Experimental dataset on water levels in the study of multi-layer shock flood wave over bumpy downstream

Experimental dataset of free surface water level: In this file, all water level data associated with 6 different dam break scenarios were extracted from high-quality experimental video images. The dataset are collected, classified and presented a total of 6 tables in 3 categories based on the radiuses of downstream semi-circular obstacles; 0, 4.5 and 7.5 cm. Initial upstream sediment depths were 3 and 7.5 cm and the upstream reservoir was initially occupied by 10 to 25% sedimentation (in respect to 30 cm height of the upstream reservoir). Tables 1 and 2, present the free surface water level data at 20 different locations along the flume and 15 snap times after the dam break, while initial upstream sediment depths were 3 and 7.5 cm, respectively and the radius of downstream semi-circular obstacle was 4.5 cm. Tables 3 and 4, provide the free surface water level data at all abovementioned sections and snap times while initial upstream sediment depths were 3 and 7.5 cm, respectively and the radius of downstream semi-circular obstacle was 7.5 cm. Tables 5 and 6, present the free surface water level data at all abovementioned sections and snap times while initial upstream sediment depths were 3 and 7.5 cm, respectively and there were no obstacles in the dam downstream. The unit that has been used to measure data is centimeter and the abbreviations including O_r and S_d are the radiuses of downstream semi-circular obstacles and upstream initial sediment depth, respectively. Time also refer to the time snaps after sudden removal of the gate using second as a unit of measurement. It should be noted that the vertical column on the left of the tables indicates the distances of different locations in centimeter from the beginning point of the laboratory flume. So, L column indicates all 20 distinct locations along the flume and their distances from the reservoir beginning in centimeter as a unit of measurement.

自由表面水位实验数据集：本数据集所有水位数据均取自高质量实验视频图像，涵盖6种不同溃坝场景下的相关水位信息。数据集根据下游半圆形障碍物的半径（0 cm、4.5 cm与7.5 cm）分为3大类，共计6张表格，数据均经过采集、分类与整理后呈现。上游初始泥沙深度分别为3 cm与7.5 cm，且上游水库初始淤积占比为10%~25%（以水库30 cm高度为基准）。
表1与表2展示了水槽沿程20个不同测点以及溃坝后15个时刻快照的自由表面水位数据，此时下游半圆形障碍物半径为4.5 cm，上游初始泥沙深度分别为3 cm与7.5 cm。
表3与表4提供了上述所有测点与时刻快照的自由表面水位数据，此时下游半圆形障碍物半径为7.5 cm，上游初始泥沙深度分别为3 cm与7.5 cm。
表5与表6展示了上述所有测点与时刻快照的自由表面水位数据，此时坝下游无障碍物，上游初始泥沙深度分别为3 cm与7.5 cm。
本次实验数据的计量单位为厘米，缩写O_r与S_d分别代表下游半圆形障碍物半径与上游初始泥沙深度。时间字段指以秒为单位的闸门突启后的时刻快照。需注意，表格左侧的纵向列代表各测点距离实验室水槽起始点的厘米级距离。其中L列代表水槽沿程20个不同测点，以及各测点距离水库起始端的厘米级距离。