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dc.contributor.authorChane-Ming, Fabriceen_US
dc.contributor.authorGuest, Fionaen_US
dc.contributor.authorKaroly, David J.en_US
dc.date.accessioned2014-05-22T07:00:34Z
dc.date.available2014-05-22T07:00:34Z
dc.date.issued2003en_US
dc.identifier.citationChane-Ming, F., Guest, F., & Karoly, D. J. (2003). Gravity waves observed in temperature, wind and ozone data over Macquarie Island. Australian Meteorological Magazine 52(1), 11-21.en_US
dc.identifier.issn0004-9743en_US
dc.identifier.urihttp://hdl.handle.net/11343/32767
dc.description© 2003 Australian Meteorological and Oceanographic Societyen_US
dc.description.abstractCharacteristics of inertia-gravity waves are analysed in high-resolution vertical profiles of temperature, winds and ozone collected at Macquarie Island (54°S, 159°E) during the Airborne Southern Hemisphere Ozone Experiment/Measurements for Assessing the Effects of Stratospheric Aircraft (ASHOE/MAESA) observation programme in 1994. Two particular techniques are outlined to identify gravity-wave modes. The first is based on the continuous wavelet transform and seeks altitudes where the atmospheric fluctuations satisfy the gravity-wave polarisation relations in the temperature and wind soundings. The second analyses the phase and amplitude relationship of small-scale wavelike signatures seen in temperature and ozone profiles. The wavelet method identified gravity-wave modes with vertical wavelengths of 1-10 km, horizontal wavelengths of 50-1000 km and intrinsic frequencies of 1-2 f. Both methods reveal the presence of dominant modes with vertical wavelength <4 km in the upper troposphere and lower stratosphere over Macquarie Island. The energy activity of observed modes agrees well with the seasonal cycle of the upper level jet at 10 km height. These techniques together with classical spectral methods are applied to the case study of 25 October 1994 for which three quasi-monochromatic coherent modes with upwardly propagating wave energy are detected in the lower stratosphere.en_US
dc.languageengen_US
dc.publisherAustralian Meteorological and Oceanographic Societyen_US
dc.subjectgravity wavesen_US
dc.subjectMacquarie Islanden_US
dc.titleGravity waves observed in temperature, wind and ozone data over Macquarie Islanden_US
dc.typeJournal Articleen_US
melbourne.peerreviewPeer Revieweden_US
melbourne.affiliationThe University of Melbourneen_US
melbourne.affiliation.departmentScience - Earth Sciencesen_US
melbourne.publication.statusPublisheden_US
melbourne.source.titleAustralian Meteorological Magazineen_US
melbourne.source.volume52en_US
melbourne.source.issue1en_US
melbourne.source.pages11-21en_US
melbourne.elementsidNA
melbourne.contributor.authorKaroly, David
melbourne.accessrightsOpen Access


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