1. Short Description of the Sensor The scanning WINDCUBE family uses the same pulsed Doppler technology as the well-known and widely used WINDCUBE vertical profiler. Fiber technology used in all WINDCUBE Lidars is designed to meet strong operational requirements and optimal instrument compactness. The modularity allows the use of the WINDCUBE 100S/200S/400S with different scanning scenarios (PPI, RHI, LOS, DBS) adapted to multiple applications. WINDCUBE 100S/200S/400S offer the most advanced technique to measure the wind components on a large scale for short-term campaigns or long-term operations to reduce uncertainties, understand physical phenomena (such as wakes), or improve forecasting. Dimension (L-W-H) (mm): 1008x814x1365 with scanning head and minimum feet extension Weight 232 kg without options Outdoor conditions ambient temperature: -25°C - +45°C Permeability: IP65 Humidity: 10% - 100% Resistant to salty environment: ISO 9227 power consumption 500 W - 1600 W (range includes use of coolers and heaters) Scanning modes PPI: The lidar emits pulses of light and measures the backscattered light from atmospheric particles (aerosols, cloud droplets, etc.). By rotating its beam at a constant elevation angle, the lidar creates a "slice" of the atmosphere at that height. Scanning by varying the azimuth at a constant elevation. RHI: RHI scans involve varying the elevation angle while keeping the azimuth angle constant, creating a vertical slice of the atmosphere. DBS: scanning technique used in Doppler wind lidar for measuring wind velocity profiles. It involves directing the lidar beam at different angles (including a vertical beam) to collect radial velocity measurements, which are then used to calculate the horizontal and vertical wind components. LOS: Stare or step-stare scanning mode to measure the radial wind along a fixed line of view. 1.2 Specification Accumulation time 0.5 to 10 s (1s is standard) Max. typical range up to 3000 m Maximum range 14300 m Physical range resolution 25, 50, 75, 100 m Distance between two range gates Down to 1 m with gate overlapping Number of range gates up to 320, depending on the range gate length used First range of measurement More than twice the range gate length Scanner rotation speed Up to 30°/s Azimuth angle Between 0° and 360° (with 0.1° increment) Elevation angle Between -19° and 199° (with 0.1° increment) 2. Measurement Strategy during the Campaign 2.1 Description of data collection The data collection comprises the following consecutive scanning modes run in a loop. PPI Range (Distance along the line of sight, between the instrument and the center of each range gate): 50 - 1300 m 🡨 range = range gate length*2 x ((gate index) + 1) Range gate length: 25 m Gate index: 0 – 25 Elevations (fix): 15 – 45° in 5° steps Azimuth (swinging): 251 – 310° in 1° step (corrected from 261 – 320 to compass alignment) PPI sequence: 7 scans Single PPI duration: 59 s PPI sequence duration: 413 s RHI Range (Distance along the line of sight, between the instrument and the center of each range gate): 50 - 1300 m 🡨 range = range gate length*2 x ((gate index) + 1) Range gate length: 25 m Gate index: 0 – 25 Elevations (swinging): 6 – 45° in 1° steps Azimuth (fix): 250 – 310° in 5° step (corrected from 261 – 320 to compass alignment) RHI sequence: 13 scans Single RHI duration: 39 s RHI sequence duration: 507 s DBS Range (Distance along the line of sight, between the instrument and the center of each range gate): 52 - 1708 m Range gate length: 25 m Gate index: 0 – 32 Measurement height: 1650 m 🡨 measurement height = range gate length*2 x ((gate index) + 1) Elevations (fix): 75° + 90° Azimuth (fix): cardinal points Single DBS duration: 10 s The entire scan cycle (PPI+RHI+DBS) lasts approximately 16-17 minutes 2.2 Time period covered by the data 12 July 2025 - 22 October 2025 2.3 Time zone UTC 2.4 Physical location Latitude 45.6654264; Longitude 10.82369476; Altitude 1316 m 3. Data Processing 3.1 Description of derived parameters and processing techniques used Original data files are provided 3.2 Description of quality assurance and control procedures This dataset was not subject to any quality control or processing. It is provided in its original form. 4. Data Format 4.1 Data file structure NetCDF files with metadata (WindLidar native), zipped. One file per single scan. Data are within the wind_and_aerosols_data folder within the zip file 4.2 File naming convention WLS100s-173_YYYY-MM-DD_HH-mm-SS_[scan type]_[scan_id]_[range gate in meter].nc 4.3 List of relevant parameters and units All the scans provide measurements of the radial speed (m/s) as a function of time (s) and along the scan beam (range, m), defined by the azimuth and elevation angles, together with the carrier-to-noise ratio (CNR) and the radial speed confidence index for quality checking the measurements. The DBS scans also provide horizontal wind speed, wind direction and vertical wind speed computed using the last four inclined scans; given that each DBS scan consists of 4 inclined scans plus a vertical one and that each scan cycle (PPI+RHI+DBS) for the current dataset lasts approximately 16-17 minutes, only the last of the inclined DBS scan allows to compute the instantaneous speed. The previous 3 rely on a mix between the current and the previous inclined scans, with approximately 16-17 minutes of time lag. 5. Data Remarks 5.1 Known missing data periods Missing the whole 29-08-2025 due to insufficient power supply 5.2 Software compatibility All software that can read and process NetCDF files