| 1980年夏季青藏高原及其附近地区大气中30—60天振荡的时空分布 |
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| 引用本文： | 李云康,孙照渤,章基嘉.1980年夏季青藏高原及其附近地区大气中30—60天振荡的时空分布[J].南京气象学院学报,1992(1). |
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| 作者姓名： | 李云康 孙照渤 章基嘉 |
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| 作者单位： | 四川省达县气象局
(李云康)，南京气象学院
(孙照渤)，国家气象局(章基嘉) |
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| 摘 要： | 本文用1980年5—9月ECMWF客观分析资料,对青藏高原上空30—60天振荡进行研究。结果表明,与高原附近30—60天振荡相联系的遥相关波列有两支,一支为高原-伊尔库茨克-欧洲-大西洋东部;另一支为青藏高原-伊尔库茨克-雅库茨克-堪察加半岛-阿留申群岛。30—60天振荡在高原北侧和南侧地区,对流层上层和下层表现出不同的垂直结构。时间变化主要表现为向西的能量频散。
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| 关 键 词： | 遥相关 振荡 时空分布 青藏高原 |
THE TIME-SPACE STRUCTURE OF 30-60 DAY OSCILLATION OVER THE QINGHAI-XIZANG PLATEAU AND ITS SURROUNDING AREAS DURING THE SUMMERTIME OF 1980 |
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| Li Yunkang,Sun Zhaobo,Zhang Jijia Weather Bureau of Daxian Prefecture,Sichuan Province Nanjing Institute of Meteorology State Meteorological Administration.THE TIME-SPACE STRUCTURE OF 30-60 DAY OSCILLATION OVER THE QINGHAI-XIZANG PLATEAU AND ITS SURROUNDING AREAS DURING THE SUMMERTIME OF 1980[J].Journal of Nanjing Institute of Meteorology,1992(1). |
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| Authors: | Li Yunkang Sun Zhaobo Zhang Jijia Weather Bureau of Daxian Prefecture Sichuan Province Nanjing Institute of Meteorology State Meteorological Administration |
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| Abstract: | Features of 30-60 day oscillation over the Qinghai-Xizang Plateau and itssurrounding areas are investigated by using the ECMWF objective analysis data duringMay-September 1980. It is shown that there are two branches of teleconnection wave-trains related to the 30-60 day oscillation over the plateau and its surrounding areas:one is the Qinghai-Xizang Plateau-Irkutsk-Europe-the eastern Atlantic branch andthe other is the Qinghai-Xizang Plateau-Irkutsk-Yakutsk-Kamthatka-Aleutian-branch. The 30-60 day oscillation is found on the north and south sides of the plateauand shows different vertical structures in the upper and lower troposphere. The changeof the wavetrains with time is characterized mainly by westward energy dispersion. |
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| Keywords: | teleconnection oscillation time--space structure the Qinghai--Xizeng Plateau |
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