Journal of Arid Meteorology
YAN Zhenning1, MA Xueqian2
Based on the precipitable water vapor (PWV ) of four sounding stations and NCEP grid data, the air temperature and precipitation at ground meteorological stations in Qinghai Province, the characteristics of PWV in different climatic regions in the Qinghai Plateau and the relationship between PWV and air temperature, precipitation were investigated. The results show that the variation trend of NCEP PWV was generally consistent with the PWV estimated by using sounding data. There were remarkable differences about the seasonal and ten-day change features of PWV in different stations. The lower the altitude was, the higher the PWV was, and it had more close relation with topography. Also, it was clearly indicated that PWV in higher elevation areas was largely related to atmospheric circulations and weather systems. It was also concluded that precipitation more than 10 mm was directly proportional to the PWV with higher transformation rate from water vapor into precipitation. There was no obvious correlation between precipitable water vapor and small or no precipitation, and the transformation rate was lower. In addition, although precipitation was proportional to temperature and PWV , temperature and PWV could not be applied to entirely determine precipitation because of complicated rainfall processes occurring in the Qinghai plateau.
precipitable water vapor,
the Qinghai Plateau
YAN Zhenning1, MA Xueqian2. Comparison and Analysis of Precipitable Water Vapor
in Different Regions of the Qinghai Plateau[J]. Journal of Arid Meteorology, DOI: 10.11755/j.issn.1006-7639(2018)-03-0365.
燕振宁1，马学谦2. 青海高原不同地区大气水汽含量对比分析[J]. 干旱气象, DOI: 10.11755/j.issn.1006-7639(2018)-03-0365.
Add to citation manager EndNote|Ris|BibTeX
©2018 Journal of Arid Meteorology
Tel： 0931-2402270、0931-2402775 Email：email@example.com、firstname.lastname@example.org