The Annual And Monthly Variation Reoccurence For The Tropical Cyclones(Hurricane) And Other Phenomena That Have An Impact On

Abstract

Tropical cyclones formed between latitudes (10-20) north and south of the equator and sometimes wit hen (5) degree north and south of the equator, and composed without the lack of Coriolis force on the equater itself > The phenomenon liturgical do not occur only if a number of conditions with high temperature water to (27 degrees clesius) or more and the depth (50 meters),leading to low pressure to(850 mb) sometimes generators instability of the air column above the water ,which increases the evaporation process unit with a severe decrease in temperature to rise with no wind shear because it hinders the process of the evalution of cyclone.The availability of these conditions consists hurricane eye component that of a few kilometers in diamter and features reposefully air and free of clouds revolve around cumulus clouds in a spiral pattern component huge wall with heavy rain clouds rising up to (150 miles).The move hurricane in generally from west to east and fades once it enters the land.And be for the Intertropical Convergence Zone big role in control sites of hurricanes, and the phenomenon of the items in increasing occurrences hurricanes.It also AL-Nino to increase reoccurence hurricane unlike lanina that reduces reoccurence ,in addition to the Global Warming has been instrumental in increasing frequency hurricane which is the largest repetitions in the Western Pacific Ocean , followed by East Ocean itself and then the North Atlantic and South Pacific and finally the Northern Indian Ocean