气象研究与应用2018，Vol.39Issue(1)：1-5,23,6.
洞庭湖流域夏季降水特征及旱涝年份大气环流分析
Characteristics of summer precipitation in Dongting Lake basin and analysis of atmospheric circulation in drought and flood years
黎燚隆 1章新平 1尚程鹏1
作者信息
- 1. 湖南师范大学资源与环境科学学院,湖南 长沙 410081
- 折叠
摘要
Abstract
Based on the monthly precipitation data and NCEP/NCAR reanalysis data of 96 meteorological stations in the Dongting Lake basin for 1961-2015 years, this paper analyzed the temporal and spatial variations of the summer precipitation in the Dongting Lake in 55 years and the characteristics of the atmospheric circulation in the typical summer flood years and summer drought years. The results showed that there are distinct interannual and interdecadal variabilities in summer precipitation in 55yr and there are quasi 3yr and 20yr cycles. The average summer precipitation in the basin had a spatial distribution characteristic of increase from the middle north plain to the surrounding mountainous area. From the situation of atmospheric circulation, water vapor transport, and convergence, the typical summer flood(drought) year corresponds to the large area of the subtropical high in the Northwest Pacific, the strong intensity, and the anomalous convergence of the water vapor above the river basin.关键词
洞庭湖流域/夏季降水/大气环流/水汽输送Key words
Dongting Lake basin/summer precipitation/atmospheric circulation/water vapor transport分类
天文与地球科学引用本文复制引用
黎燚隆,章新平,尚程鹏..洞庭湖流域夏季降水特征及旱涝年份大气环流分析[J].气象研究与应用,2018,39(1):1-5,23,6.
