000031451 001__ 31451 000031451 005__ 20240712100827.0 000031451 0247_ $$2DOI$$a10.1175/1520-0469(2003)060<2229:AGFOLM>2.0.CO;2 000031451 0247_ $$2WOS$$aWOS:000184841500013 000031451 0247_ $$2Handle$$a2128/20692 000031451 037__ $$aPreJuSER-31451 000031451 041__ $$aeng 000031451 082__ $$a550 000031451 084__ $$2WoS$$aMeteorology & Atmospheric Sciences 000031451 1001_ $$0P:(DE-Juel1)129138$$aMüller, R.$$b0$$uFZJ 000031451 245__ $$aA Generalized Form of Lait's Modified Potential Vorticity 000031451 260__ $$aBoston, Mass.$$bAmerican Meteorological Soc.$$c2003 000031451 300__ $$a2229 - 2237 000031451 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article 000031451 3367_ $$2DataCite$$aOutput Types/Journal article 000031451 3367_ $$00$$2EndNote$$aJournal Article 000031451 3367_ $$2BibTeX$$aARTICLE 000031451 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000031451 3367_ $$2DRIVER$$aarticle 000031451 440_0 $$07881$$aJournal of the Atmospheric Sciences$$v60$$x0022-4928 000031451 500__ $$aRecord converted from VDB: 12.11.2012 000031451 520__ $$aErtel's potential vorticity P is in widespread use as a diagnostic of dynamical processes in the stratosphere. For a variety of applications, however, the exponential increase of P with altitude is problematic. For this reason, Lait proposed a modified potential vorticity Pi(L) where a physically meaningful scaling is introduced that removes much of the altitude dependence of P. Here a generalized form of Pi(L) is proposed by introducing an additional degree of freedom in the scaling. This generalized modified potential vorticity Pi(g) possesses the same conservation properties as Pi(L) itself and as the classic potential vorticity P but can be adjusted more closely to the specific situation under investigation. Comparison, over a large altitude range in the stratosphere, of fields of Pi(g) with dynamical measures of the polar vortex edge and with observations of the long-lived trace gas N2O shows that Pi(g) constitutes a more intuitively interpretable quantity than Pi(L). 000031451 536__ $$0G:(DE-Juel1)FUEK257$$2G:(DE-HGF)$$aChemie und Dynamik der Geo-Biosphäre$$cU01$$x0 000031451 588__ $$aDataset connected to Web of Science 000031451 650_7 $$2WoSType$$aJ 000031451 7001_ $$0P:(DE-Juel1)129123$$aGünther, G.$$b1$$uFZJ 000031451 773__ $$0PERI:(DE-600)2025890-2$$a10.1175/1520-0469(2003)060<2229:AGFOLM>2.0.CO;2$$gVol. 60, p. 2229 - 2237$$p2229 - 2237$$q60<2229 - 2237$$tJournal of the atmospheric sciences$$v60$$x0022-4928$$y2003 000031451 8564_ $$uhttps://juser.fz-juelich.de/record/31451/files/%221520-0469%282003%29060_2229_agfolm_2.0.co$$yOpenAccess 000031451 909CO $$ooai:juser.fz-juelich.de:31451$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire 000031451 9131_ $$0G:(DE-Juel1)FUEK257$$bEnvironment (Umwelt)$$kU01$$lChemie und Dynamik der Geo-Biosphäre$$vChemie und Dynamik der Geo-Biosphäre$$x0 000031451 9141_ $$y2003 000031451 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000031451 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed 000031451 9201_ $$0I:(DE-Juel1)VDB47$$d31.12.2006$$gICG$$kICG-I$$lStratosphäre$$x0 000031451 970__ $$aVDB:(DE-Juel1)32572 000031451 9801_ $$aFullTexts 000031451 980__ $$aVDB 000031451 980__ $$aConvertedRecord 000031451 980__ $$ajournal 000031451 980__ $$aI:(DE-Juel1)IEK-7-20101013 000031451 980__ $$aUNRESTRICTED 000031451 981__ $$aI:(DE-Juel1)ICE-4-20101013 000031451 981__ $$aI:(DE-Juel1)IEK-7-20101013