The objective of this study is to present a methodology for testing and evaluation of remotes sensing instruments that makes use of two test sites in flat and complex terrain. A system intercomparison experiment is presented to illustrate the method. One sodar and two lidar (pulsed and continuous wave) systems are benchmarked with respect to reference cup anemometer and other mast-based instrumentation. Besides. The evaluation comprises three steps: single-point regression, ensemble profile analysis and performance indicator summary. Apart from the influence of the terrain complexity on the flow field, it is also investigated the influence of the background atmospheric stability by classifying the results with the Richardson number in flat terrain and the Froude number in complex terrain. The result is a thorough field calibration of the instruments for a wide range of terrain-flow conditions fit for the purpose of conducting wind resource assessment campaigns.
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