The higher-resolution simulations are successful in reproducing the small-scale impacts of the peninsula and local coasts (breeze deviations, wakes, flow divergences), and in demonstrating the complexity of the breeze fields close to the surface over the bay. In conditions of offshore synoptic flow, the simulations demonstrate that the semi-circular shape of the bay induces a corresponding circular shape in the offshore zones of stagnant flow preceding the sea-breeze onset, which move further offshore thereafter. Comparisons of the simulations with the experimental data obtained at three sites reveal a good agreement of the flow over the bay and around the Quiberon peninsula during the daytime periods of sea-breeze development and weakening. The Weather Research and Forecasting mesoscale model is used to assimilate the meteorological data. Three nested computational domains with increasing horizontal resolution down to 100 m, and a vertical resolution of 10 m at the lowest level, are used to reproduce the local-scale variations of the breeze close to the water surface of the bay. A reanalysis of numerical simulations performed with the Advanced Regional Prediction System model is presented. We complete the analysis of the data obtained during the experimental campaign around the semi circular bay of Quiberon, France, during two weeks in June 2006 (see Part 1). Further, a possible reason for the sudden disappearance of aircraft near the coast of Florida is suggested. Forecast predictions of a sea-land breeze w-Front and of MWT (Mountain Wave Turbulence) were performed by regional atmospheric models with a resolution no lower than 2 km. Some recommendations are proposed to prevent such aircraft accidents near coastal airfields. The critical value of the vertical wind speed in a sea-land front (SLF) was determined to be ~0.5ā1.0 m sā1. Upon encountering an upward vertical front, the airstream over the plane wing was disrupted and, as a result, the aerodynamic lifting force suddenly and dramatically decreased. Failures related to aircraft aerodynamics caused these air catastrophes. The causes of aircraft crashes were investigated for several accidents, such as the Tu-154 and the Airbus A320-211 crashes near Sochi, Russia the Airbus A320-232 crash near the Perpignan airport and the Airbus A310-324 crash during landing in Moroni, Comoros Islands.
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