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Validation of Long Range Wind Lidar for Atmospheric Dynamics Studies in the LUAMI campaign

L. Sauvage, M.B. Boquet, J-P.C. Cariou, Parmentier R. P., S. Lolli

Leosphere

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Abstract
To fully understand atmospheric dynamics, climate studies, energy transfer and weather prediction, the wind field is one of the most important atmospheric state variables. Studies indicate that a global determination of the tropospheric wind field to an accuracy of 0.5 m/s is critical for improved numerical weather forecasting. Leosphere recently developed a long range compact, eye safe and transportable wind Lidar capable to fully determine locally the wind field in real time in the planetary boundary layer (PBL). The WindCube WLS70 is a new generation wind Lidar developed for meteorological applications. The Lidar is derived from the commercial Windcube ™ widely used by the wind industry and has been modified increasing the range up to 4 km. In this paper are presented some results of the intercomparison measurement campaign LUAMI which took place in Lindenberg, Germany in December 2008 where the WLS70 Wind Lidar was validated against Radars and Sodars The results show a very good agreement between the instruments. Moreover, the WLS70 wind Lidar measurements put in evidence both horizontal and vertical wind speed and wind direction vertical profiles and atmosphere structure (PBL height , clouds top and base) derived from Lidar data with good time resolution (10s/profile), good range resolution (50m from 100m to 2000m), and good velocity resolution (0.2m/s).