Climate change projections indicate an increase in intense rainfall events with consequent river flooding, which could lead to devastating natural disasters with serious consequences for the quality of life of populations. The main objective of this work was to determine and analyze the flooding potential of watersheds by integrating morphometric attributes and the HAND (Height Above Nearest Drainage) model. The study focused on the Bocaina Stream Basin (BSB), located in the State of Minas Gerais in southeastern Brazil. The BSB fully covers the urban area of the city of Passos, which has long suffered from flooding. In this work, the following cartographic products were generated at a scale of 1:50,000: a map of the morphometric susceptibility to flooding, which classifies the subbasins of the BSB based on five morphometric parameters; a map of the height above the nearest drainage, which was obtained via the HAND model; and map of the topographic predisposition to flooding, which was obtained through the integration of the morphometric flood susceptibility information and the HAND model information. Based on the map of the topographic predisposition to flooding, the BSB area shows the following classes of flood susceptibility: 75%—very low, 11%—low, 9%—medium, and 6%—high. Although the high and medium classes represent the lowest percentages in terms of basin area, they are predominantly located in areas near the drainage channels. When these areas are occupied, as is the case in the city of Passos, flooding can have considerable impacts.

中文翻译：

---

形态学属性和HAND模型的集成，用于识别洪泛区

气候变化预测表明，强降雨事件增加，随之而来的河道洪水泛滥，可能导致毁灭性自然灾害，给人口生活质量带来严重后果。这项工作的主要目的是通过整合形态计量属性和HAND（最近排水高度）模型来确定和分析流域的洪泛潜力。这项研究的重点是位于巴西东南部米纳斯吉拉斯州的Bocaina流域（BSB）。BSB完全覆盖了长期遭受洪水困扰的Passos市区。在这项工作中，以1：50,000的比例生成了以下制图产品：洪水泛滥的形态易感性图，它根据五个形态计量学参数对BSB的子盆地进行了分类；通过HAND模型获得的最近排水上方的高度图；并结合形态计量洪水敏感性信息和HAND模型信息获得了地形易患洪水的地图。根据洪水的地形易感性图，BSB地区显示出以下几类洪水易感性：75％（极低），11％（低），9％（中）和6％（高）。尽管就流域面积而言，高中类别所占百分比最低，但它们主要位于排水渠附近。当这些区域被占领时（如帕索斯市一样），洪水会产生相当大的影响。它是通过结合形态计量洪水敏感性信息和HAND模型信息获得的。根据洪水的地形易感性图，BSB地区显示出以下几类洪水易感性：75％（极低），11％（低），9％（中）和6％（高）。尽管就流域面积而言，高中类别所占百分比最低，但它们主要位于排水渠附近。当这些区域被占领时（如帕索斯市一样），洪水可能会产生重大影响。它是通过结合形态洪水敏感性信息和HAND模型信息获得的。根据洪灾的地形易感性图，BSB地区显示出以下几类洪灾敏感性：75％（极低），11％（低），9％（中）和6％（高）。尽管就流域面积而言，高中类别所占百分比最低，但它们主要位于排水渠附近。当这些区域被占领时（如帕索斯市一样），洪水可能会产生重大影响。和6％-高。尽管就流域面积而言，高中类别所占百分比最低，但它们主要位于排水渠附近。当这些区域被占领时（如帕索斯市一样），洪水可能会产生重大影响。和6％-高。尽管就流域面积而言，高中类别所占百分比最低，但它们主要位于排水渠附近。当这些区域被占领时（如帕索斯市一样），洪水可能会产生重大影响。