The focus of the present thesis is on lower tropospheric wind with two different key aspects. The first part is the three-dimensional (3D) wind retrieval from dual- Doppler (DD) lidars, an upcoming instrumentation in scientific field campaigns. The retrieval method and its performance are presented, and optimized scanning strategies are suggested. The second part deals with operational multiyear series of lower boundary layer wind observations. In addition to meteorological towers, measurements at wind turbines could be exploited for both analysis and model validation.