Vertical Coupling and Variability in the Tropical Atmosphere/Ionosphere System


Book Description

The main objective of this research was to understand the processes that dynamically couple the troposphere at equatorial tropical latitudes with the overlying thermosphere-ionosphere. and identify those aspects of ionospheric variability which may be directly attributable to these processes. Using a combination of data analyses and numerical simulations, a new understanding of the excitation mechanisms, propagation characteristics, and lower thermosphere perturbations relating to tropospherically-excited Kelvin waves and nonmigrating tides has been developed. In addition. an analyses of ionospheric data was completed that provides an estimate of the "meteorological" contributions to ionospheric space weather.




3rd IAGA/ICMA Workshop on Vertical Coupling in the Atmosphere/Ionosphere System/ Abstract


Book Description

The Final Proceedings for 3rd IAGA/ICMA Workshop on Vertical Coupling in the Atmosphere/Ionosphere 18 September 2006 - 22 September 2006. The 3rd IAGA/ICMA Workshop will focus primarily on those forcing mechanisms that originate in the lower atmosphere on their transmission into the atmosphere-ionosphere system and the ways in which these are influenced by changing solar geomagnetic and anthropogenic drivers. The workshop will address recent studies on atmospheric coupling with special emphasis on the following topics: (i) coupling by mean circulation atmospheric tides and planetary and gravity waves; (ii) coupling by transport of atmospheric constituents and feedback of chemistry on dynamics; (iii) electrodynamic coupling and atmospheric electricity; (iv) modelling utilized for understanding the coupling processes. The workshop aims to stimulate the integration of observations and models to provide physical explanations for and new insights into the range of phenomena that result from coupling and feedbacks in the atmosphere-ionosphere system. The symposium will provide the next opportunity for the international research community to review the progress made so far and suggest some future directions in the investigation of all significant couplings (dynamic and electrodynamic radiative transport and chemistry of atmospheric constituents) trigger mechanisms and feedback processes.