| 夏半年青藏高原及附近地区30—60天振荡的分布特征 |
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| 引用本文： | 孙照渤,李云康,章基嘉.夏半年青藏高原及附近地区30—60天振荡的分布特征[J].南京气象学院学报,1991(4). |
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| 作者姓名： | 孙照渤 李云康 章基嘉 |
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| 作者单位： | 南京气象学院
(孙照渤)，四川省气象局
(李云康)，国家气象局(章基嘉) |
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| 摘 要： | 本文用1980—1982年3个夏半年(5—9月)的ECMWF客观分析资料,对青藏高原及其附近500hPa位势高度场进行了最大熵谱分析和滤波分析。结果表明:青藏高原及其附近地区夏半年存在着30-60天振荡,高原东部为一相对的30-60天振荡中心。本文还讨论了振荡的年际变化特征。
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| 关 键 词： | 青藏高原 气象要素 位势场 振荡 |
DETECTION OF THE 30-60 DAY OSCILLATION OVER THE QINGHAI-XIZANG PLATEAU AND ITS SURROUNDING AREAS DURING SUMMER TIME |
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| Sun Zhaobo,Li Yunkang,Zhang Jijia Nanjing Institute of Meteorology Sichuan Provincial Meteorological Bureau State Meteorological Administration.DETECTION OF THE 30-60 DAY OSCILLATION OVER THE QINGHAI-XIZANG PLATEAU AND ITS SURROUNDING AREAS DURING SUMMER TIME[J].Journal of Nanjing Institute of Meteorology,1991(4). |
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| Authors: | Sun Zhaobo Li Yunkang Zhang Jijia Nanjing Institute of Meteorology Sichuan Provincial Meteorological Bureau State Meteorological Administration |
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| Institution: | Sun Zhaobo;Li Yunkang;Zhang Jijia Nanjing Institute of Meteorology Sichuan Provincial Meteorological Bureau State Meteorological Administration |
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| Abstract: | Results of the Maximum Entropy Spectrum analysis and thefiltering analysis are given by using the ECMWF analysis data of the500 hPa geopotential height over the Qinghai-Xizang Plateau and itssurrounding areas during the summer half year.It is shown that the30-60 day oscillations are significant over the Plateau and its vicinity.The center of the 30-60 oscillations is found in the eastern part of thePlateau. The annual variations are also discussed. |
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| Keywords: | the Qinghai-Xizang Plateau meteorological element geopotential field oscillation |
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