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Mingyu Park and Sukyoung Lee

.1175/1520-0469(2004)061<0145:ITNAOA>2.0.CO;2 . 10.1175/1520-0469(2004)061<0145:ITNAOA>2.0.CO;2 Garfinkel , C. I. , S. B. Feldstein , D. W. Waugh , C. Yoo , and S. Lee , 2012 : Observed connection between stratospheric sudden warmings and the Madden-Julian oscillation . Geophys. Res. Lett. , 39 , L18807, . 10.1029/2012GL053144 Goss , M. , S. B. Feldstein , and S. Lee , 2016 : Stationary wave interference and its relation to tropical convection and Arctic warming . J

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Xun Jiang, Jingqian Wang, Edward T. Olsen, Thomas Pagano, Luke L. Chen, and Yuk L. Yung

. Labitzke , K. , 1977 : Interannual variability of the winter stratosphere in the Northern Hemisphere . Mon. Wea. Rev. , 105 , 762 – 770 . Labitzke , K. , and B. Naujokat , 2000 : The lower arctic stratosphere in winter since 1952. SPARC Newsletter, No. 15, SPARC International Project Office, Zurich, Switzerland, 11–14 . Li , K.-F. , B. Tian , D. E. Waliser , and Y. L. Yung , 2010 : Tropical mid-tropospheric CO 2 variability driven by the Madden–Julian oscillation . Proc

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Chin-Hoh Moeng and David A. Randall

, in final form 16 February 1984) ABSTRACT We have used a third-order closure model, p~oposed by Andr6 and others, in which the time-rate-of-changeterms, the relaxation and rapid effects for the pressure-related terms, and the clipping approximation areincluded along with the quasi-normal closure, to study turbulence in a cloudy layer that is cooled radiativelyfrom above. The results show a spurious oscillation, with the largest amplitude near the inversion. An analysisof

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Albert Cahn Jr.

JOURNAL OF METEOROLOGYVOLUME 2. NUMBER 2JUNE 1945AN INVESTIGATION OF THE FREE OSCILLATIONS OF A SIMPLE CURRENT SYSTEM By Albert Cahn, Jr. The University of Chicago(Manuscript Received, December 11, 1944)ABSTRACTAny sudden local addition of momentum to a rotating fluid body will generally result in some type ofoscillation of that body. In the case of the ocean, this oscillation will include the form of "long" or "tidal':waves. A previous investigation by Rossby ihdicated that the

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F. Kenneth Hare

36JOURNAL OF METEOROLOGY VOLUME 17THE DISTURBED CIRCULATION OF THE ARCTIC STRATOSPHERE 1~2 By F. Kenneth Hare McGill University(Manuscript received 6 April 1959)ABSTRACTThe annual cycle of disturbed circulation in the arctic stratosphere (Le., areas north of the main jet-coreof the Ferrel westerlies) is discussed in the light of climatological and synoptic evidence. In summer, theFerrel westerlies and their wave-trains choke off with height to a zero-level near 50 mb. Because

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Benjamin A. Cash, Paul J. Kushner, and Geoffrey K. Vallis

itself. Our understanding of zonal- mean AM dynamics could therefore, we believe, be improved by focusing on the local circulation anomalies associated with zonal-mean AM events. Acknowledgments BAC is supported by DOE Grant DE-FG02-01ER63256. REFERENCES Ambaum , M. H. P. , B. J. Hoskins , and D. B. Stephenson , 2001 : Arctic oscillation or North Atlantic oscillation? J. Climate , 14 , 3495 – 3507 . Cash , B. A. , P. J. Kushner , and G. K. Vallis , 2002 : The structure and

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François Lott, Olivier de Viron, Pedro Viterbo, and François Vial

balance (see Lott and d’Andrea 2005 ). This process results in lead–lag relationships between the mountain torque and the mass AAM, which have some interest for the low-frequency variability in the Northern Hemisphere extratropics ( Lott et al. 2004a ). Indeed, the leading mode of variability there, the Arctic Oscillation ( Thompson and Wallace 1998 ), corresponds to a redistribution of mass from polar latitudes to the midlatitudes and the subtropics. Its variations are associated with substantial

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Steven B. Feldstein and Christian Franzke

arise from the use of these techniques that defines the teleconnection pattern. Recent studies have questioned which of two very similar teleconnection patterns, the North Atlantic Oscillation (NAO) or the Northern Hemisphere annular mode (NAM; also referred to as the Arctic Oscillation or the AO), better represent the dominant form of low-frequency variability observed in the Northern Hemisphere. The NAO is generally regarded as being a pattern that is primarily confined to the North Atlantic

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Branko Kosović and Judith A. Curry

, surface cooling rate, and the inversion strength for these simulations were based on the measurements made during BASE on 1 October 1994 from flight number 7. We used the observations made over the Arctic ocean because conditions that persist over sea ice, which include stable stratification, a short inertial oscillation period, and sufficiently strong winds, are conducive to the development of quasi-steady, stably stratified ABLs in the absence of mesoscale effects and surface inhomogeneities. To be

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J. W. Waters, W. G. Read, L. Froidevaux, R. F. Jarnot, R. E. Cofield, D. A. Flower, G. K. Lau, H. M. Pickett, M. L. Santee, D. L. Wu, M. A. Boyles, J. R. Burke, R. R. Lay, M. S. Loo, N. J. Livesey, T. A. Lungu, G. L. Manney, L. L. Nakamura, V. S. Perun, B. P. Ridenoure, Z. Shippony, P. H. Siegel, R. P. Thurstans, R. S. Harwood, H. C. Pumphrey, and M. J. Filipiak

oscillation in the zonal wind in the tropical Pacific. J. Atmos. Sci., 28, 702–708. Manney, G. L., L. Froidevaux, J. W. Waters, L. S. Elson, E. F. Fishbein, R. W. Zurek, R. S. Harwood, and W. A. Lahoz, 1993: The evolution of ozone observed by UARS MLS in the 1992 late winter southern polar vortex. Geophys. Res. Lett., 20, 1279–1282. ——, and Coauthors, 1994: Chemical depletion of ozone in the Arctic lower stratosphere during winter 1992–93. Nature, 370, 429–434. ——, R. W. Zurek, L

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