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.