The Myres Hill remote sensing intercomparison study: preliminary results

Clive, P.J.M. and Chindurza, I. and Ravey, I. and Bass, J. and Boyle, R.J. and Jones, P. and Lang, S.J. and Bradley, S. and Hay, L. and Oldroyd, Andrew and Stickland, M.T. (2008) The Myres Hill remote sensing intercomparison study: preliminary results. In: 14th International Symposium for the Advancement of Boundary Layer Remote Sensing, 2008-06-23 - 2008-06-25.

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Abstract

Two remote sensing techniques (SODAR and LIDAR) have been developed for measuring wind speed and turbulence from ground level up to altitudes of 300 m or higher. Although originally developed in the defence sector, these techniques are now generating considerable interest in the renewable energy and meteorological sectors. Despite the benefits of these instruments they are not yet generally accepted for due diligence measurements by wind energy developers and financial institutions. There is a requirement for a series of independent assessments of these new metrology techniques, comparing their measurements with the approved cup-type anemometer readings. This is being addressed at TUV NEL's Myres Hill wind turbine test site in a measurement programme supported by the DIUS National Measurement Systems Measurement for Innovators scheme and a consortium of 21 industrial collaborators. Data from SODAR and LIDAR systems are being compared with results from cup-type anemometers mounted at different heights on an 80m meteorological mast. An ultrasonic sensor is also mounted on the mast. The objective of the test programme is to assess the effectiveness of SODAR and LIDAR wind speed measurement techniques under different operating regimes and atmospheric conditions. Results from the measurements will provide definitive data on the performance of the remote wind speed sensing techniques under test on complex terrain typical of many wind farm sites. Preliminary measurements based on data acquired during the initial measurement campaign are presented.