Investigation of numerical methods for prediction of the ionospheric disturbances with observations and numerical simulations

通过观测和数值模拟研究预测电离层扰动的数值方法

• 批准号: 23340144
• 负责人: FUJIWARA Hitoshi
• 金额: $ 12.9万
• 依托单位: Seikei University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23340144/
• 关键词: 極域電離圏; 熱圏; EISCATレーダー; 太陽風; オーロラ; ナトリウムライダー; 大気波動; シミュレーション; CME; Naライダー

We have studied auroral energy inputs and atmopheric waves, which are originated in the lower atmosphere, in the polar upper atmosphere. The resultant ionospheric and thermospheric variations have been also investigated both from radar and lidar observations and numerical simulations. From the radar and lidar observations, we have clarified some characteristics of the ionospheric and thermospheric variations in the periods from the solar minimum to maximum. The numerical simulations have shown enhancements of the thermospheric wind and temperature depending on the polar cap/auroral oval size. In addition, some numerical simulations were performed to reproduce the ionospheric and thermospheric variations due to propagation of the atmospheric waves from the lower atmosphere.

我们研究了极地高层大气中起源于低层大气的极光能量输入和大气波。由此产生的电离层和热层的变化也已经从雷达和激光雷达观测和数值模拟研究。从雷达和激光雷达 通过对观测资料的分析，阐明了从太阳活动极小期到极大期电离层和热层变化的一些特征。数值模拟表明，热层风和温度的增强取决于极冠/极光椭圆的大小。此外，还进行了一些数值模拟，以再现电离层和热层的变化，由于从低层大气传播的大气波。

项目成果

トロムソ上空で地磁気擾乱時に観測されたスポラディックナトリウム層内外の大気温度変動

特罗姆瑟地磁扰动期间观察到的零星钠层内外的大气温度波动

• 发表时间: 2013
• 作者: 高橋透;野澤悟徳;津田卓雄;大山伸一郎;藤原均;堤雅雅基;川原琢也;斎藤徳人;和田智之;川端哲也;松浦延夫
• 通讯作者: 松浦延夫

九州大学大気大循環モデルを用いた北極気候変動研究

利用九州大学大气环流模型研究北极气候变化

• 发表时间: 2012
• 作者: 土屋正史;ほか;三好勉信
• 通讯作者: 三好勉信

Response of migrating tides to the stratospheric sudden warming in 2009 and their effects on the ionosphere studied by a whole atmosphere-ionosphere model GAIA with COSMIC and TIMED/SABER observations

• DOI: 10.1029/2012ja017650
• 发表时间: 2012-10-24
• 期刊: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
• 影响因子: 2.8
• 作者: Jin, H.;Miyoshi, Y.;Shinagawa, H.
• 通讯作者: Shinagawa, H.

The neutral dynamics during the 2009 sudden stratosphere warming simulated by different whole atmosphere models

• DOI: 10.1002/2013ja019421
• 发表时间: 2014-02
• 期刊: Journal of Geophysical Research: Space Physics
• 作者: N. Pedatella;T. Fuller‐Rowell;H. Wang;H. Jin;Y. Miyoshi;H. Fujiwara;H. Shinagawa;H. Liu;F. Sassi;H. Schmidt;V. Matthias;L. Goncharenko

Modeling of atmosphere-ionosphere response to extreme disturbances in space and the lower atmosphere

大气-电离层对空间和低层大气极端扰动响应的建模

• 发表时间: 2013
• 作者: Shinagawa;H.;H. Jin;Y. Miyoshi;and H. Fujiwara
• 通讯作者: and H. Fujiwara