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| 东亚夏季风环流的动力统计诊断 | |
| 引用本文： | 曹士民,江河文,员影,迟春艳,张东凌.东亚夏季风环流的动力统计诊断[J].海洋预报,2006,23(4):65-75. |
| 作者姓名： | 曹士民 江河文 员影 迟春艳 张东凌 |
| 作者单位： | 1. 南京大学大气科学系,南京,210093;辽宁省盘锦市气象局,盘锦,124010 2. 辽宁省盘锦市气象局,盘锦,124010 3. 中科院大气物理所,北京,100080 |
| 基金项目： | 国家自然科学基金重点项目40233027资助 |
| 摘 要： | 本文对东亚夏季风环流作了动力统计诊断,其方法是将高、低层的偏差风场看作一个整体进行复EOF分析。诊断结果表明:偏差风场的第一模态直接与东亚夏季风环流有关,可称为季风模态;第二模态则与PJ波列关系密切,可称为PJ模态;季风模态存在两个平衡态,东亚夏季风也有两个平衡态;季风模态存在强弱的年际变化,其与东亚夏季风强弱的年际变化和菲律宾附近对流的年际变化均具有很好的对应关系;东亚夏季风和季风模态还存在明显的年代际变化。 |
| 关 键 词： | 东亚夏季风环流 动力统计诊断 复EOF分析 |
| 文章编号： | 1003-0239(2006)4-0065-11 |
| 收稿时间： | 2006-02-20 |
| 修稿时间： | 2006-10-30 |
The dynamic-statistical diagnostic for circulation of the East Asian Summer Monsoon |
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| CAO Shi-min,YUN Ying,JIANG He-wen,CHI Chun-yan,ZHANG Dong-ling.The dynamic-statistical diagnostic for circulation of the East Asian Summer Monsoon[J].Marine Forecasts,2006,23(4):65-75. | |
| Authors: | CAO Shi-min YUN Ying JIANG He-wen CHI Chun-yan ZHANG Dong-ling |
| Abstract: | The East Asian summer monsoon circulation has been studied in this paper by dynamic-statistic diagnosis, which is analyzed by the method of CEOF regarding departure wind field in different levels as a whole. The results indicate that the first mode of departure wind field called monsoon mode relates directly with summer monsoon circulation of East Asia and it exists close relationship between PJ wave train and the second mode which can be called PJ mode. There are two equilibrium states of the monsoon mode the same as summer monsoon of East Asia. The intensity of monsoon mode have interannual variety which is prime corresponding connections with both that of summer monsoon of East Asia and the convection near Philippine. The summer monsoon of East Asia and monsoon mode also has obvious interdecadal changes. |
| Keywords: | summer monsoon circulation of East Asia dynamic-statistic diagnosis the method of CEOF |
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