Data in "Hydrodynamic processes of incipient meander chute cutoffs: laboratory experiments with implications for morphodynamics and depth-averaged modeling"

File descriptions: flumegeom.m:Coordinate system defined for the cutoff flume and plots of its bankline and centerline. advcoor.mat:Coordinates of all ADV measurement locations with respect to the coordinate system of the cutoff flume (flumegeom.m). It contains a [7,2,25] matrix. 7 in the first dimension is the number of points in each cross-section, including 5 ADV measurement points and the left and right banks, from the left bank to the right bank. 2 in the second dimension corresponds to the x- and y-coordinates, respectively. 25 in the third dimension is the number of cross-sections, from 1 to 33 followed by A to D. Mean_HD.mat & Mean_LD.mat:Mean (time-averaged) flow data as 5 matrices for the High-Depth (HD) and Low-Depth (LD) experimental run. Each matrix is of dimension [8,5,25]. 8 and 5 are the number of points in the vertical and transverse directions, respectively, with the first row corresponding to the water surface and the first column corresponding to the left bank. 25 is the number of cross-sections in the order of 1-33 followed by A-D. bdmean is the elevation above the bed at each cross-section; ypos is the distance from the left bank at each cross-section. umean, vmean, and wmean are the mean flow components in the streamwise, transverse, and vertical direction, respectively. All units are in the metric system. Turb_HD.mat & Turb_LD.mat:Turbulence data as 7 matrices for the High-Depth (HD) and Low-Depth (LD) experimental run. Each matrix is of dimension [8,5,25]. 8 and 5 are the number of points in the vertical and transverse directions, respectively, with the first row corresponding to the water surface and the first column corresponding to the left bank. 25 is the number of cross-sections in the order of 1-33 followed by A-D. urms, vrms, and wrms, are the root-mean-square values of the velocity in streamwise, transverse, and vertical direction, respectively. TKE is turbulence kinetic energy, defined as 0.5*(urms^2+vrms^2+wrms^2). Ruv, Ruw, and Rvw are the covariance of (u,v), (u,w), and (v,w), respectively, where u, v, and w are the velocity in the streamwise, transverse, and vertical direction, respectively. Elevation.xlsx:Elevation data of the flume bed and water surface of both experimental runs. See detailed description in the "metadata" tab in the file. The following are data in .csv format, output from the .mat files. Mean_Cartesian_HD.csv & Mean_Cartesian_LD.csv:Mean flow data in Cartesian coordinate. Column 1: x coordinate; column 2: y coordinates; column 3: z coordinates; column 4: x velocity; column 5: y velocity; column 6: z velocity. Mean_intrinsic_HD.csv & Mean_intrinsic_LD.csv: Mean flow data in the intrinsic coordinate. Column 1: s coordinate; column 2: n coordinates; column 3: z coordinates; column 4: streamwise velocity; column 5: transverse velocity; column 6: vertical velocity. Turb_intrinsic_HD.csv & Turb_intrinsic_LD.csv: Turbulence data in the intrinsic coordinate. Column 1: urms; column 2: vrms; column 3: wrms; column 4: TKE; column 5: Ruv; column 6: Ruw; column 7: Rvw. See the variable definitions above.文件说明： flumegeom.m：为裁弯水槽定义坐标系，并绘制其岸线与中心线。 advcoor.mat：包含所有声学多普勒流速仪（Acoustic Doppler Velocimeter，ADV）测点相对于裁弯水槽坐标系（即flumegeom.m定义的坐标系）的坐标数据。该文件包含一个维度为[7,2,25]的矩阵：第一维度的7代表每个断面的测点数量，包含5个ADV测点以及左、右两岸，测点顺序从左岸至右岸；第二维度的2分别对应x、y坐标；第三维度的25代表断面总数，断面编号依次为1至33，随后为A至D。 Mean_HD.mat 与 Mean_LD.mat：分别对应高水深（High-Depth, HD）与低水深（Low-Depth, LD）实验组的时均流场数据，共包含5个矩阵，每个矩阵的维度为[8,5,25]。其中，第一维度的8代表垂向上的测点数量，第二维度的5代表横向上的测点数量，第一行对应水面位置，第一列对应左岸；第三维度的25代表断面总数，断面编号顺序与前述一致（1至33，随后为A至D）。矩阵包含以下变量：bdmean为各断面床面高程；ypos为各断面内距左岸的距离；umean、vmean、wmean分别为沿水流方向、横向与垂向的时均流速分量。所有数据均采用公制单位。 Turb_HD.mat 与 Turb_LD.mat：分别对应高水深与低水深实验组的湍流数据，共包含7个矩阵，每个矩阵维度为[8,5,25]，其维度定义与前述时均流场数据一致。矩阵包含以下变量：urms、vrms、wrms分别为沿水流方向、横向与垂向流速的均方根值；TKE为湍流动能，定义为0.5*(urms²+vrms²+wrms²)；Ruv、Ruw、Rvw分别为(u,v)、(u,w)与(v,w)的协方差，其中u、v、w分别为沿水流方向、横向与垂向的流速分量。 Elevation.xlsx：包含两组实验组的水槽床面与水面高程数据，详细说明请参见文件内"metadata"标签页。 以下为从.mat文件导出的.csv格式数据： Mean_Cartesian_HD.csv 与 Mean_Cartesian_LD.csv：笛卡尔坐标系下的时均流场数据。各列依次为：第1列x坐标，第2列y坐标，第3列z坐标，第4列x方向流速，第5列y方向流速，第6列z方向流速。 Mean_intrinsic_HD.csv 与 Mean_intrinsic_LD.csv：固有坐标系（intrinsic coordinate）下的时均流场数据。各列依次为：第1列s坐标，第2列n坐标，第3列z坐标，第4列沿水流方向流速，第5列横向流速，第6列垂向流速。 Turb_intrinsic_HD.csv 与 Turb_intrinsic_LD.csv：固有坐标系下的湍流数据。各列依次为：第1列urms，第2列vrms，第3列wrms，第4列TKE，第5列Ruv，第6列Ruw，第7列Rvw。变量定义参见前文说明。