Model Data for Dynamic Controls on the Asymmetry of Mouth Bars: Role of Alongshore Currents

The Model dataset is exported and integrated from Delft3D numerical results by using the Quickplot module, which is used in the manuscript entitled "Dynamic Controls on the Asymmetry of Mouth Bars: Role of Alongshore Currents". Each folder is organized based on the unique RunID assigned to the Delft3D simulations, as detailed in the main text of the manuscript. Given the employment of multiple decomposition domains within the model, the numerical results are exported individually for each domain. To facilitate the analysis of "bulk" data, encompassing three dimensions (two in horizontal space and one in time), all single domains are intergrated by Matlab script into three comprehensive data files. The data files with the ".mat" extension can be directly opened and loaded in MATLAB. The prefixes of the MAT-files are as follows: The "bedlevel_daily_*.mat" files contain daily map data of the bed level (ZZ) spanning 74 simulation days (73 time steps in total). This data is used to calculate metrics for assessing mouth bar asymmetry. The "map_u_c_h_day5_*.mat" files represent map data (recorded every 15 minutes, 97 time steps in total) including depth-averaged velocity (u), suspended sediment concentration (c), water depth (h), bed level (bl), and sediment flux (qs) after t=5 hydrodynamic days. This data is used to analyze sediment plume and currents during the period of the initial formation of mouth bars, providing predictive insights. The "map_h_u_qs_afterday74_*.mat" files contain hourly map data comprising bed level (h), water depth (d), depth-averaged velocity (U for instantaneous and v for tidally-averaged), and suspended sediment flux (QS for instantaneous and q for tidally-averaged) within a tidal cycle of 12-hr semidiurnal tide (13 time steps). This data is utilized to visualize and extract distributary channels after 10 morphological years of evolution. The Matlab code for extracting channels follows the GRL paper (Gao et al., 2018) and JGR-ES paper (Gao et al., 2019).

本数据集通过Quickplot模块从Delft3D数值模拟结果导出并整合，对应题为《河口沙坝不对称性的动力控制：沿岸流的作用》的研究手稿。每个文件夹均基于为Delft3D模拟分配的唯一RunID进行组织，详情见该手稿的正文部分。由于模型中采用了多个分解计算域，因此针对每个计算域单独导出数值结果。为便于分析涵盖三维数据（二维水平空间与一维时间）的整体数据集，我们通过Matlab脚本将所有单域结果整合为三份综合数据文件。扩展名为".mat"的数据文件可直接在MATLAB中打开并加载。各MAT文件的命名前缀如下：1. "bedlevel_daily_*.mat"：包含床面高程（ZZ）的每日地图数据，涵盖74个模拟日（共73个时间步长），该数据用于计算评估河口沙坝不对称性的相关指标。2. "map_u_c_h_day5_*.mat"：代表t=5个水动力日后的地图数据（每15分钟记录一次，共97个时间步长），包含垂向平均流速（u）、悬浮泥沙浓度（c）、水深（h）、床面高程（bl）以及泥沙输运通量（qs）。该数据用于分析河口沙坝初始形成阶段的泥沙羽流与流场，提供预测性研究见解。3. "map_h_u_qs_afterday74_*.mat"：包含逐小时地图数据，涵盖12小时半日潮周期内（共13个时间步长）的床面高程（h）、水深（d）、垂向平均流速（瞬时值为U，潮平均值为v）以及悬浮泥沙输运通量（瞬时值为QS，潮平均值为q）。该数据用于在经过10个地貌演化年后可视化并提取分流河道。用于提取河道的Matlab代码参考了GRL论文（Gao等，2018）与JGR-ES论文（Gao等，2019）。