User input files for River Dart image velocimetry analysis

River Dart ground control points (GCPs) :
Ground control point data used in the orthorectification of imagery acquired by the fixed camera. X Y Z [m] are the physical locations of GCPs in local grid. X Y [px] are the corresponding locations of the GCPs in image pixel coordinates.

River Dart cross-section :
Cross-section data to be loaded into KLT-IV for processing of River Dart videos. x- and y- and z-coordinates are in local grid above an arbitrary datum. The z-elevations are referenced to the same datum as the water level elevations presented in the FileList datasets.
Environment Agency flow gauging data :
Flow gauging data acquired by the Environment Agency between 1980 and 2018 for the determination of river flow discharge on the River Dart at Austins Bridge (UK).

River Dart calibration videos file list :
Dates of water surface measurements made during the same time period as videos were acquired during the calibration period. Also present are river level measurements. These water level elevations are referenced to the same datum as the z-elevations presented in the GCP and cross-section datasets.

River Dart calibration videos :
Compressed folder (7Zip) containing videos used to assess river surface velocities during the calibration time period. Videos are named using the following approach: devon_dartyyyymmdd_HHMM0.mp4 where the values in bold represent the date and time of the video acquisition. The format of the videos is mp4 and were acquired at a frame rate of 19.99Hz for a duration of 10-seconds.

River Dart validation videos file list :
Dates of water surface measurements made during the same time period as videos were acquired during the validation period. Also present are river level measurements. These water level elevations are referenced to the same datum as the z-elevations presented in the GCP and cross-section datasets.

River Dart validation videos :
Compressed folder (7Zip) containing videos used to assess river surface velocities during the validation time period. Videos are named using the following approach: devon_dartyyyymmdd_HHMM0.mp4 where the values in bold represent the date and time of the video acquisition. The format of the videos is mp4 and were acquired at a frame rate of 19.99Hz for a duration of 10-seconds.
Q Reports
Compressed folder (.zip) containing the outputs of analysis undertaken by KLT-IV. Within this folder are 'Discharge Report' files in html format which summarise the results of the image velocimetry analysis for each video analysed.
Summary outputs 1 :
These are the summary outputs produced following analysis of KLT-IV on the videos acquired during the calibration and validation periods. This data has been extracted from the Q Report html files that are exported from KLT-IV during the analysis.
Summary outputs 2 :
These are the summary outputs generated by KLT-IV directly. The difference between Summary Output 1 and Summary Output 2 is that in the former case the discharge data is presented with the time that the video was acquired, whereas in the latter the discharge data is presented with the time that the corresponding river level measurement was acquired. There can be a discrepancy between the two of up to 10-minutes.
aDcp Transects
An excel file containing aDcp transect data for eight different flow magnitudes.

Data relating to this deposit is located on the following records: Surface alpha coefficients following analysis of aDcp transects https://doi.org/10.25405/data.ncl.19762237, and Video frame rate analysis: https://doi.org/10.25405/data.ncl.19762216

River Dart 地面控制点（GCPs）: 本数据集包含用于固定摄像机获取影像正射校正的地面控制点数据。X Y Z [m] 代表地面控制点在局部网格中的物理位置。X Y [px] 代表地面控制点在图像像素坐标中的对应位置。

River Dart 横截面数据：为将横截面数据加载至 KLT-IV 处理 River Dart 视频而设计的横截面数据。x、y 和 z 坐标均位于任意基准面以上的局部网格中。z 高程参考与 FileList 数据集中所示的水位高程基准面相同。

环境署流量测量数据：环境署于 1980 年至 2018 年间获取的流量测量数据，用于确定英国 Austins Bridge 上 River Dart 的河流流量。

River Dart 校准视频文件列表：记录了在校准期间获取视频时进行的水面测量日期。同时，还包括河流水位测量数据。这些水位高程参考与 GCP 和横截面数据集中的 z 高程基准面相同。

River Dart 校准视频：包含用于评估校准期间河流表面流速的视频的压缩文件夹（7Zip）。视频名称遵循以下格式：devon_dartyyyymmdd_HHMM0.mp4，其中加粗的值代表视频采集的日期和时间。视频格式为 mp4，以 19.99Hz 的帧率采集，持续时间为 10 秒。

River Dart 验证视频文件列表：记录了在验证期间获取视频时进行的水面测量日期。同时，还包括河流水位测量数据。这些水位高程参考与 GCP 和横截面数据集中的 z 高程基准面相同。

River Dart 验证视频：包含用于评估验证期间河流表面流速的视频的压缩文件夹（7Zip）。视频名称遵循以下格式：devon_dartyyyymmdd_HHMM0.mp4，其中加粗的值代表视频采集的日期和时间。视频格式为 mp4，以 19.99Hz 的帧率采集，持续时间为 10 秒。

Q 报告：包含 KLT-IV 分析输出的压缩文件夹（.zip）。该文件夹内包含用于总结每次分析的视频图像流速分析结果的 '排放量报告' 文件，格式为 html。

总结输出 1：这是在 KLT-IV 对校准和验证期间采集的视频进行分析后产生的总结输出。此数据从 KLT-IV 分析期间导出的 Q 报告 html 文件中提取。

总结输出 2：这是 KLT-IV 直接生成的总结输出。与总结输出 1 的区别在于，前者中的排放数据以视频采集的时间呈现，而后者中的排放数据以相应的河流水位测量时间呈现。两者之间可能存在最多 10 分钟的偏差。

aDcp 跨度数据：包含八个不同流量强度的 aDcp 跨度数据的 excel 文件。

与该沉积物相关数据位于以下记录中：aDcp 跨度分析后的表面 alpha 系数 https://doi.org/10.25405/data.ncl.19762237，以及视频帧率分析：https://doi.org/10.25405/data.ncl.19762216。