Rausch, Thomas; Schuchard, Malte; Cañadillas, Beatriz; Lampert, Astrid (2021): One year measurements of vertical profiles of wind speed and wind direction from 40 to 500 m at Braunschweig, North German Plain, Lower Saxony, Germany [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.927744

A Doppler Wind-LiDAR (WindCube WLS8-8 [1] from the manufacturer Leosphere, France) was installed at Braunschweig airport (ICAO identifier EDVE, 10°33.27′E, 52°19.15′N, 91 m altitude asl) in the North German Plain, and operated continuously for a period of an entire year (from 1 June 2013 to 2 June 2014). The site is located about 50 km North of the nearest low mountain range (Harz mountains with an elevation of up to 1141 m) and about 250 km South of the Baltic and North Sea. It is located about 60 km East of Hanover. Within Braunschweig, the site is located at the periphery in the North East of the city. During the prevailing westerly wind direction, the site is not influenced by the main city plume. However, for southerly wind directions, the site could be influenced by the urban boundary layer, which could alter the wind profiles.

The Wind-LiDAR provided the vertical profiles of the wind speed components, measured by means of the Doppler Beam Swinging technique. Four lines of sight are sequentially scanned by a 1.54 µm pulsed fiber laser to perform the geometrical computation of the 3D wind vector components. From the raw data, the average horizontal wind speed and wind direction is calculated routinely for intervals of 10 min.

The Wind-LiDAR continuously collected profiles of wind speed and wind direction at 24 altitudes (40 m to 500 m, with a vertical resolution of 10 m up to 100 m, 20 m up to 400 m, and 50 m up to 500 m). The data availability ranged from 96.4% at 70m to 69.0% at 500m for the entire measurement campaign. Data gaps are mainly caused by low clouds and fog, which cannot be penetrated by the laser pulses.