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Spectral analysis of ionospheric electron density and mesospheric neutral wind diurnal nonmigrating tides observed by COSMIC and TIMED satellites
Author(s) -
Wu Q.,
Solomon S. C.,
Kuo Y.H.,
Killeen T. L.,
Xu Jiyao
Publication year - 2009
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2009gl038933
Subject(s) - ionosphere , mesosphere , atmospheric sciences , atmospheric tide , wavenumber , cosmic cancer database , thermosphere , environmental science , physics , stratosphere , geophysics , astronomy , optics
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.