The Statistical Analysis of the Tropical Cyclone Influencing the Northern China

The typhoon year-book data (1949-1994)are used to analyse the tropical cyclone.First,the tropical cyclones entered in north of 30°N and west of 125°E are defined as the influencing the northern China tropical cyclones.Then according to the track differences of rtopical cyclones,they are further classified into six kinds(Northwards before landfall,turn before landfall,northwards after landfall,filling after landfall,turn after landfall and westwards).In the last,the climate features of each kind of tropical cyclones are analysed in detail.

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