HEC-RAS 2D Dam Breach Dataset – Tanahu Hydropower Project (Worst-Case Scenario)

This dataset contains all necessary input files to run a worst-case dam breach simulation for the Tanahu Storage Hydropower Project using HEC-RAS 2D. It includes geometry files, inflow hydrographs, terrain data, land cover-based Manning’s n assignments, and mapping outputs (flood depth, velocity, arrival time). The breach scenario simulates an overtopping failure under a 10,000-year return period flood. This data is intended for flood risk analysis, dam safety planning, hazard mapping, and academic research. The dataset is compressed in a single <code>.zip</code> file for ease of use.

该数据集包含使用HEC-RAS 2D对塔纳胡蓄水水电项目（Tanahu Storage Hydropower Project）进行最恶劣工况溃坝模拟所需的全部输入文件。它涵盖几何文件、入流过程线、地形数据、基于土地覆盖的曼宁糙率系数（Manning’s n）赋值文件，以及映射输出结果（洪水深度、流速、到达时间）。溃坝情景模拟了10000年一遇洪水下的漫顶破坏。该数据适用于洪水风险分析、大坝安全规划、灾害制图及学术研究。为便于使用，数据集被压缩为单个<code>.zip</code>文件。