Studies on the Effects of the Stratosphere on Climate Change and its Dynamical Role

平流层对气候变化的影响及其动力作用研究

• 批准号: 20244076
• 负责人: YODEN Shigeo
• 金额: $ 30.78万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20244076/
• 关键词: 気候変動; 成層圏; 対流圏; 子午面循環; 大気波動

Effects of the stratospheric change on the main dynamical processes of the general circulation of the atmosphere and their dynamical role were clarified with data analyses of global observations and numerical studies with a hierarchy of numerical models from a dynamical core to the JMA operational model of one-month ensemble numerical weather prediction. Some specific findings associated with a stratospheric sudden warming event are large-scale frontal structure at the edge of circumpolar vortex and systematic predictability variation of the annular mode before and after the event. A chemistry-climate model was also used in addition to the above data and models, and the dynamical influences of external forcings, such as the stratospheric cooling and variations of the solar activity, on the intra-seasonal and inter-annual variations of the atmosphere were elucidated.

通过对全球观测资料的分析和数值研究，阐明了平流层变化对大气环流主要动力过程的影响及其动力作用，数值研究采用了从动力核心到日本气象厅一个月集合数值天气预报业务模式的一系列数值模式。与平流层突然增暖事件相关的一些具体发现是绕极涡边缘的大尺度锋结构和事件前后环状模态的系统可预报性变化。在上述资料和模式的基础上，还利用了一个化学气候模式，阐明了平流层冷却和太阳活动变化等外部强迫对大气季节内和年际变化的动力学影响。

项目成果

Analysis of spatial structure of gravity waves using GPS occultation data

利用GPS掩星数据分析重力波的空间结构

• 发表时间: 2011
• 作者: Horinouchi;T.
• 通讯作者: T.

An update of observed stratospheric temperature trends

• DOI: 10.1029/2008jd010421
• 发表时间: 2009-01-23
• 期刊: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
• 影响因子: 4.4
• 作者: Randel, William J.;Shine, Keith P.;Yoden, Shigeo
• 通讯作者: Yoden, Shigeo

Moist Hadleycirculation : possible role ofwave-convection coupling inaqua-planet experiment

湿哈德利环流：波对流耦合在水行星实验中的可能作用

• DOI: 10.1175/jas-d-11-0149.1
• 发表时间: 2012
• 期刊: J. Atmos. Sci
• 作者: Horinouchi;T
• 通讯作者: T

Influence of the Planetary Wave Reflection from the Stratosphere on the Tropospheric Blocking

平流层行星波反射对对流层阻塞的影响

• 发表时间: 2012
• 作者: K.Kodera;H.Mukougawa;M.Mabuchi
• 通讯作者: M.Mabuchi

Numerical experiments on formation processes of thin moist layers in the tropical mid-troposphere over eastern Pacific

东太平洋热带对流层中层薄湿层形成过程的数值实验

• 发表时间: 2011
• 作者: Otsuka;S.;Yoden;S.;and Takeshita;M.
• 通讯作者: M.