A STUDY ON HOW TO ESTIMATE OFFSHORE WIND CONDITION USING ONSHORE OBSERVATION DATA AND NUMERICAL SIMULATION

Abstract

Together with LiDAR observation data at an onshore site, a CFD model and a Meso-scale model are used to estimate wind condition at an offshore site, approximately 2 km away from the onshore site. The LiDAR observation shows that the wind conditions in the study area are greatly affected by thermodynamic phenomenon such as land and sea breezes as well as by dynamical effects from neighboring onshore topography. It is found that since the CFD model cannot take into account such thermodynamical effects, it can have larger estimation errors than the Meso-scale model. A proper choice of the height the LiDAR data of which is used as input into CFD model seems to be a key to the success of the estimation.