| 江苏夏季降水特征及其与太平洋海温的关系 |
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| 引用本文： | 庄樱,孙照渤.江苏夏季降水特征及其与太平洋海温的关系[J].南京气象学院学报,2007,30(6):835-840. |
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| 作者姓名： | 庄樱 孙照渤 |
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| 作者单位： | 南京信息工程大学,江苏省气象灾害重点实验室,江苏,南京,210044 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 利用江苏省13个代表站41 a(1960-2000年)的夏季降水资料及 NCEP/NCAR月平均再分析资料,运用合成和相关分析方法考察了江苏夏季旱涝年环流特征以及夏季降水异常与太平洋海温的关系.结果表明:江苏夏季降水存在明显年际变化;江苏夏季涝(旱)年500 hPa东亚及西太平洋地区从低纬到中高纬呈"正负正"("负正负")的高度距平分布;江苏夏季降水与东亚夏季风指数反相关;江苏夏季降水的偏多(少)通常与前冬北太平洋海温偏暖(冷)有关.春季赤道东太平洋海温偏暖(冷),夏季降水偏多(少).
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| 关 键 词： | 江苏 降水 环流特征 SSTA 江苏 降水特征 东太平洋海温 关系 SSTA Pacific Correlations Jiangsu Province Summer Precipitation 降水偏多 赤道 春季 北太平洋 反相关 夏季风指数 分布 高度距平 中高纬 低纬 西太平洋地区 |
| 文章编号： | 1000-2022(2007)06-0835-06 |
| 修稿时间： | 2006年10月26 |
Characters of Summer Precipitation in Jiangsu Province and Its Correlations with Pacific SSTA |
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| ZHUANG Ying,SUN Zhao-bo.Characters of Summer Precipitation in Jiangsu Province and Its Correlations with Pacific SSTA[J].Journal of Nanjing Institute of Meteorology,2007,30(6):835-840. |
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| Authors: | ZHUANG Ying SUN Zhao-bo |
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| Abstract: | With the summer rainfall data from 13 stations in Jiangsu from 1960 to 2000 and the NCEP/NCAR reanalysis monthly data,characters of summer precipitation in Jiangsu and its relations with Pacific SSTA(sea surface temperature anomaly) are investigated.Conclusions are as follows:obvious interannunal variations can be seen in summer precipitation,and the interannual precipitation change is positive.During flood(drought) years there was " - "("- -")anomaly pattern at 500 hPa height field from low to high latitudes over East Asia.Correlation between summer precipitation and the index of East Asia monsoon is negative.Positive correlation was found between the north Pacific SSTA in the preceeded winter and the summer precipitation in Jiangsu,also between the eastern equatoral Pacific SSTA in the spring and the summer precipitation. |
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| Keywords: | Jiangsu precipitation circulation characters SSTA |
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