de.koeln.rrzk/amd.de.sups/rao.dlidVAD01.l1.any SAMD v.1.0 en FESSTVAL sups_rao_dlidVAD01_l1_any Doppler Lidar velocity azimuth display data, Doppler wind lidar wind and gust data from FESTVAL 2019/2020, Falkenberg DOI:10.25592/uhhfdm.9758 Steinheuer, Julian (1); Detring, Carola (2); Kayser, Markus (2); Leinweber, Ronny (2); (1) Institute for Geophysics and Meteorology, University of Cologne, Cologne, Germany; (2) Deutscher Wetterdienst, Meteorological Observatory Lindenberg – Richard-Aßmann-Observatory, Lindenberg, Germany; 2020-08-11 11:57:25.130265 UTC CF-1.6 external Data processed by DWD/RAO with wl2netCDF-client NETCDF4 16 daily 1 This data is subject to the FESSTVaL data policy to be found at https://doi.org/10.25592/uhhfdm.9890 and in the SAMD Observation Data Product Standard https://doi.org/10.25592/uhhfdm.9902 . Level 1 files have been created by Deutscher Wetterdienst, Meteorologisches Observartorium Lindenberg (info@dwd.de) Institute for Geophysics and Meteorology, University of Cologne, Cologne, Germany Julian Steinheuer Julian.Steinheuer@uni-koeln.de 2020-08-11 2020-08-23 1.5 none none Falkenberg, Germany This data set contains level 1 and level 2 Doppler wind lidar  measurements during 20190815 and 20200831 from different  configurations and three different instruments (Halo Photonics  Streamline). The purpose of the project part was to evaluate the  ability of lidars to retrieve wind gusts. The instruments were  replaced next to the Falkenberg meteorological tower in order to have  a reference measurement of a sonic anemometer at 90.3m. The level 2  data are reproducible with this  (https://doi.org/10.5281/ZENODO.5780949) code. The data are structured  in folders for years (fesstval_2019 and fesstval_2020), for different  devices (wl_***, sonic), and foldersof the corresponding different  configurations. For each configuration there are the Level 1 files in  level_1_** (where ** denoted the creator) and Level 2 files in  level_2_js. The folder /sonic contains Level 2 files for the sonic  anemometer in 90.3m of the Falkenberg meteorological tower. In the  folders are daily netcdfs-files in SAMD convention with radial Doppler  velocities (level1) and 10 minutes mean wind and wind gust peaks  (level 2). The lidar wl_44 (fesstval_2020) was located in Lindberg  (~5km north of Falkenberg). Quality: The data set does not contain a full time period but the result of a test campaign where configuration changes and breaks where made. The retrieval contains uncertainty estimates for each retrieved wind value. The data are based on a new approach and further testings are appropriate. none HALO Photonics Doppler lidar (system_id: 78) 52.16715 14.12275 80 none

code

2021 Steinheuer, Julian none Zenodo. https://doi.org/10.5281/zenodo.5780949

Data set

2021 Steinheuer, Julian; Detring, Carola; Kayser, Markus; Leinweber, Ronny none http://doi.org/10.25592/uhhfdm.9758 Long term observations Local observations Supersites RAO Long term observations Local observations Variable groups Atmospheric state Long term observations Local observations Variable groups Cloud properties Long term observations Local observations Instrument groups Lidar 100 2 14742 lon longitude longitude degrees_east prf pulse repetition frequency s-1 pd laser duration seconds zsl altitude m resf frequency resolution s-1 nsmpl points per range gate 1 tgint total observation time per range gate s npls number of pulses per ray 1 nrg total number of range gates per ray 1 focus telescope focus length m wl radiation_wavelength laser center wavelength m lrg range gate length m nfft number of fft points 1 smplf sampling frequency s-1 range_bnds ('range', 'nv') m resv resolution of Doppler velocity m s-1 lat latitude latitude degrees_north nqf nyquist frequency nqv nyquist velocity range ('range',) line of sight distance towards the center of each range gate m nv ('nv',) dv ('time', 'range') doppler_velocity radial velocity of scatterers away from instrument m s-1 errdv ('time', 'range') doppler_velocity_error error of Doppler velocity m s-1 intensity ('time', 'range') backscatter_intensity backscatter intensity: b_int = snr+1, where snr denotes the signal-to-noise-ratio 1 beta ('time', 'range') volume_attenuated_backwards_scattering_function_in_air attenuated backscatter coefficient m-1 sr-1 azi ('time',) sensor_azimuth_angle sensor azimuth due reference point degree zenith ('time',) zenith_angle beam direction due zenith degree time ('time',) time Time seconds since 1970-01-01 00:00:00