Analysis of the forcing mechanism of the terdiurnal solar tide in the middle atmosphere

中层大气陆地太阳潮强迫机制分析

• 批准号: 229923092
• 负责人: Professor Dr. Christoph Jacobi
• 金额: --
• 依托单位: Institut für Meteorologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/229923092?language=en
• 关键词: Analysis; forcing; mechanism; terdiurnal; solar

A non-linear mechanistic circulation model of the middle atmosphere will be used to analyse the focing mechanisms of the terdiurnal tide in the middle atmosphere. the used model MUAM (Middle and Upper Atmosphere Model) includes a full radiation parameterization scheme, and is therefore capable to reproduce the terdiurnal as well as other solar tides. To analyse the forcing mechanisms, possible souces of terdiurnal tide forcing will be removed in the model runs. These mechanisms will be direct forcing through the 8-hour component of the diurnal solar focing, and nonlinear interaction of the diurnal and semidiurnal tide, represented by the advection terms in the momentum equations. Through comparison with reference runs we will be able to estimate the relative contribution of the differnt forcing terms to the full tidal forcing. The work will be completed by radar and satellite data analyses.

本文用一个中层大气非线性机械环流模式分析了中层大气三日潮的形成机制。所使用的模型MUAM（中层和高层大气模型）包括一个完整的辐射参数化方案，因此能够再现terdailyderday以及其他太阳潮汐。为了分析强迫机制，在模式运行中将去除可能的昼夜潮汐强迫源。这些机制将是直接强迫通过8小时的组件的周日太阳聚焦，和非线性的相互作用的周日和半日潮，代表的平流项的动量方程。通过与参考运行的比较，我们将能够估计不同强迫项对整个潮汐强迫的相对贡献。这项工作将通过雷达和卫星数据分析来完成。

项目成果

Nonlinear forcing mechanisms of the migrating terdiurnal solar tide and their impact on the zonal mean circulation

• DOI: 10.5194/angeo-37-943-2019
• 发表时间: 2019-10
• 期刊: Annales Geophysicae
• 影响因子: 1.9
• 作者: F. Lilienthal;C. Jacobi

Long-term variability of mid-latitude mesosphere-lower thermosphere winds over Collm (51°N, 13°E)

科尔姆（51°N，13°E）上空中纬度中间层-低热层风的长期变化

• DOI: 10.1016/j.jastp.2015.05.006
• 发表时间: 2015
• 期刊: Journal of Atmospheric and Solar-Terrestrial Physics
• 影响因子: 1.9
• 作者: Jacobi;F. Lilienthal;C. Geiÿler;A. Krug
• 通讯作者: A. Krug

Tidal wind shear observed by meteor radar and comparison with sporadic E occurrence rates based on GPS radio occultation observations

• DOI: 10.5194/ars-17-213-2019
• 发表时间: 2019-09
• 期刊: Advances in Radio Science
• 影响因子: 0.4
• 作者: C. Jacobi;C. Arras

Influence of the spatial distribution of gravity wave activity on the middle atmospheric dynamics

• DOI: 10.5194/acp-16-15755-2016
• 发表时间: 2016-12
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: P. Šácha;F. Lilienthal;C. Jacobi;P. Pišoft

Forcing mechanisms of the terdiurnal tide

• DOI: 10.5194/acp-18-15725-2018
• 发表时间: 2018-11
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: F. Lilienthal;C. Jacobi;Christoph Geißler