Abstract
Ozone profile data have been retrieved from the Optical Spectrograph and InfraRed Imager System (OSIRIS) instrument onboard the Odin Satellite, which was launched on 20 February 2001. Considering the irregular sampling of the OSIRIS, a least-squares fit method is employed to provide the wavenumber and frequency spectra of the waves affecting the OSIRIS ozone profile distributions. Meanwhile, criteria are developed and applied for reducing spectral biases. Then spectral analysis of the global OSIRIS ozone profiles data is perfomred at altitudes of 38.5 km and 40.5 km within two latitude bins 35˚–45˚N and 45˚–55˚N during days 75–105 of the year 2002. Specifically, a westward-propagating 10-day planetary wave is detected and validated by medium frequency (MF) Radar (MFR) at Platteville (40˚N, 105˚W) and Saskatoon (52˚N, 107˚W), and UKMO global stratospheric data (UK Meteorological Office assimilated model). The spatial and temporal distributions of the global OSIRIS ozone profile data are shown to allow identification of major planetary wave features in the middle atmosphere.
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