Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa34a..01g&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SA34A-01
Physics
[2427] Ionosphere / Ionosphere/Atmosphere Interactions, [3384] Atmospheric Processes / Acoustic-Gravity Waves, [3389] Atmospheric Processes / Tides And Planetary Waves
Scientific paper
The dynamic coupling of atmosphere-ionosphere system is a complex interdisciplinary problem. Current thinking suggests that the upward propagation of internal atmospheric waves (planetary waves, tides, gravity waves) from the lower atmosphere is an essential source of energy and momentum for the thermosphere and embedded ionosphere. Studies over the last decade presented fascinating experimental and modeling evidence of global coupling from the troposphere to mesosphere, thermosphere and ionosphere. They were enabled by unprecedented availability of satellite data, in particularly from TIMED, MLS, CHAMP, and GRACE, focused experimental campaigns from ground-based instruments, and major advances in global coupling models. This paper will summarize several developments over the past decade, including non-migrating structures in the ionosphere and thermosphere, advances in studies of gravity waves and planetary waves, and their implications for better understanding of ITM. The paper will also identify questions that need to be answered in the future, and outline promising topics of future development.
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