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Distribution and statistics of African mesoscale convective weather systems based on the ISCCP Meteosat imagery

Hodges, K. I. and Thorncroft, C.D. (1997) Distribution and statistics of African mesoscale convective weather systems based on the ISCCP Meteosat imagery. Monthly Weather Review, 125 (11). pp. 2821-2837. ISSN 0027-0644

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To link to this article DOI: 10.1175/1520-0493(1997)125<2821:DASOAM>2.0.CO;2

Abstract/Summary

This paper provides for the first time an objective short-term (8 yr) climatology of African convective weather systems based on satellite imagery. Eight years of infrared International Satellite Cloud Climatology Project-European Space Agency's Meteorological Satellite (ISCCP-Meteosat) satellite imagery has been analyzed using objective feature identification, tracking, and statistical techniques for the July, August, and September periods and the region of Africa and the adjacent Atlantic ocean. This allows various diagnostics to be computed and used to study the distribution of mesoscale and synoptic-scale convective weather systems from mesoscale cloud clusters and squall lines to tropical cyclones. An 8-yr seasonal climatology (1983-90) and the seasonal cycle of this convective activity are presented and discussed. Also discussed is the dependence of organized convection for this region, on the orography, convective, and potential instability and vertical wind shear using European Centre for Medium-Range Weather Forecasts reanalysis data.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Mathematical and Physical Sciences > Environmental Systems Science Centre
ID Code:172
Publisher:AMER METEOROLOGICAL SOC

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