Modelled flood extents for Kampala, Uganda

Data comprise modelled flood extents for the Kampala district produced by simulating rainfall events over a 5m Digital Elevation Model (DEM) using a 2D finite-volume hydrodynamic model. The DEM was obtained from Makerere University and rainfall events were sampled across a range of depths and durations (for 20, 40, 60, 80 and 100 mm of rainfall over 1, 3 and 6 hours using flood depth thresholds of 0.1, 0.2 and 0.3 mm). The effects of infiltration were included within green areas based on spatial data obtained from Makerere University. Maximum depths were converted into extents using various thresholds. Full details about this dataset can be found at https://doi.org/10.5285/e53dea2e-cb25-4f0f-b5f9-937eecf15aff本数据集包含坎帕拉区（Kampala district）的模拟洪水淹没范围，该成果通过基于5米分辨率数字高程模型（Digital Elevation Model，DEM）的二维有限体积水动力模型模拟降雨事件生成。该数字高程数据取自马凯雷雷大学（Makerere University），降雨事件的选取覆盖了多组雨量与历时组合：针对1、3、6小时的降雨时长，分别设置20、40、60、80、100毫米的降雨量情景，并采用0.1、0.2、0.3毫米作为洪水深度阈值。基于从马凯雷雷大学获取的空间数据，绿地区域的入渗效应已被纳入模型计算。研究人员通过多组阈值将最大淹没深度转换为洪水淹没范围。有关本数据集的完整详情可查阅：https://doi.org/10.5285/e53dea2e-cb25-4f0f-b5f9-937eecf15aff