| 区域气候模式对东亚冬季风多年平均特征的模拟 |
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| 引用本文： | 李巧萍,丁一汇.区域气候模式对东亚冬季风多年平均特征的模拟[J].应用气象学报,2005,16(Z1):30-40. |
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| 作者姓名： | 李巧萍 丁一汇 |
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| 作者单位： | 1. 中国科学院大气物理研究所,北京,100029;国家气候中心,中国气象局气候研究开放实验室,北京,100081
2. 国家气候中心,中国气象局气候研究开放实验室,北京,100081 |
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| 基金项目： | 本文得到国家"九五"重中之重项目"短期气候预测系统的总装与业务化试验研究"课题(96-908-06)之"短期气候预测综合动力模式系统业务化"专题(96-908-06-03)和国家自然科学基金资助项目(40231004)共同资助. |
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| 摘 要： | 利用改进的区域气候模式(RegCM-NCC)对东亚区域进行了连续5年(1998～2002年)的气候模拟,并对模拟的东亚冬季风情况进行了全面分析.结果表明该模式能够较好地模拟出东亚地区冬季平均环流特征,较真实反映出冬季低层大陆冷高压的平均位置与强度,也能够揭示出冬季风场变化的主要特征,如低层的冬季风气流及高层的西风急流;对冬季风强度及年际变化也有较好的反映,对冬季季风涌出现的频率、主要区域以及温度的演变等气候特征的模拟与实况一致.通过比较分析,对该模式在东亚冬季风等方面模拟性能有较全面的认识,便于模式的应用及进一步改进.
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| 关 键 词： | 区域气候模式 东亚冬季 气候模拟 |
| 修稿时间： | 2004年7月19日 |
MULTI-YEAR SIMULATIONS OF EAST ASIAN WINTER MONSOON BY USING REGIONAL CLIMATE MODEL |
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| Li Qiaoping,Ding Yihui.MULTI-YEAR SIMULATIONS OF EAST ASIAN WINTER MONSOON BY USING REGIONAL CLIMATE MODEL[J].Quarterly Journal of Applied Meteorology,2005,16(Z1):30-40. |
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| Authors: | Li Qiaoping Ding Yihui |
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| Affiliation: | Li Qiaoping 1)2) Ding Yihui 2) 1) |
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| Abstract: | By using the improved regional climate model (RegCM_-NCC), the East Asian climate during 1998-2002 is simulated. Systematic analysis to the winter monsoon shows that the model can well reproduce the winter mean circulation features, such as the location and intensity of land cold high, as well as seasonal variation characters of winter wind field including the lower northeast monsoonal flow and upper western jet. The intensity and annual variation of the winter monsoon are exactly presented in the model, with the occurrence frequency and region of cold surge and the temperature evolution are well corresponding to observations. The comparison analyses provide a general cognition to the model's capability to East Asian winter monsoon, which would be useful for improving the model. |
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| Keywords: | Regional climate model East Asian winter monsoon Numerical simulation |
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