| 不同地转速度下的冬季大气环流及气候异常的数值模拟 |
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| 引用本文： | 游性恬,谷湘潜.不同地转速度下的冬季大气环流及气候异常的数值模拟[J].大气科学,1997,21(5):545-551. |
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| 作者姓名： | 游性恬 谷湘潜 |
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| 作者单位： | 1.中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室,北京 100080 |
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| 基金项目： | 本文得到国家自然科学基金的资助 |
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| 摘 要： | 利用IAP二层全球大气环流模式，进行改变地球自转速度下冬季大气环流及气候异常的数值模拟。其中试验1: 设25 h/d (350 d/a)；试验2:设23 h/d (381 d/a)；控制运行:24 h/d (365 d/a)。联系从古至今地球自转逐渐减慢的情况，主要讨论地转减慢对冬季大气环流和气候的影响。结果表明，地球自转速度减慢以后，能使西风急流加强，南极附近增温。
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| 关 键 词： | 地球自转速度 大气环流 数值模拟 |
A Numerical Simulation of the Atmospheric Circulation and Climate Anormaly with Different Earth Rotation Rates in Winter |
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| You Xingtian and Gu Xiangqian.A Numerical Simulation of the Atmospheric Circulation and Climate Anormaly with Different Earth Rotation Rates in Winter[J].Chinese Journal of Atmospheric Sciences,1997,21(5):545-551. |
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| Authors: | You Xingtian and Gu Xiangqian |
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| Abstract: | A numerical experiment is conducted by an IAP AGCM, to simulate the atmospheric circulation and climate anormaly with the different earth rotation rates (ERR) in winter This experiment induces a control run and two tests In the control run, a day is considered to be 24 hours (or a year has 365 days) In the first test, a day is supposed to be 25 hours (or one year has 350 days) And in the second test, a day is assumed to be 23 hours (or a year has 381 days) Considering that the ERR slows gradually from ancient to present, the slower ERR is also discussed in details The results show that the slower ERR induces can intensify the westerly jet in the Northern Hemisphere and leads to a warming in high latitudes of the Southern Hemisphere |
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| Keywords: | earth rotation rate atmospheric circulation numerical simulation |
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