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dc.contributor.authorSIMMONDS, IANen_US
dc.contributor.authorLIM, EUN-PAen_US
dc.date.accessioned2014-05-22T06:58:20Z
dc.date.available2014-05-22T06:58:20Z
dc.date.issued2009en_US
dc.identifier.citationSimmonds, I. & Lim, E. (2009). Biases in the calculation of Southern Hemisphere mean baroclinic eddy growth rate. Geophysical Research Letters, 36, doi:10.1029/2008GL036320.en_US
dc.identifier.issn1944–8007en_US
dc.identifier.urihttp://hdl.handle.net/11343/32754
dc.description© 2009 American Geophysical Unionen_US
dc.description.abstractThe maximum Eady growth rate measure of baroclinic instability is very commonly used in the literature. Its average is usually calculated directly from the time-mean flow. It is suggested here that this approach is not entirely suitable, but rather one should obtain the Eady growth rates at all relevant synoptic times and average these. It is found at the 850 hPa level in the Southern Hemisphere that the time-mean of the instantaneous rates exceed those calculated from the time-mean field over much of the mid and high latitudes, and the difference is even more marked at 500 hPa. At both levels the axes of the maxima Eady growth rates are displaced to the south. Some implications are discussed, including the need for caution when diagnosing changes in cyclone properties from changes in Eady growth rate calculated directly from the time-mean flow in climate change model simulations.en_US
dc.languageengen_US
dc.publisherAmerican Geophysical Unionen_US
dc.subjectEady growth rateen_US
dc.subjectbaroclinicityen_US
dc.subjectSouthern Hemisphere extratropical cyclonesen_US
dc.titleBiases in the calculation of Southern Hemisphere mean baroclinic eddy growth rateen_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.titleGeophysical Research Lettersen_US
melbourne.source.volume36en_US
melbourne.elementsidNA
melbourne.contributor.authorSimmonds, Ian
melbourne.accessrightsOpen Access


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