de.hamburg.icdc/amd.de.fvah/tub.dlidVAD143.l2.wind en SAMD v2.2, https://doi.org/10.25592/uhhfdm.9902 FESSTVAL fvah_tub_dlidVAD143_l2_wind Wind (mean, peak, minimum) derived from Doppler wind lidars, 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; CF-1.7 where applicable external NETCDF4 de 2.6 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 . Data processed with \"mol1_do_reproc_wl.pro\" by Deutscher Wetterdienst, version information: tub_dlidVAD143_l1_any_v00.xml Technische Universitaet Berlin Meier Fred +49 fred.meier@tu-berlin.de Institute of Geophysics and Meteorology, University of Cologne Julian Steinheuer Julian.Steinheuer@uni-koeln.de 2019-08-29 2019-09-30 600 none 30 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 with files corresponding to different configurations. For each configuration there are the Level 1 files in /DWL_L1 and the Level 2 files in /DWL_l2. 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). 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.  HALO Photonics Doppler lidar (production number: 143) 52.45717 13.31638 49 30 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 Short term observations Local observations Instrument groups Lidar 144 101 3 3 2 focus telescope focus length m lat latitude latitude degree_north lon longitude longitude degree_east nfft number of fft points 1 npls total number of averaged pulses 1 nqf nyquist frequency s-1 nqv nyquist velocity m s-1 nrg total number of range gates 1 nsmpl number of sample points per range gate 1 pd pulse duration s prf pulse repetition frequency s-1 resf frequency resolution s-1 resv resolution of Doppler velocity m s-1 smplf sampling frequency s-1 tgint total observation time per range gate s time_bnds ('time', 'nv') seconds since 1970-01 00:00:00 wl radiation_wavelength wavelength m zsl altitude m height_corg ('height',) height mask for the center of range gates heights cols ('cols',) columns of covariance matrix 1 rows ('rows',) rows of covariance matrix 1 height ('height',) vertical distance from sensor m time ('time',) time time seconds since 1970-01 00:00:00 abs_vh_mean ('time', 'height') absolute horizontal wind absolute horizontal wind m s-1 sd_abs_vh_mean ('time', 'height') sd of abs_vh standard deviation of absolute horizontal wind m s-1 covariance_matrix_mean ('time', 'height', 'rows', 'cols') covariance matrix of wind covariance matrix of wind derived with n_ef = 12 m^2 s^-2 u_mean ('time', 'height') u-component wind zonal-component towards east of wind m s-1 v_mean ('time', 'height') v-component wind meridional-component towards north of wind m s-1 w_mean ('time', 'height') w-component wind vertical-component away from the surface of wind m s-1 vh_dir_mean ('time', 'height') direction of horizontal wind direction of horizontal wind ° abs_vh_gust_peak ('time', 'height') absolute horizontal wind gust peak absolute horizontal wind gust peak m s-1 sd_abs_vh_gust_peak ('time', 'height') sd of abs_vh gust peak standard deviation of absolute horizontal wind gust peak m s-1 covariance_matrix_gust_peak ('time', 'height', 'rows', 'cols') covariance matrix of wind gust peak covariance matrix of wind derived with n_ef = 2 gust peak m^2 s^-2 u_gust_peak ('time', 'height') u-component wind gust peak zonal-component towards east of wind gust peak m s-1 v_gust_peak ('time', 'height') v-component wind gust peak meridional-component towards north of wind gust peak m s-1 w_gust_peak ('time', 'height') w-component wind gust peak vertical-component away from the surface of wind gust peak m s-1 vh_dir_gust_peak ('time', 'height') direction of horizontal wind gust peak direction of horizontal wind gust peak ° abs_vh_gust_minimum ('time', 'height') absolute horizontal wind gust minimum absolute horizontal wind gust minimum m s-1 sd_abs_vh_gust_minimum ('time', 'height') sd of abs_vh gust minimum standard deviation of absolute horizontal wind gust minimum m s-1 covariance_matrix_gust_minimum ('time', 'height', 'rows', 'cols') covariance matrix of wind gust minimum covariance matrix of wind derived with n_ef = 2 gust minimum m^2 s^-2 u_gust_minimum ('time', 'height') u-component wind gust minimum zonal-component towards east of wind gust minimum m s-1 v_gust_minimum ('time', 'height') v-component wind gust minimum meridional-component towards north of wind gust minimum m s-1 w_gust_minimum ('time', 'height') w-component wind gust minimum vertical-component away from the surface of wind gust minimum m s-1 vh_dir_gust_minimum ('time', 'height') direction of horizontal wind gust minimum direction of horizontal wind gust minimum °