Supporting Information for the publication: The influence of slipface angle on dune growth

Dune characteristics as calculated with the bedform tracking tool. Data contains dune characteristics (dune height, length and slipface angles) during dune growth from an initial flatbed in a laboratory flume.<br><br>Explanation of variables in columns from left to right:<br>1: Time relative to dune equilibrium time ((T/Te) in (s/s))<br>2: Dune height relative to equilibrium dune heigth ((H/He) in (m/m)) <br>3: Dune length relative to equilibrium dune length (L/Le in (m/m))<br>4: Dune steepness (height over length) ((H/L) in (m/m)).<br>5: Dune slipface angles (in degrees).<br>Experiments were conducted in a tilting flume with recirculation facilities for both water and sediment in the Kraijenhoff van de Leur laboratory for Water and Sediment dynamics, Wageningen University &amp; Research.<br>The flume measures 1.20 m x 0.50 m x 14.4 m internally (width x height x length). A 15 cm thick layer of uniformly distributed, light-weight polystyrene particles was installed at the flume bed with a density of p_s=1055 kg m^(-3). <br>Dune slipface angles are the steepest part of a dune leeside. Dune slipface angles are calculated with the bedform tracking tool using MATLAB. <br>

本数据集为通过床形追踪工具（bedform tracking tool）计算得到的沙丘（dune）特征数据，记录了实验室水槽内初始平坦床面上沙丘发育全过程中的各项沙丘参数，包括沙丘高度、长度与落坡角度（slipface angles）。

各列变量的含义从左至右依次为：
1. 相对于沙丘平衡时间的时刻（T/Te，单位：s/s）
2. 相对于平衡沙丘高度的沙丘高度（H/He，单位：m/m）
3. 相对于平衡沙丘长度的沙丘长度（L/Le，单位：m/m）
4. 沙丘陡度（高度与长度的比值，H/L，单位：m/m）
5. 沙丘落坡角度（单位：度）

本实验于瓦赫宁根大学及研究中心（Wageningen University & Research）的Kraijenhoff van de Leur水沙动力学实验室开展，所用水槽配备水与泥沙的循环系统且可调节倾角。
该水槽内部尺寸为1.20 m × 0.50 m × 14.4 m（宽×高×长），床面铺设了一层厚度为15 cm的均匀分布轻质聚苯乙烯颗粒，颗粒密度为ρ_s=1055 kg·m^(-3)。
沙丘落坡角度指沙丘背风侧的最陡坡面，本数据集的该参数通过MATLAB编写的床形追踪工具计算得到。