江西农业学报Issue(3)：116-119,4.
葫芦岛夏季降水特征和大气环流异常分析
Analysis of Summer Precipitation Characteristics and Atmospheric Circulation Anomalies in Huludao
孟振雄 1唐帅2
作者信息
- 1. 辽宁省葫芦岛市气象局，辽宁 葫芦岛 125000
- 2. 辽宁省兴城市气象局，辽宁 兴城 125100
- 折叠
摘要
Abstract
The NCEP/NCAR reanalysis monthly mean data and the summer ( from June to August ) precipitation data of 4 me-teorological stations in Huludao area during 1981~2010 were used to study the interannual variations in summer precipitation and atmospheric circulation.The results showed that:in the past 30 years, the summer rainfall in Huludao coastal region was linearly downward , but the trend was not significant;the summer rainfall in the western region was linearly upward , and the trend was sig-nificant .The spatial distribution of summer precipitation in Huludao area was of all -consistency .On 200 hPa geopotential height a-nomaly field of more precipitation year , Northeastern China had anticyclonic circulation anomalies , which caused larger west wind speed.On 500 hPa geopotential height anomaly field of more precipitation year , the meridional circulation existed in middle -high-latitude area;the influence of subtropical high was relatively strong , and its location was slightly northward .On 850 hPa wind a-nomaly field of more precipitation year , the southward wind in Eastern China was abnormally and relatively strong , which brought more vapor .关键词
葫芦岛/夏季/降水特征/大气环流异常Key words
Huludao/Summer/Precipitation characteristics/Atmospheric circulation anomalies分类
农业科技引用本文复制引用
孟振雄,唐帅..葫芦岛夏季降水特征和大气环流异常分析[J].江西农业学报,2014,(3):116-119,4.
