Sea breezes are important in coastal regions because of the impact they have on local temperatures and human comfort. The collision of sea breezes can also play an important role in the triggering of convection over islands, or over peninsulas such as the SW of the UK. There are two potential drivers for wind farm impacts on sea and land breezes: the first being increases to night time surface temperatures reducing the strength of a land breeze and secondly the additional turbulent mixing and drag affecting both sea and land breezes. It is unclear what the implications of these secondary impacts are for the strength and propagation of sea breezes.
In order to understand these effects, numerical simulations are presented using the Weather Research and Forecasting model. Both idealised simulations and case study simulations are used to analyse the dynamical changes that occur with offshore wind farms and also see how these may affect areas in the UK with strong convective activity.