Journal ArticleDOI
Numerical Simulation Of Sea Breezes with Vertical Wind Shear during Dry Season at Cape of Three Points, West Africa
S. Cautenet,R. Rosset +1 more
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In this paper, the airflow over the Cape of Three Points (Gulf of Guinea: 4.5°N, 2°W) has been simulated using a three-dimensional mesoscale model in order to investigate the sea breeze developing in synoptic vertical wind shears during the 1979 dry season.Abstract:
The airflow over Cape of Three Points (Gulf of Guinea: 4.5°N, 2°W) has been simulated using a three-dimensional mesoscale model in order to investigate the sea breeze developing in synoptic vertical wind shears during the 1979 dry season. Two different meteorological situations, characterized by two contrasted wind profiles between 500 and 2000 m have been studied, with two types of transitions between the lower circulation (SW monsoon) and the upper African easterly jet (AEJ). The first one is a veering case (6 January) and the second is a backing case (23 January). Calculations of CAPE (convective available potential energy) show that whereas instability is a maximum at both sides of the cape, the site of enhanced convection is determined by the wind shear in the 500–2000 m layer. Numerical results confirm satellite observations.read more
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Satellite-based climatology of low-level continental clouds in southern West Africa during the summer monsoon season
TL;DR: In this article, the authors used synoptic observations and various satellite products for computing climatologies of low-level stratus over southern West Africa for the wet monsoon seasons July-September of 2006-2011.
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Sea breezes at Cotonou and their interaction with the West African monsoon
TL;DR: In this paper, a set of criteria based on the diurnal reversal of wind direction, the thermal gradient and the number of sunshine hours is used to identify sea breeze days in Cotonou (Republic of Benin, West Africa).