While previous research often finds flood impacts outside of conventional flood risk zones such as FEMA’s 100-year floodplain maps, we have less of a sense of the social and demographic composition of the areas outside of floodplains that experience these impacts, even though social inequalities in flood risk and impacts more broadly is well-documented in the United States. Using data on 100-year floodplains, flood impacts, socio-demographic characteristics, and residential parcels, this study focuses on race as a primary marker of socio-spatial inequality to examine flooding inside and outside of floodplains during Hurricane Harvey in Greater Houston. Descriptive findings show that a large majority of flooding occurred outside of 100-year floodplains. Regression models show that while there is limited evidence of racial inequalities in flood risk as conceptualized as location in 100-year floodplains, there are substantial racial inequalities in flood extent during Hurricane Har...

中文翻译：

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哈维飓风期间洪泛区内外洪灾的社会不平等

尽管先前的研究经常发现常规洪灾风险区以外的洪水影响，例如FEMA的100年洪泛区地图，但尽管洪灾造成了社会不平等，但我们对洪灾区以外遭受这些影响的地区的社会和人口构成却缺乏了解在美国，洪水风险和影响的范围更广。本研究使用有关100年洪泛区，洪灾影响，社会人口统计学特征和居民区的数据，将种族作为社会空间不平等的主要标志，以研究大休斯顿飓风哈维期间洪泛区内外的洪灾。描述性发现表明，绝大多数洪水发生在100年洪泛区之外。