Annual Variation of Surface Pressure on a High East Asian Mountain and Its Surrounding Low Areas

Abstract

An inverse annual variation is observed between surface pressure on the highest mountain, which has an elevation of approximately 4000 m, and in the lowlands of Taiwan (a subtropical island in east Asia). This inverse annual variation in surface pressure of high and low elevation in low latitudes reflects, essentially, a vertical phase reversal of the tropical circulation, which is illustrated with the annual variation in the vertical structure of tropical geopotential height.