THE IMPACT OF SURFACE FRICTION AND OROGRAPHICAL FORCING ON THE EAST ASIA COASTAL CYCLOGENESIS

A series of numerical experiments for a case of East Asia coastal cyclogenesis were carried out by using ECMWF grid point limited area model.The results show that the decreasing of the surface friction over the ocean is essential for the cyclone development and the mechanical forcing of the Qinghai,Tibet Plateau acts as a damping effect in the initial stage of the cyclone,