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| 有关全球变暖对热带大气季节内振荡特征的影响及其数值模拟的研究 | |
| 引用本文： | 何金海,董敏,蒋国荣,宇婧婧.有关全球变暖对热带大气季节内振荡特征的影响及其数值模拟的研究[J].气象与减灾研究,2006,29(1):17-21. |
| 作者姓名： | 何金海 董敏 蒋国荣 宇婧婧 |
| 作者单位： | 1. 南京信息工程大学,大气科学系,江苏,南京,210044;中国气象局,广州热带海洋气象研究所,广东,广州,510080 2. 国家气候中心,北京,100081 3. 南京信息工程大学,大气科学系,江苏,南京,210044 |
| 基金项目： | 国家自然科学基金资助项目(90211011) |
| 摘 要： | 首先用资料诊断分析了全球变暖前后,热带大气低频振荡特征变化。研究发现,全球变暖前后,热带低频振荡的强度、分布、传播及周期等发生了一系列变化:ISO活跃区及强度范围均有不同程度的增大,气候变暖有缩小ISO强度季节差异趋势;气候变暖后,纬向东传波的大气季节内振荡能量增加,而西传波的能量相对减少;偏暖阶段,ISO振荡主周期相对分散,特别是较长周期的小波能量明显增大。然后利用动力学分析及数值模拟进一步探讨了热带低频振荡与海温的联系,对热带ISO的数值模拟进一步发现,大气模式与海洋模式耦合时,所模拟的热带季节内振荡较强;热带低频振荡的变化可能与全球变暖后海温场发生的变化有关。 |
| 关 键 词： | 全球变暖 热带大气 季节内振荡 影响 海温 |
| 文章编号： | 1007-9033（2006）01-0017-05 |
| 收稿时间： | 2006-01-16 |
| 修稿时间： | 2006年1月16日 |
Impacts Of Global Warming On The Intraseasonal Oscillation In The Tropical Atmosphere And ISO Simulation |
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| HE Jin-hai,DONG Min,JIANG Guo-rong,YU Jing-jing.Impacts Of Global Warming On The Intraseasonal Oscillation In The Tropical Atmosphere And ISO Simulation[J].Meteorology and Disaster Reduction Research,2006,29(1):17-21. | |
| Authors: | HE Jin-hai DONG Min JIANG Guo-rong YU Jing-jing |
| Abstract: | In this paper,the impacts of global warming on intraseasonal oscillation in the tropical atmosphere are studied by observational data analysis first.The main results show,when climate becomes warming,the main active region of ISO is almost the same,but domain of active region and intensity of ISO are increased with different degree in different seasons.The seasonal difference of ISO intensity has decreasing tendency with the global warming.And during warmer period,the eastward waves of ISO are enhanced and the westward waves are relatively weaken;the energy of longer period wave is becoming stronger,and the main period of ISO is decentralized.Then the relations between tropical ISO and SST are studied by means of dynamical studying and numerical modeling.The stimulations of tropical ISO show simulated ISO is most strong by using air-sea coupled model.The changes of tropical ISO characters may have relation with the change of SST due to global warming. |
| Keywords: | Global Warming tropical atmosphere intraseasonal oscillation impacts sea-surface temperature |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |