| 2008年广东强龙舟水与准10天振荡 |
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| 引用本文： | 谷德军,纪忠萍.2008年广东强龙舟水与准10天振荡[J].热带气象学报,2011,27(1):11-21. |
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| 作者姓名： | 谷德军 纪忠萍 |
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| 作者单位： | 1. 中国气象局广州热带海洋气象研究所/中国气象局热带季风重点实验室,广东,广州,510080
2. 广州中心气象台,广东,广州,510080;中国气象科学研究院灾害天气国家重点实验室,北京,100081 |
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| 基金项目： | 中国气象局气象新技术推广预报员专项，广东省科技厅项目，广东省气象局项目，公益性行业(气象)专项 |
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| 摘 要： | 采用小波分析、相关分析、Lanczos时间滤波器等方法分析了2008年广东强龙舟水与大气低频振荡的关系.结果表明,强龙舟水期间广东逐日降水存在显著的准7～12天周期振荡即准10天振荡,广东上空的逐日500 hPa高度场存在显著的8～13天周期振荡、南海北部平均的逐日850 hPa纬向风场存在显著的准12天周期振荡.广东...
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| 关 键 词： | 龙舟水 高空槽 南海北部季风 低频振荡 |
THE STRONG DRAGON-BOAT PRECIPITATION OF GUANGDONG IN 2008 AND QUASI-10-DAY OSCILLATION |
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| GU De-jun,JI Zhong-ping.THE STRONG DRAGON-BOAT PRECIPITATION OF GUANGDONG IN 2008 AND QUASI-10-DAY OSCILLATION[J].Journal of Tropical Meteorology,2011,27(1):11-21. |
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| Authors: | GU De-jun JI Zhong-ping |
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| Institution: | GU De-jun1,JI Zhong-ping2,3(1.Gangzhou Institute of Tropical and Marine Meteorology/Key Open Laboratory for Tropical Monsoon,China Meteorological Administration,Guangzhou 510080,China,2.Guangzhou Central Weather Observatory,3.State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081,China) |
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| Abstract: | Guangdong suffered the most serious precipitation in the dragon-boat festival of 2008 since 1951.The relationship between a strong dragon-boat precipitation in 2008 and atmospheric low-frequency oscillation was analyzed with the methods of wavelet analysis,correlation and Lanczos filter.Results showed that the daily rainfall exhibits a significant 7 to 12-day quasi-periodic oscillation(namely quasi-10-day oscillation) during the strong dragon-boat precipitation,the daily 500 hPa height over Guangdong exhibi... |
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| Keywords: | dragon-boat precipitation upper-level trough at 500 hPa monsoon over the north of South China Sea low-frequency oscillation |
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