| DISTRIBUTION OF LOW FREQUENCY WAVES IN NORTH PACIFIC AND INTRASEASONAL ABNORMALITY OF THE WESTERN PACIFIC SUBTROPICAL HIGH |
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| 作者姓名： | 李兴亮 喻世华 |
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| 作者单位： | Meteorological Observatory of South China Sea Naval Fleet, Zhanjiang 524001;Air Force Institute of Meteorology, Nanjing, 211101 |
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| 摘 要： | By using ECMWF (2.5°×2.5°) grid data, analyzing correlation for the summer (June-August) of 1980 (the West Pacific Subtropical High (WPSH) anomalously more to the south), 1988 (the WPSH anomalously more to the north), 1981 (normal) in the west Pacific area, distribution characteristics of the low frequency waves are discussed. The relationship between distribution of the low frequency waves and intraseasonal abnormality of the west subtropical high is also analyzed. There is some discussions:(1)If the WPSH acts anomalously in summer, there is a distinct zonal wave series in the subtropical zone of the north Pacific.(2) One of the important characteristics of the WPSH abnormality is that there are low frequency geopotential high centres from east Pacific and northeast Asia, being combined in the west Pacific area.For different circulation, the combination areas are different, which define the WSPH anomalously more to the north or south.
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| 关 键 词： | low frequency wave subtropical high abnormality north Pacific |
| 收稿时间： | 1995/5/30 0:00:00 |
| 修稿时间： | 1995/11/20 0:00:00 |
DISTRIBUTION OF LOW FREQUENCY WAVES IN NORTH PACIFIC AND INTRASEASONAL ABNORMALITY OF THE WESTERN PACIFIC SUBTROPICAL HIGH |
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| Li Xingliang and Yu Shihua.DISTRIBUTION OF LOW FREQUENCY WAVES IN NORTH PACIFIC AND INTRASEASONAL ABNORMALITY OF THE WESTERN PACIFIC SUBTROPICAL HIGH[J].Journal of Tropical Meteorology,1996,2(2):171-180. |
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| Authors: | Li Xingliang and Yu Shihua |
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| Institution: | Meteorological Observatory of South China Sea Naval Fleet, Zhanjiang 524001;Air Force Institute of Meteorology, Nanjing, 211101 |
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| Abstract: | By using ECMWF (2.5°×2.5°) grid data, analyzing correlation for the summer (June-August) of 1980 (the West Pacific Subtropical High (WPSH) anomalously more to the south), 1988 (the WPSH anomalously more to the north), 1981 (normal) in the west Pacific area, distribution characteristics of the low frequency waves are discussed. The relationship between distribution of the low frequency waves and intraseasonal abnormality of the west subtropical high is also analyzed. There is some discussions:(1)If the WPSH acts anomalously in summer, there is a distinct zonal wave series in the subtropical zone of the north Pacific.(2) One of the important characteristics of the WPSH abnormality is that there are low frequency geopotential high centres from east Pacific and northeast Asia, being combined in the west Pacific area.For different circulation, the combination areas are different, which define the WSPH anomalously more to the north or south. |
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| Keywords: | low frequency wave subtropical high abnormality north Pacific |
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