| EFFECTS OF THE ATMOSPHERIC COLD SOURCE OVER THE TIBETAN PLATEAU ON THE QUASI 4-YEAR OSCILLATION OF OCEAN-ATMOSPHERIC-LAND INTERACTION |
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| 作者姓名： | 张博 陈隆勋 周秀骥 赵 滨 |
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| 作者单位： | Chinese Academy of Meteorological Sciences |
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| 基金项目： | Natural Science Foundation of China (90711003, 40633018) |
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| 摘 要： | Using correlation analyses, composite analyses, and singular value decomposition, the relationship between the atmospheric cold source over the eastern Tibetan Plateau and atmospheric/ocean circulation is discussed. In winter, the anomaly of the strong (weak) atmospheric cold source over the eastern plateau causes low-level anomalous north (south) winds to appear in eastern China and low-level anomaly zonal west (east) winds to prevail in the equatorial Pacific from spring to autumn. This contributes to the anomalous warm (cold) sea surface temperature the following autumn and winter. In addition, the anomalous variation of sea surface temperature over the equatorial middle and eastern Pacific in winter can influence the snow depth and intensity of the cold source over the plateau in the following winter due to variation of the summer west Pacific subtropical high.
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| 关 键 词： | 青藏高原东部 海洋环流 气相互作用 冷源 大气 西太平洋副热带高压 土地 振荡 |
EFFECTS OF THE ATMOSPHERIC COLD SOURCE OVER THE TIBETAN PLATEAU ON THE QUASI 4-YEAR OSCILLATION OF OCEAN-ATMOSPHERIC-LAND INTERACTION |
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| ZHANG Bo,CHEN Long-xun,ZHOU Xiu-ji and ZHAO Bin.EFFECTS OF THE ATMOSPHERIC COLD SOURCE OVER THE TIBETAN PLATEAU ON THE QUASI 4-YEAR OSCILLATION OF OCEAN-ATMOSPHERIC-LAND INTERACTION[J].Journal of Tropical Meteorology,2009,15(1):20-27. |
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| Authors: | ZHANG Bo CHEN Long-xun ZHOU Xiu-ji and ZHAO Bin |
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| Institution: | 1. Chinese Academy of Meteorological Sciences,Beijing 100081 China
2. National Meteorological Center,Beijing 100081 China |
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| Abstract: | Using correlation analyses, composite analyses, and singular value decomposition, the relationship between the atmospheric cold source over the eastern Tibetan Plateau and atmospheric/ocean circulation is discussed. In winter, the anomaly of the strong (weak) atmospheric cold source over the eastern plateau causes low-level anomalous north (south) winds to appear in eastern China and low-level anomaly zonal west (east) winds to prevail in the equatorial Pacific from spring to autumn. This contributes to the anomalous warm (cold) sea surface temperature the following autumn and winter. In addition, the anomalous variation of sea surface temperature over the equatorial middle and eastern Pacific in winter can influence the snow depth and intensity of the cold source over the plateau in the following winter due to variation of the summer west Pacific subtropical high. |
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| Keywords: | climatology atmospheric cold source diagnostic analysis Tibetan Plateau |
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