Nonmigrating tides in the mesosphere and lower thermosphere: variability and aeronomic implications- Phase III

中层和低层热层的非迁移潮汐：变化和航空影响 - 第三阶段

• 批准号: 5454631
• 负责人: Professor Dr. Ralf Koppmann, since 3/2010
• 金额: --
• 依托单位: Arbeitsgruppe Atmosphärenphysik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2005
• 资助国家: 德国
• 起止时间: 2004-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5454631?language=en
• 关键词: Nonmigrating; tides; mesosphere; lower; thermosphere

The overall objective of this renewal proposal is to delineate and understand mesosphere-thermosphere-ionosphere variability due to nonmigrating tides. Emphasis is on tides forced by tropical convection. The problem is important because it reflects the transport of solar energy back into the upper atmosphere where the lower atmospheric driving then competes with solar and magnetic drivers from above. Specific goals are: (i) Establish the short-term (days), interannual, and solar cycle variability of nonmigrating tidal winds in the MLT/E-region. (ii) Provide observation-based estimates of the global tidal density, temperature and wind structures in the thermosphere-ionosphere, above the upper boundary of current analyses. (iii) Quantify the impact of nonmigrating tides on constituents important to the aeronomy and on the thermospheric energy budget. The method of attack is based on the progress made and the tools developed during earlier phases of the project. Satellite, ground-based, and model data from the CAWSES Tidal Campaigns will be synergistically employed in an analysis effort to establish short-term and thermosphere-ionosphere tidal variability. Processing of TIMED/TIDI tidal winds will continue to investigate longer time-scales. These efforts will be complemented by a tidal analysis of constituent and emission measurements from TIMED/SABER, TIMED/GUVI, ODIN/OSIRIS.

这一更新建议的总体目标是描绘和了解由于非迁移潮汐引起的中间层-热层-电离层的变化。重点是热带对流引起的潮汐。这个问题很重要，因为它反映了太阳能返回到高层大气的传输，在那里低层大气的驱动力与来自上方的太阳能和磁驱动力竞争。具体目标是：（一）建立短期（天），年际和太阳周期的变化，在MLT/E区的非迁移潮汐风。(ii)提供基于观测的关于目前分析上限以上的热层-电离层中全球潮汐密度、温度和风结构的估计。(iii)量化非迁移潮汐对高层大气和热层能量收支重要成分的影响。攻击方法基于项目早期阶段的进展和开发的工具。CAWSES潮汐活动的卫星、地基和模型数据将协同用于建立短期和热层-电离层潮汐变化的分析工作。TIMED/TIDI潮汐风的处理将继续调查更长的时间尺度。这些努力将得到对TIMED/SABER、TIMED/GUVI、ODIN/OSIRIS的成分和排放测量的潮汐分析的补充。

项目成果

Comparison of diurnal tide in models and ground-based observations during the 2005 equinox CAWSES tidal campaign

• DOI: 10.1016/j.jastp.2010.12.010
• 发表时间: 2012-04
• 期刊: Journal of Atmospheric and Solar-Terrestrial Physics
• 影响因子: 1.9
• 作者: L. Chang;W. Ward;S. Palo;Jian Du;D. Y. Wang;Han L. Liu;M. Hagan;Y. Portnyagin;J. Oberheide;L. Goncharenko;Takuji Nakamura;P. Hoffmann;W. Singer;P. Batista;B. Clemesha;A. Manson;D. Riggin;C. She;T. Tsuda;T. Yuan