EFFECTS OF NORTH PACIFICWINTER BLOCKING HIGH ON WESTWARD ROUTES OF SHIPS

The synoptic situations are analyzed, by using ten year data, of the construction, maintenance and disintegration of the North Pacific winter blocking high, combined with theories of meteorological ship navigation guide, meteorological ocean route selecting technology and the factors that affects ocean route selection. It is pointed out that the block high patterns are favorable to the navigation on the high-latitude winter westward route in the North Pacific.