Mathematics – Logic
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsa51a..01r&link_type=abstract
American Geophysical Union, Spring Meeting 2008, abstract #SA51A-01
Mathematics
Logic
0355 Thermosphere: Composition And Chemistry, 0358 Thermosphere: Energy Deposition (3369), 2407 Auroral Ionosphere (2704), 2427 Ionosphere/Atmosphere Interactions (0335), 2479 Solar Radiation And Cosmic Ray Effects
Scientific paper
As a society, we have known about the existence of the ionosphere in general terms for thousands of years through the displays of the aurora. We have known that currents are associated with the aurora for only a little more than a hundred years. In more recent times, we have learned about the overall characteristics of the ionosphere and thermosphere, such as the general temperature and density structure during non-disturbed time periods. We have a phenomenological understanding of how the magnetosphere, the sun, and the lower atmosphere influence the thermosphere and ionosphere environments. Finally, we have developed global-scale models to assist us in our ability to predict and better understand the complex upper atmosphere. While our understanding appears to be large, we have really only scratched the surface in our ability to describe even the first order effects of different energy inputs on the local and global ionosphere and thermosphere. This is clearly observed when model results are compared to data on anything more than orbit or daily averaged values. Further, as a community, we are beginning to understand that the upper atmosphere system is effected by energy inputs on many different scales, and that the global system must be examined in order to truly understand what is happening on a localized scale. The problem with this is that there aren't enough data sets to fully describe the system in a global context. This talk will describe some of the general outstanding scientific successes and challenges in the ionosphere thermosphere research. It will highlight some of the general major issues that need to be addressed so an understanding of the upper atmosphere system can move forward.
Clemmons James
Ridley Aaron J.
Spann James
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