Validate model data

This dataset consists of experimental data used to validate the morphodynamic model. The data correspond to the representative test cases adopted in this study, including sediment layer evolution and two-dimensional dam-break flow in a suddenly expanding channel. They include measurements of water depth and bed elevation at different spatial locations and time instances, which are used for quantitative comparison with numerical simulation results. All data are organized in a uniform format. The units of all variables are consistent, with spatial coordinates given in meters (m) and time recorded in seconds (s) or minutes (min). In addition, the experimental data are obtained from previously published studies.本数据集包含用于验证地貌动力模型（morphodynamic model）的实验数据，对应本研究采用的典型试验工况，涵盖沉积物层演化与突扩渠道内二维溃坝水流两类场景。数据包含不同空间位置与时刻下的水深及床面高程实测值，用于与数值模拟结果开展定量对比分析。所有数据均采用统一格式进行组织，所有变量的单位保持一致：空间坐标以米（m）为单位，时间单位为秒（s）或分钟（min）。此外，本数据集的实验数据均源自已发表的相关研究成果。