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| 西太平洋副高强度变化与中国东部四季降水的关系 | |
| 引用本文： | 程肖侠,石正国,李万莉.西太平洋副高强度变化与中国东部四季降水的关系[J].安徽农业科学,2010,38(15):7976-7979,8068. |
| 作者姓名： | 程肖侠 石正国 李万莉 |
| 作者单位： | 1. 陕西省气候中心,陕西西安,710015;中国科学院地球环境研究所,陕西西安,710075 2. 中国科学院地球环境研究所,陕西西安,710075 3. 中国科学院寒区旱区环境与工程研究所,甘肃兰州,730000 |
| 基金项目： | 公益性行业科研专项基金资助项目 |
| 摘 要： | 利用1960～2007年中国气象局整编全国160个气象站月平均降水资料、NCEP/NCAR（2.5°×2.5°）再分析月平均资料、国家气候中心提供的西太平洋副高强度指数资料,分析了近几十年四季西太平洋副热带高压强度与我国东部同期降水量之间的相关关系以及各季西太平洋副高强度影响同期降水的大气环流背景。结果表明,近50年副高强度显著增强,尤其在春、秋、冬三季;四季副高强度变化均与我国东部同期降水变化关系密切,是影响东部同期降水的重要因子之一,其中冬季副高强度指数与降水关系相关性最高。 |
| 关 键 词： | 东部降水 副高强度 季节变化 大气环流 |
Relationship between Western Pacific Subtropical High and Precipitation in Four Seasons of Eastern China |
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| CHENG Xiao-xia et al.Relationship between Western Pacific Subtropical High and Precipitation in Four Seasons of Eastern China[J].Journal of Anhui Agricultural Sciences,2010,38(15):7976-7979,8068. | |
| Authors: | CHENG Xiao-xia |
| Institution: | CHENG Xiao-xia et al(Shaanxi Climate Center,Xi'an,Shaanxi 710015) |
| Abstract: | By using monthly averaged precipitation data during 1960 to 2007,NCEP/NCAR(2.5°×2.5°)reanalysis data and Western Pacific subtropical high intensity index,the seasonal variation of subtropical high and precipitation in Eastern China during the past decades were discussed.The relationship between them was also discussed by correlation and composite analysis.The results showed that the intensity of subtropical high,which has significantly strengthened in the recent 50 years,especially in spring,autumn and winter,has notable impact on the simultaneous rainfall in the eastern region of China for all seasons,especially in winter. |
| Keywords: | Precipitation in eastern China Intensity of subtropical high Seasonal variation Atmospheric circulation |
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