Report on models for extreme winds (NEWA Deliverable D4.2)

This report describes the procedures that were proposed to derive extreme wind estimates for the New European Wind Atlas (NEWA). Data basis for the estimations are the NEWA mesoscale simulations comprising the NEWA mesoscale wind atlas. A modified Spectral Correction Method (SCM) is applied to take the smoothing effect of these data in comparison to on-site measurements into account. Initial verifications show that this correction approach works quite well for simple offshore sites without significant miscroscale effects. For more complex sites an additional downscaling approach is required, that is described in this report but could not applied anymore due to missing input data which are required from the processed wind atlas data