Spectral analysis of ionospheric electron density and mesospheric neutral wind diurnal nonmigrating tides observed by COSMIC and TIMED satellites

Details Spectral analysis of ionospheric electron density and mesospheric neutral wind diurnal nonmigrating tides observed by COSMIC and TIMED satellites Spectral analysis of ionospheric electron density and mesospheric neutral wind diurnal nonmigrating tides observed by COSMIC and TIMED satellites

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3614102w&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 14, CiteID L14102

Physics

3

Atmospheric Processes: Tides And Planetary Waves, Atmospheric Processes: Mesospheric Dynamics, Ionosphere: Ionospheric Dynamics, Ionosphere: Ionospheric Disturbances, Ionosphere: Equatorial Ionosphere

Scientific paper

We use two-dimensional spectral analysis method to extract diurnal eastward zonal wavenumber 3 (E3) and westward zonal wavenumber 2 (W2) nonmigrating tide in the mesospheric winds from TIMED TIDI instrument and ionosphere density from the COSMIC six satellite cluster GPS data to study seasonal and inter-annual variations. In the case of the diurnal E3 component our results show that the ionospheric electron density feature has the same inter-annual variation trend as the symmetric mode of the mesospheric wind E3 component. The mesospheric wind E3 antisymmetric mode has the opposite inter-annual trend and less influence on the ionosphere. The diurnal W2 component show less clear correlation between the mesosphere and the ionosphere. Quasi-Biennial Oscillation (QBO) influences on both the mesosphere and ionosphere are implied.

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