Experimental dataset for riparian vegetation-sediment interactions

These data constitute the results from two experimental flume runs performed at the Korea Institute of Civil Engineering and Building Technology- River Experiment Center in Andong, South Korea. This dataset consists of pre and post experimental photos and one Excel file with different tabs reporting data for the channel bed elevations, vegetation characteristics, hydraulics at three cross sections, and bedload transport measurements at three cross sections. Full experimental details can be found in the Tranmer et al. (In Submission) article published here: A.W. Tranmer, U. Ji, M. Ahn, S. Jung, E. Yager, (In Submission). Flow hydraulics, sediment supply, and bed morphodynamics as controls on erosion and deposition in and around riparian vegetation patches. Water Resources Research. Channel bed elevations were collected with a Reigl LMS-Z390i laser scanner with 6 mm vertical uncertainty. Laser scans were performed before and after each experiment to monitor initial and final bed conditions as well as computing DEMs of difference for each experimental run. These data are reported for each section and zone in and around the vegetation patch. The vegetation patch consists of 89 three-year-old willows (Salix subfragilis) and characteristics are summarized in the associated tab in the spreadsheet. Hydraulic data were produced by near-bed ADV measurements across the channel. Three cross sections were measured located 4 m upstream of the vegetation patch (D0), through the midsection of the patch (D2), and 2 m downstream of the patch (D4). At cross sections D0 and D4 a Nortek Vectrino ADV (25 Hz, 60 s) measured the velocity at 0.25 relative flow depth from the bed (z/h). At cross section D2 through the centerline of the patch, a Sontek microADV (50 Hz, 120 s) measured velocity at 0.2 z/h. These depths were selected as they were the closest to the bed that consistently did not experience interference from mobile bedforms. Bedload measurements were performed at three cross sections located 4 m upstream of the vegetation patch (D0), across the upstream head of the vegetation patch (D1), and across the downstream boundary of the vegetation patch (D3). Bedload measurements used a custom bedload sampler with a 21.6 cm2 orifice and the sampler was on the bed for 2-4 min at each sampling location depending on the discharge.本数据集收录了韩国安东市韩国土木工程与建筑技术研究所-河流实验中心进行的两项实验性水槽实验的结果。该数据集包括实验前后照片以及一个Excel文件，其中包含不同标签页，用于报告河道床高、植被特征、三个横断面的水力学数据以及三个横断面的床沙运输测量数据。详细的实验信息可在Tranmer等（待发表）文章中查阅，该文章已在此发表： A.W. Tranmer, U. Ji, M. Ahn, S. Jung, E. Yager, (待发表). 流水水力学、泥沙供应及河床形态动力作为侵蚀和沉积在河岸植被斑块及其周围的控制因素。水资源研究。 河道床高数据采用Reigl LMS-Z390i激光扫描仪进行收集，该仪器垂直方向的不确定度为6毫米。在每个实验前后均进行激光扫描，以监控初始和最终的床面条件，并计算每个实验运行的DEM差异图。这些数据针对植被斑块及其周围的每个段落和区域进行报告。 植被斑块由89株三年生的柳树（Salix subfragilis）组成，其特征在电子表格的相关标签页中进行了总结。 水力学数据通过横断面的近床ADV测量获得。在植被斑块上游4米处（D0）、通过植被斑块的中部（D2）以及植被斑块下游2米处（D4）进行了三个横断面的测量。在D0和D4横断面，使用Nortek Vectrino ADV（25 Hz，60秒）测量了从床面起0.25相对流深的流速（z/h）。在D2横断面通过植被斑块中心线，使用Sontek微ADV（50 Hz，120秒）测量了0.2 z/h的流速。这些深度被选中，因为它们距离床面最近，且不会受到移动床形的干扰。 床沙测量在位于植被斑块上游4米处（D0）、植被斑块上游头部（D1）以及植被斑块下游边界（D3）的三个横断面进行。床沙测量使用了一个带有21.6 cm²孔径的自定义床沙采样器，采样器在每个采样位置停留2-4分钟，具体时间取决于流量。