理由缺乏透明度；和使用静态方法，而忽略时间动态。我们讨论了与这些发现有关的洪水脆弱性评估所面临的挑战，并提供了应对这些差距的研究议程。