Dataset for modelling the apparent von Kármán parameter in thermally and sedimentologically stratified air flows

The dataset is used to support the article titled as "Modelling the apparent von Kármán parameter in thermally and sedimentologically stratified air flows" by the same authors. There are two spreadsheets in the datasheet.xlsx file. The first one is the 5-min block averaged data derived from the measurements by a meterologoical tower. The second one is the sand transport and saltation sensor data derived from a number of 5-10 min measurements by sand trap stacks and a Sensit. 1. Description for Spreadsheet "Tower Data": Date: Data collection date Run_number: the run number counting from the start of the experiment. Measurements were taken for 5 min for each run. UA1: resultant wind speed (m/s) measured by a 2D ultrasonic anemometer at 0.19 m above the bed UA2: resultant wind speed (m/s) measured by a 2D ultrasonic anemometer at 0.49 m above the bed UA3: resultant wind speed (m/s) measured by a 2D ultrasonic anemometer at 0.76 m above the bed UA: resultant wind speed (m/s) measured by a 3D ultrasonic anemometer at 1.49 m above the bed R_square: the R2 value for log-linear curve fitting between wind speed measured by ultrasonic anemometers and elevation R_f: flux Richardson number Rf u_star: shear velocity u* (m/s) zeta: stability parameter ζ phi_m: dimensionless wind shear Φm kappa_a: apparent von Kármán parameter κa KE: KE values measured by Sensit Q: Calculated sediment transport rate Q ( g m-1 s-1) using KE-Q relationship described in spreadsheet "Trap data" 2. Description for Spreadsheet "Trap Data": KE: KE values measured by Sensit Q: sediment transport rate Q ( g m-1 s-1) measured by sand traps The figure with regression equation describes the relationship between KE and Q.

本数据集用于支撑同作者撰写的题为《热层结与沉积层结气流中表观冯·卡门参数（apparent von Kármán parameter）建模》的论文。datasheet.xlsx文件中包含两张电子表格：第一张为基于气象塔测量得到的5分钟区块平均数据；第二张为基于多组砂捕集器与Sensit 1型传感器开展的5~10分钟测量得到的输沙与风沙跃移传感器数据。

1. 电子表格“塔基数据（Tower Data）”说明：
Date：数据采集日期
Run_number：实验启动后的连续运行编号。每组实验时长为5分钟。
UA1：床面上方0.19 m处的二维超声风速仪（2D ultrasonic anemometer）测得的合成风速（单位：m/s）
UA2：床面上方0.49 m处的二维超声风速仪测得的合成风速（单位：m/s）
UA3：床面上方0.76 m处的二维超声风速仪测得的合成风速（单位：m/s）
UA：床面上方1.49 m处的三维超声风速仪（3D ultrasonic anemometer）测得的合成风速（单位：m/s）
R_square：超声风速仪测得风速与高程之间的对数线性曲线拟合的R²值
R_f：通量理查森数（flux Richardson number）
u*：剪切流速（单位：m/s）
ζ：稳定度参数
Φ_m：无量纲风切变
κ_a：表观冯·卡门参数（apparent von Kármán parameter）
KE：Sensit传感器测得的KE值
Q：依据“捕集数据（Trap Data）”电子表格中给出的KE-Q关系计算得到的输沙率Q（单位：g·m⁻¹·s⁻¹）

2. 电子表格“捕集数据（Trap Data）”说明：
KE：Sensit传感器测得的KE值
Q：砂捕集器测得的输沙率Q（单位：g·m⁻¹·s⁻¹）
附带回归方程的图表展示了KE与Q之间的相关关系。