| 近40年东亚冬季风强度的多时间尺度变化特征及其与气候的关系 |
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| 引用本文： | 施能.近40年东亚冬季风强度的多时间尺度变化特征及其与气候的关系[J].应用气象学报,1996,7(2):175-182. |
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| 作者姓名： | 施能 |
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| 作者单位： | 1.南京气象学院 |
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| 摘 要： | 文章利用季风强度指数研究了近40年冬季1月份东亚季风强度趋势、年际、十年际变化特征及其与我国冬季天气气候的关系。结果指出，东亚冬季风的年际变化、年代际变化与我国冬季天气气候关系密切。弱冬季风时，我国天气气候是暖、湿；强冬季风时，则冷、干。但是，季风与我国气候在近40年中的趋势变化关系则不如其年际、十年际变化更密切。近40年来，我国冬季气温已明显升高，季风减弱，但不太显著。80年代中期开始，冬季风已明显减弱。此外，还指出，东亚强冬季风时，大气环流具有强WP型、弱EU遥相关型的特征
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| 关 键 词： | 东亚冬季风 气候变化 十年际变化 遥相关型 |
Features of the East Asian Winter Monsoon Intensity on Multiple Time Scale in Recent 40 Years and Their Relation to Climate |
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| Shi Neng.Features of the East Asian Winter Monsoon Intensity on Multiple Time Scale in Recent 40 Years and Their Relation to Climate[J].Quarterly Journal of Applied Meteorology,1996,7(2):175-182. |
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| Authors: | Shi Neng |
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| Institution: | 1.(Nanjing Institute of Meteorology, Nanjing 210044) |
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| Abstract: | Utilizing the East Asian monsoon intensity indexes the features of their trend, interannual and interdecadal changes of the monsoon in January during the period of 1950~1989 and their relation to the China’s winter weather-climate are studied. It is found that the interannual and interdecadal changes of the East Asian winter monsoon were closely related to the weather in China. It was cold/dry when the winter monsoon was strong, and warm/moist weather then the monsoon was weak. However, the relationship between the monsoon and China’s climate change trend was not as good as that of the interannual and interdecadal changes. During the past 40 years, the air temperature experienced a remarkable increase, while the monsoon underwent a pronounced reduction. Since the mid-1980s, however, the winter monsoon has become rather weakened. It is also found that when the East Asian winter monsoon was strong, the atmospheric circulation showed the strong WP pattern and the EU teleconnection pattern. |
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| Keywords: | East Asian winter monsoon Climate change Interdecadal change Teleconnection pattern |
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