South Baltic Wind Atlas: South Baltic Offshore Wind Energy Regions Project

max. 2000 char.): A first version of a wind atlas for the South Baltic Sea has been developed using the WRF mesoscale model and verified by data from tall Danish and German masts. Six different boundary-layer parametrization schemes were evaluated by comparing the WRF results to the observed wind profiles at the masts. The WRF modeling was done in a nested domain of high spatial resolution for 4 years. In addition the longterm wind statistics using the NCAR-NCEP reanalysis data were performed during 30 years to provide basis for a long-term adjustment of the results and the final WRF results include a weighting for the long-term trends variability in the South Baltic Sea. Observations from Earth observing satellites were used to evaluate the spatial resolution of the WRF model results near the surface. The QuikSCAT and the WRF results compared well whereas the Envisat ASAR mean wind map showed some variation to the others. The long-term analysis revealed that the South Baltic Sea has a spatially highly variable wind climate during the 30-years. In no event will Risø National Laboratory for Sustainable Energy or any person acting on behalf of Risø DTU be liable for any damage, including any lost profits, lost savings, or other incidental or consequential damages arising out of the use or inability to use the results presented in this report, even if Risø DTU has been advised of the possibility of such damage, or for any claim by any other party. ISBN 978-87-550-3899-8

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