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

这个更新建议的总体目标是描述和理解由于非迁移潮汐引起的中间层-热层-电离层变率。重点是热带对流造成的潮汐。这个问题很重要，因为它反映了太阳能量传回高层大气的过程，在高层大气中，低层大气的驱动会与来自高层的太阳能和磁场驱动展开竞争。具体目标是：(1)建立MLT/ e区域非迁移潮汐风的短期（日）、年际和太阳周期变化。在当前分析的上边界之上，对全球潮汐密度、温度和热层-电离层的风结构提供基于观测的估计。（三）量化非迁移潮汐对航空和热层能量收支的重要组成部分的影响。攻击的方法是基于项目早期阶段所取得的进展和开发的工具。来自CAWSES潮汐运动的卫星、地面和模型数据将协同应用于分析工作，以建立短期和热层-电离层潮汐变化。对TIMED/TIDI潮汐风的处理将继续研究更长的时间尺度。这些努力将由TIMED/SABER、TIMED/GUVI、ODIN/OSIRIS对成分和排放测量进行潮汐分析来补充。

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.