Water vapor is one of the most concerned elements of atmospheric probing.Using NCEP reanalysis data and considering the terrain,the water vapor characteristics (e.g.distribution of water vapor,transport of water vapor,its convergence and divergence) in one sub-region of the Qinghai-Xizang Plateau (QXP),the southeast side of the QXP,are analyzed by the climate diagnostic methods.Based on its water vapor characteristics,the quantitative research of radiosonde stations Increase is developed.The results show that the water vapor transport and seasonal differences of atmospheric precipitable water show that the QXP in the southeast is the interaction region of East Asian monsoon and South Asian monsoon.The southeast side of the QXP is the most important water vapor channel in northeast hemisphere,especially in autumn,winter and spring.The atmospheric precipitable water in the southeast side of the QXP is significantly larger than the southwest side of QXP,the reason are directly related to the combination the southward convex curved terrain of the QXP and low latitude plateau terrain.For moisture convergence and divergence,terrain is a complex and special role in the southeast side of the QXP.Its role is not only exist level differences,but also exist longitudinal and latitudinal differences.Base on quantitative research about the key area of water vapor detection,the urgent area to increase radiosonde stations include northwestern of Yunnan-southeastern of Tibet-northern of Burma,eastern of Yunnan-western of Guizhou (near 25°N) and southwest of Yunnan.
The southeast side of the Qinghai-Xizang PlateauTerrainWater vapor characteristicsRadiosonde stations composition
NETL
NSTL
维普
万方数据
