Ground-based remote sensing of wind vector and visibility latest results from guideline development

摘要

The guideline series VDI 3786 "Environmental meteorology; Meteorological measurements" is organized into several parts. The present guideline VDI 3786 Part 14 describes the determination of the three-dimensional wind vector using Doppler LIDAR ("LIght Detection and Ranging" or "Light Identification, Detection and Ranging"). The guideline refers to guideline VDI 3786 Part 2 with regard to the definition of the measurement variable wind and goes back to the guideline VDI 3786 Part 1 in considering the averaging time. Use is also made of the guideline VDI 3786 Part 8. Safety problems are not treated; reference may be made here to relevant Standards [VBG 93, DIN EN 60825-1].Wind profiles in the atmospheric boundary layer yield a very important contribution also to the investigation of atmospheric exchange processes. The wind field in the atmospheric boundary layer is highly variable in spatial and temporal scales. For a few applications a mote frequent wind sensing is necessary, i.e. - on airports located in low level jet areas, - near chemical plants to get information of the transport of toxic gases from leakages, - for meteorology in general to improve the weather forecast, - for environment protection purposes like dispersion studies.