| 1891—1990年期间北半球大气环流和中国气候的变化 |
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| 引用本文： | 章基嘉,高学杰.1891—1990年期间北半球大气环流和中国气候的变化[J].应用气象学报,1994,5(1):1-10. |
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| 作者姓名： | 章基嘉 高学杰 |
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| 作者单位： | 1.(中国气象科学研究院，北京 100081) |
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| 摘 要： | 根据1891–1990年北半球大气环流型W、C、E年频数以及全国平均年温、北京和上海的年温的时间序列，计算分析了它们各自的主值函数、功率谱和凝聚谱，得到了环流和温度的百年长期趋势、周期谱图和它们之间的凝聚关系，并用距平累加曲线法，相邻两阶段的信噪比法，揭示了环流和温度在近百年变化过程中的转折和突变。最后，用Mann-Kendall法对它们作了检验。讨论了环流异常与气候异常的关联性，并给予一定的解释。
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| 关 键 词： | 环流和温度 长期趋势 周期振动 凝聚关系 转折和突变 |
The Variations of Circulation Pattern in the Northern Hemisphere and Climate Change in China During 1981—1990 |
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| Institution: | (Chinese Academy of Meteorological Sciences, Beijing 100081) |
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| Abstract: | The time series of annual frequency of the circulation patterns W, C, E in the Northern Hemisphere and annual mean temperature of Beijing (TB), Shanghai (TS) and the whole country (TC) in the period of 1981—1990 are expanded by a long-term tendency, a periodic function and a random function. The coherence between circulation and temperature are calculated and analyzed. The abrupt changes of circulation and temperature in the last 100 years are revealed by the methods of the accumulated anomalous curves, the signal/noise ratio as well as the Mann-Kendall test. The correlations between anomalous circulation and climate are discussed with some explanations. |
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| Keywords: | Circulation and temperature Long-term tendency Periodic oscillation Coherence Catastrophe |
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