The airborne measurement platform MASC-3 (Multi-Purpose Airborne Sensor Carrier) is used for measurements over a forested escarpment in the Swabian Alps to evaluate the wind field. Data from flight legs between 20 and 200 m above the ground on two consecutive days with uphill (westerly) flow in September 2018 are analyzed. In the lowest 140 m above the ground a speed-up is found with increased turbulence and changes in wind direction directly over the escarpment, whereas in the lowest 20 to 50 m above the ground a deceleration of the flow is measured. Additionally, simulation results from a numerical model chain based on the Weather Research and Forecasting (WRF) model and an OpenFOAM (Open Source Field Operation and Manipulation) model, developed for complex terrain, are compared to the data captured by MASC-3. The models and measurements compare well for the mean wind speed and inclination angle.

机载测量平台MASC-3（多功能机载传感器载体）用于在Swabian阿尔卑斯山的森林悬崖上进行测量，以评估风场。分析了2018年9月连续两天来自上空20至200 m的飞行航段的数据，其中有向上（向西）流动。在距地面最低的140 m处发现加速，湍流增加，并且风向直接在悬崖上方变化，而在距地面最低的20至50 m处，测得流量减慢。此外，将基于天气研究和预报（WRF）模型和针对复杂地形开发的OpenFOAM（开源现场操作和操纵）模型的数值模型链的仿真结果与MASC-3捕获的数据进行了比较。