Convection in an African Easterly Wave over West Africa and the Eastern Atlantic: a Model Case Study of Hurricane Helene (2006) and its Interaction with the Saharan Air Layer

Abstract

Convective systems over West Africa and the eastern Atlantic embedded in the African Easterly wave out of which Hurricane Helene (2006) developed are investigated by means of potential temperature and relative vorticity budgets. The tropical cyclogenesis of Helene was accompanied by several mineral dust outbreaks. The influence of the dust-radiation interaction on the processes leading to the formation of Helene is analysed. The study is based on COSMO and COSMO-ART model runs

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