|
|||||
|
|
| 大气季节内振荡对印度洋—西太平洋地区热带低压/气旋生成的影响 | |
| 引用本文： | 祝从文,Tetsuo Nakazaw,李建平.大气季节内振荡对印度洋—西太平洋地区热带低压/气旋生成的影响[J].气象学报,2004,62(1):42-50. |
| 作者姓名： | 祝从文 Tetsuo Nakazaw 李建平 |
| 作者单位： | 1. 中国气象科学研究院,北京,100081,中国科学院大气物理研究所,LASG,北京,100029 2. 日本气象研究所,Tsukuba 305-0051 3. 中国科学院大气物理研究所LASG,北京,100029 |
| 基金项目： | 国家自然科学基金 ( 40 3750 1 4)，国家教委海外归国留学人员启动基金，中国科学院大气物理研究所LASG开放课题 |
| 摘 要： | 文中利用EOF分析大气季节内振荡 (MJO)的时空变化的方法 ,研究了 1996年 9月～ 1997年 6月间的MJO活动对生成在印度洋—西太平洋海域的热带低压 /气旋的影响。结果发现 ,除西北太平洋之外 ,发生在其他区域的热带低压 /气旋有半数以上生成在向东移动的MJO的湿位相中。伴随MJO的向东传播 ,热带低压 /气旋平均生成位置也随之向东移动 ,而生成在西北太平洋的热带低压 /气旋分别受到向东和向西传播的MJO影响 |
| 关 键 词： | 大气季节内振荡(MJO) EOF 热带低压/气旋生成 |
| 收稿时间： | 3/3/2003 12:00:00 AM |
| 修稿时间： | 2003年3月3日 |
MODULATION OF TROPICAL DEPRESSION/CYCLONE OVER THE INDIAN-WES TERN PACIFIC OCEANS BY MADDEN-JULIAN OSCILLATION |
|
| Zhu Congwen,Tetsuo Nakazawa and Li Jianping.MODULATION OF TROPICAL DEPRESSION/CYCLONE OVER THE INDIAN-WES TERN PACIFIC OCEANS BY MADDEN-JULIAN OSCILLATION[J].Acta Meteorologica Sinica,2004,62(1):42-50. | |
| Authors: | Zhu Congwen Tetsuo Nakazawa and Li Jianping |
| Institution: | Chinese Academy of Meteorological Sciences, Beijing 100081;LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;Meteorological Research Institute, Tsukuba, Japan 305-0051;Chinese Academy of Meteorological Sciences, Beijing 100081 |
| Abstract: | The Madden-Julian Oscillation(MJO) is a dominant mode ofintraseasonal variability in the tropical atmosphere;it is characterized by an eastward propagating tropical convective anomalies and associated with circulation anomalies with a time period between 30 to 60 days.Since Madden and Julian firstly observed the MJO (Madden and Julian,1971),it has been extensively studied in the past decades.Studies suggested that the MJO has a baroclinic mixed Kelvin and Rossby wave structure in the Indian and the western Pacific Oceans,where the equatorial wave is strongly coupled to convection with eastward propag ation in convection atroughly 5 m/s. Kelvin waves propagate eastward out of the convective regions is at phase speeds of 10~12 m/s(Hendon and Salby,1994),and is generally manifested as an east ward propagating,equatorialy-trapped,wave number one,baroclinic oscillation in the tropical wind field (Madden and Julian,1994). |
| Keywords: | Madden Julian Oscillation (MJO) Tropical depress ion/cyclone formation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《气象学报》浏览原始摘要信息 | |
| 点击此处可从《气象学报》下载免费的PDF全文 | |