Water Vapor Transport Characteristics of South China Sea Westbound Typhoon which Affected Yunnan Plateau

Abstract

The South China Sea westbound typhoon is one of the major weather systems which affected the precipitation on the Yunnan plateau.The study of water vapor transport characteristics is the base to the prediction and analysis of precipitation.The study used 10-year's westbound typhoon cases from 2010 to 2019 and appropriate NCEP reanalysis data.The study showed that： （1） The water vapor transported to Yunnan by the westbound typhoon were mainly via three paths， Eastern path， Southern path and Northern path.The Eastern path contributed most of water vapor， less contributed by the Northern path.The water vapor contributed by the Southern path were mixed water vapor from the Bay of Bengal and South China Sea； （2） Themajority of water vapor were from the Eastern path and the Southern path.The westbound It's a little bit complicated for the Southwest side of the Southern path， as it mixed the water vapor from the Bay of Bengal and South China Sea.

Keywords

• south china sea westbound typhoon
• water vapor transport characteristics
• yunnan plateau
• landing
• water vapor path