GeoFlood WRR Dataset and Tools

This resource contains data and tools used in the paper “GeoFlood: large-scale flood inundation mapping based on high-resolution terrain analysis” submitted to Water Resources Research.
Simple and computationally efficient flood inundation mapping methods are needed to take advantage of increasingly available high-resolution topography data. In this work, we present a new approach, called GeoFlood, for flood inundation mapping using high-resolution topographic data. This approach combines GeoNet, an advanced method for high-resolution terrain data analysis, and the Height Above Nearest Drainage. GeoFlood can rapidly convert real-time forecasted river flow conditions to corresponding flood maps. A case study in central Texas demonstrated that the flood maps generated with our approach capture the majority of the inundated extent reported by detailed FEMA flood studies. Our results show that GeoFlood is a valuable solution for rapid inundation mapping.

本资源包含了用于《GeoFlood：基于高分辨率地形分析的大规模洪水淹没制图》一文的资料与工具，该文已提交至《水资源研究》期刊。随着高分辨率地形数据的日益丰富，亟需简单且计算高效的洪水淹没制图方法。本研究提出了一种名为GeoFlood的新方法，用于利用高分辨率地形数据进行洪水淹没制图。该方法将GeoNet（一种用于高分辨率地形数据分析的高级方法）与最近排水沟高程相结合。GeoFlood能够快速将实时预测的河流流量条件转换为相应的洪水地图。在德克萨斯州中部的案例研究中，我们证明使用该方法生成的洪水地图能够捕捉到详细的美国联邦紧急事务管理署（FEMA）洪水研究中报告的大多数淹没范围。我们的结果表明，GeoFlood是快速洪水淹没制图的有价值解决方案。