Zerhouni, A. (Hydromteorological Institute of Training and Research, Oran - Algeria)
It is a statistic study of cyclogenesis related to mobile depressions affecting the West Mediterranean basin and North Africa during the period from 1980 to 1984. In addition to the known areas for their cyclogenetic activity, an emphasis is made on other areas such as West Hoggar, Portugal and West region of France. This study includes the occurrence frequencies and intensities of cyclones and their duration, which will be completed by their effect on the climat of the region.