Influences of Topography on Characteristics of Typhoon Crossing Leizhou Peninsula

The characteristic variations of 29 typhoons and tropical storms crossing Leizhou Peninsula in years 1949 to 1993 have been analyzed. The results show that: the intensities of typhoon and tropical storms begin decreasing obviously at 6 hours before landing; the shrink of the gale area of the tropical storms is more than that of the typhoon; the influences of Leizhou Peninsula on the moving directions of typhoons are earlier than those of tropical storms; but no tropical cyclone turns southward obviously before and after crossing the peninsula.