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D. G. Andrews and M. F. McIntyre

NOVEMBER 1976 D. G. A N D R E W S A N D M. E. M c I N T Y R E 2049Planetary Waves in Horizontal and Vertical Shear: Asymptotic Theory for Equatorial Waves in Weak Shear D. G. A~)~ws AND M. E. MclN~r~U. K. Universities' Atmospheri~ Modelling Group, Department of Geophysics, University of Reading and Department of Applied Mall~ematics and Theoretical Physics, University of Cambridge

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D. Jacqmin and R. S. Lindzen

724 JOURNAL OF THE 'ATMOSPHERIC SCIENCES VOL. 42, NO. 7The Causation and Sensitivity of the Northern W~nter Planetary Waves D. JACQMINICenter for Earth and Planetary Physics, Harvard University, Cambridge, MA 02138 R. S. LINDZENCenter for Meteorology and Physical Oceanography, Massachusetts Institute of Technology, Cambridge, MA 02139(Manuscript received 4 June 1984, in

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Hye-Yeong Chun, Young-Ha Kim, Hyun-Joo Choi, and Jung-Yoon Kim

planetary and gravity waves ( Holton et al. 1995 ), and its annual cycle could be related to the annual cycle of planetary-wave forcing. However, Plumb and Eluszkiewicz (1999) showed from their numerical simulations that the extratropical wave forcing is not sufficient to drive upwelling near the equator and that wave drag within 20° of the equator is required. They suggested that vertically propagating equatorial planetary and/or gravity waves may contribute to the angular momentum budget in the

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Chaim I. Garfinkel, Tiffany A. Shaw, Dennis L. Hartmann, and Darryn W. Waugh

propagation of planetary waves in the stratosphere. In the rest of this paper, we refer to the mechanism presented in Holton and Tan (1980) involving the subtropical critical line as the HT mechanism. Holton and Tan (1980) were unable to find any clear differences in the Eliassen–Palm flux (EPF) between the easterly and westerly phases of the QBO, however. Although more recent studies do find a robust change in EPF due to the QBO ( Garfinkel and Hartmann 2008 ; Yamashita et al. 2011 ), a change in

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William H. Hooke and R. Michael Jones

2048JOURNAL OF THE ATMOSPHERIC SCIENCESVOL. 43, No. 19Dissipative Waves Excited by Gravity-Wave Encounterswith the Stably Stratified Planetary Boundary Layer WILLIAM H. HWKE AND R. MICHAEL JONESEnvironmental Research Laboratories, National Oceanic and Atmospheric Administration. Boulder, CO 80303 (Manuscript received 19 September 1985, in final form 2 April 1986) ABSTRACTWe suggest that the strata of strong echo returns frequently revealed by remote

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Robert J. Kurzeja

?D-C-MB-a 1981 R O B E R T J. K U R Z E J A 2779The Transport of Trace Chemicals by Planetary Waves in the Stratosphere. .Part 1: Steady Waves ROBERT J. KURZEJA Joint Institute for Advancement.of Flight Sciences, The George Washington University, NASA-Langley Research Center, Hampton, VA 23665 (Manuscript received 30 March, 1981, in final form 28 July

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Mark R. Schoeberl

SEPTEMBER 1981 M A R K R. S C H O E B E R L 1841A Simple Modem of the Lagrangian~Mean Flow Produced by Dissipating Planetary Waves MARK R. SCHOEBERLNaval Research Laboratory, Washington, DC 20375(Manuscript received 6 August 1980, in final form 29 April 1981)ABSTRACT A simple equation for the Lagrangian-mean flow induced by damped planetary waves is derived. Theflow computed for stationary planetary

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Pablo Zurita-Gotor and Isaac M. Held

controlled by the large-scale parameters of the breaking Kelvin wave. We believe that this KR instability will prove to be a robust and centrally important component of planetary atmospheres with O (1) thermal Rossby numbers. Whether this coupled wave instability mechanism also operates in moist atmospheres in the terrestrial regime, especially as the atmosphere warms, with the slowing of eastward wave propagation through convective coupling allowing the KR instability to form with smaller thermal

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Anthony R. Hansen and Alfonso Sutera

1 JuLY 1995 HANSEN AND SUTERA 2463The Probability Density Distribution of the Planetary-Scale Atmospheric Wave Amplitude Revisited ANTHONY R. HANSENCenter for Atmospheric and Space Sciences, Augsburg College, Minneapolis, Minnesota ALFONSO S UTERADepartment of Mathematics and Physics, University of Camerino, Camerino, Italy(Manuscript received 22 April 1994, in final

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William J. Randel, Duane E. Stevens, and John L. Stanford

c)36 JOURNAL OF THE ATMOSPHERIC SCIENCES VOL. 44, No. 6A Study of Planetary Waves in the Southern Winter Troposphere and Stratosphere. Part II: Life Cycles WILLIAM J. RANDEL* AND DUANE E. STEVENSDepartment of Atmospheric Sciences, Colorado State University, Fort Collins, CO 80523 JOHN L. STANFORDDepartment of Physics, Iowa State University, Ames, IA $0010(Manuscript received 7

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