Data for: A novel and enhanced calibration of the tilting weir as a flow measurement structure

To achieve reliable and equitable water distribution it is necessary to accurately estimate the volumetric discharge of water flow through rivers and canals. One such method of accomplishing this is by using hydraulic structures, such as the tilting weir. This structure not only can be used to measure the discharge of water on a continuous basis, but also allows for regulating the water level upstream of the structure. Presently, tilting weirs are often used to control water levels, but the literature on their utilization as flow measurement structures has remained sparse. This study presents a thorough analysis of laboratory experiments on scaled models of tilting weirs, where the flow depth upstream of the structure (i.e., head) and the inclination angle are used to calibrate an equation to estimate the discharge to a high degree of accuracy. Operational guidelines to ensure minimum uncertainty in measurement are also given. The data published here include head and discharge measureme..., , , # DATA FOR: A NOVEL AND ENHANCED CALIBRATION OF THE TILTING WEIR AS A FLOW MEASUREMENT STRUCTURE The data published include head and discharge measurements for all experiments conducted, including information on the experimental location, date, and model dimensions. ## Description of the data and file structure Data are comma delineated with the first row indicating header names. Total number of observations is 440. Q (m^3/s) = Steady discharge in cubic meters per second, recorded at an accuracy of +/- 0.0003 m^3/s h (m) = Water surface elevation in meters measured 0.8 m upstream of crest location, taken relative to the crest elevation, p. Accuracy +/- 0.001 m. theta (degrees) = Angle of inclination of weir plate with respect to the horizontal channel bed. In degrees. p (m) = Elevation of weir crest above the horizontal channel bed. In meters. b (m) = The length of the weir crest in the transversal direction. In meters. Experiment = Refers to experimental code given in Table 1 of p...为实现可靠且公平的水资源分配，需精准估算流经河道与渠槽的水流体积流量。其中一种可行方法是借助水力结构，例如斜门堰（tilting weir）。该结构不仅可连续测量水流流量，还能调节结构上游的水位。当前斜门堰常被用于水位调控，但相关将其作为流量测量结构的研究文献仍较为匮乏。本研究针对斜门堰缩尺模型开展了系统的实验室试验分析，以结构上游水流深度（即水头）与倾角为参数，校准得到可高精度估算流量的计算公式，并给出了确保测量不确定性处于最低水平的操作指南。 本次发布的数据涵盖水流水头与流量的测量结果（原文此处存在截断），# 数据集对应主题：斜门堰作为流量测量结构的新型改进校准方法 本次发布的完整数据涵盖所有试验的水头与流量测量结果，同时包含试验地点、试验日期以及模型尺寸等相关信息。 ## 数据与文件结构说明 数据以逗号分隔，首行为表头名称。总观测样本量为440组。 Q (m³/s)：以立方米每秒为单位的稳定流量，测量精度为±0.0003 m³/s。 h (m)：在堰顶位置上游0.8米处测得的水面高程，以堰顶高程p为基准，测量精度为±0.001 m。 θ (°)：堰板相对于水平渠床的倾角，单位为度。 p (m)：堰顶相对于水平渠床的高程，单位为米。 b (m)：堰顶横向长度，单位为米。 Experiment：对应论文表1中给出的试验编号（原文此处存在截断）。