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000047481 084__ $$2WoS$$aGeochemistry & Geophysics
000047481 084__ $$2WoS$$aMeteorology & Atmospheric Sciences
000047481 1001_ $$0P:(DE-Juel1)VDB12001$$aPreusse, P.$$b0$$uFZJ
000047481 245__ $$aTropopause to mesopause gravity waves in August: Measurement and modeling
000047481 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2006
000047481 300__ $$a1730 - 1751
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000047481 440_0 $$014744$$aJournal of Atmospheric and Solar-Terrestrial Physics$$v68$$x1364-6826
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000047481 520__ $$aGlobal gravity wave (GW) distributions are retrieved from infrared emission limb soundings taken by the CRISTA instrument in August 1997 and by the SABER instrument in August 2003. The investigated altitudes cover the whole middle atmosphere from the tropopause to the mesopause. The data agree semi-quantitatively in their salient features and only small deviations due to the different meteorological conditions in the two years are observed. Of particular interest is the decrease of GW activity at the top of the southern polar vortex and an accompanying shift of GW activity towards the subtropics in the mesosphere. We emulate this feature by two conceptionally different models, the Warner and McIntyre spectral parameterization scheme and the GROGRAT GW ray tracer. Both models indicate that saturation limits and GW breaking are the governing processes in creating this structure. Also, both models can well reproduce the global distributions except for two important points: (1) convectively generated GWs in the northern subtropics are largely underestimated; (2) northern hemisphere high latitude activity is grossly overestimated. These points indicate that GW distribution in general circulation models are not fully realistic. Refined measurements are required to constrain more realistic GW source distributions. (C) 2006 Elsevier Ltd. All rights reserved.
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000047481 65320 $$2Author$$asatellite measurements
000047481 65320 $$2Author$$astratosphere
000047481 65320 $$2Author$$amesosphere
000047481 65320 $$2Author$$agravity waves
000047481 65320 $$2Author$$aray tracing
000047481 7001_ $$0P:(DE-Juel1)VDB13497$$aErn, M.$$b1$$uFZJ
000047481 7001_ $$0P:(DE-HGF)0$$aEckermann, S. D.$$b2
000047481 7001_ $$0P:(DE-HGF)0$$aWarner, C. D.$$b3
000047481 7001_ $$0P:(DE-HGF)0$$aPicard, R. H.$$b4
000047481 7001_ $$0P:(DE-HGF)0$$aKnieling, P.$$b5
000047481 7001_ $$0P:(DE-Juel1)VDB14772$$aKrebsbach, M.$$b6$$uFZJ
000047481 7001_ $$0P:(DE-HGF)0$$aRussell III, J. M.$$b7
000047481 7001_ $$0P:(DE-HGF)0$$aMlynczak, M. G.$$b8
000047481 7001_ $$0P:(DE-HGF)0$$aMertens, C. J.$$b9
000047481 7001_ $$0P:(DE-Juel1)129145$$aRiese, M.$$b10$$uFZJ
000047481 773__ $$0PERI:(DE-600)2020910-1$$a10.1016/j.jastp.2005.10.019$$gVol. 68, p. 1730 - 1751$$p1730 - 1751$$q68<1730 - 1751$$tJournal of atmospheric and solar-terrestrial physics$$v68$$x1364-6826$$y2006
000047481 8567_ $$uhttp://dx.doi.org/10.1016/j.jastp.2005.10.019
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