| 戴维斯海峡海冰与华北降水的年际关系及其年代际变化 |
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| 引用本文： | 刘海文,郭品文,张娇. 戴维斯海峡海冰与华北降水的年际关系及其年代际变化[J]. 南京气象学院学报, 2004, 27(2): 253-257 |
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| 作者姓名： | 刘海文 郭品文 张娇 |
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| 作者单位： | 南京气象学院,大气科学系,江苏,南京,210044 |
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| 基金项目： | 江苏省自然科学基金资助项目(BK20011106)，教育部留学回国人员科研启动基金资助项目 |
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| 摘 要： | 利用北极海冰面积指数和中国160站降水资料，探讨了冬季戴维斯海峡海冰和华北7月降水年际变化的相关特征，并分析了二者年际关系的年代际变化。结果表明，冬季戴维斯海峡海冰与华北7月降水在年际时间尺度上呈反相关关系，1974年前后两者的年际关系由反相关较强转为变弱。冬季戴维斯海峡海冰与中国7月160站降水的年际相关分布在1974年前后由东部型转变为江淮型。
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| 关 键 词： | 海冰 华北降水 年际关系 年代际变化 |
| 文章编号： | 1000-2022(2004)02-0253-05 |
The Interannual Relationship between Davis Strait Sea-ice and Rainfall of North China and Its Decadal Variability |
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| LIU Hai-wen,GUO Pin-wen,ZHANG Jiao. The Interannual Relationship between Davis Strait Sea-ice and Rainfall of North China and Its Decadal Variability[J]. Journal of Nanjing Institute of Meteorology, 2004, 27(2): 253-257 |
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| Authors: | LIU Hai-wen GUO Pin-wen ZHANG Jiao |
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| Abstract: | The interannual correlation of the winter sea-ice of Davis Strait with July rainfall of North China and its decadal variability are analyzed in this paper by using the Arctic sea-ice area data and the monthly rainfall of 160 stations in China.Analysis results show that there exists a negative interannual correlation between winter sea-ice of Davis Strait and July rainfall at 160 stations in China,with a turning point from a strong negative correlation to a weak negative correlation at 1974.The interannual correlation pattern between winter sea-ice of Davis Strait and July rainfall of North China has changed from the East-pattern to the Jianghuai-pattern around 1974. |
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| Keywords: | sea-ice rainfall of North-China interannual relationship decadal variability |
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