| 北太平洋高纬地区准4年尺度西风异常对热带太平洋海温的影响 |
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| 引用本文： | 谭言科,何金海,胡邦辉.北太平洋高纬地区准4年尺度西风异常对热带太平洋海温的影响[J].南京气象学院学报,1999,22(2):204-210. |
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| 作者姓名： | 谭言科 何金海 胡邦辉 |
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| 作者单位： | 1. 空军气象学院,南京,211101
2. 南京气象学院大气科学系,南京,210044 |
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| 摘 要： | 利用１９７５ 年１月～１９８７年１２月ＮＭＣ的８５０ ｈＰａ风场资料进行诊断分析，发现在热带中东太平洋ＳＳＴＡ出现正异常前期， 北太平洋就已有异常西风存在。该地区的异常纬向风在准４年时间尺度上取先西南后东南的折形路径向南传播。而且，阿留申海的ＳＳＴＡ也沿该折形路径向南传播
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| 关 键 词： | 西风异常 折形路径 热带太平洋SSTA |
| 修稿时间： | 1998-10-09 |
EFFECT OF NORTHERN PACIFIC HIGH-LATITUDE WESTERLY ANOMALY ON TROPICAL PACIFIC SSTA ON QUASI-4-YEAR TIME SCALE |
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| Tan Yanke,He Jinhai,Hu Banghui.EFFECT OF NORTHERN PACIFIC HIGH-LATITUDE WESTERLY ANOMALY ON TROPICAL PACIFIC SSTA ON QUASI-4-YEAR TIME SCALE[J].Journal of Nanjing Institute of Meteorology,1999,22(2):204-210. |
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| Authors: | Tan Yanke He Jinhai Hu Banghui |
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| Abstract: | A diagnostic analysis has been conducted based on the January 1975-December 1987 NMC 850hPa wind field data. The results show that the northern Pacific high latitude anomalous westerly on the quasi 4 year time scale, which occurs ahead of the beginning of the positive tropical central/eastern Pacific SSTA, propagates southward along a zigzag path,i.e., first southwest then southeast and so does the Aleutian SSTA. |
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| Keywords: | westerly anomaly zigzag path tropical Pacific SSTA |
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