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D. Rind, N. K. Balachandran, and R. Suozzo

VOLUME 5JOURNAL OF CLIMATEMARCH 1992D. RIND, N. K. BALACHANDRAN,* AND R. Suozzo* *Goddard Space Flight Center, Inst it ute for Space Studies, New York, New York(Manuscript received 26 December 1990, in final form 26 June 1991)ABSTRACTThe effects of volcanic aerosols on the middle atmosphere are investigated with the Goddard Institute forSpace Studies (GISS) Global Climate/Middle Atmosphere model. Volcanic aerosols with a visible optical depthof 0.15 are put into the lower stratosphere, and

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Masaru Yamamoto and Hiroshi Tanaka

and 40 km in this study). Clouds completely cover the planet in the height range between 50 and 70 km, being formed by sulfuric acid aerosols or droplets in the size range between 0.1 and 10 μ m. In the cloud layer, 70% of the incoming solar energy is depleted by the extinction associated with multiple scattering, which heats the atmosphere within the cloud layer. Meridional dependence of solar heating is important in the dynamics of the middle atmosphere of Venus. At the top of the Venus cloud

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Martin Charron and Elisa Manzini

1. Introduction Middle atmosphere general circulation models (MAGCMs) currently used in climate simulations do not explicitly resolve the full spectrum of gravity waves that are recognized to play a fundamental role in driving the middle atmosphere circulation. The horizontal resolution used in the MAGCMs varies typically from T21 to T42 for spectral models and from 2° to 5° for gridpoint models, and this is insufficient to resolve vertically propagating small-scale gravity waves with

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Patrick Callaghan, Andrew Fusco, Gene Francis, and Murry Salby

1. Introduction The discovery of long-term changes in midlatitude ozone ( WMO 1995 ) has drawn renewed interest to the middle atmosphere and how it interacts with the troposphere. Because ozone is concentrated in the extratropical lower stratosphere, where little photochemical production occurs, issues surrounding ozone necessarily involve both chemistry and dynamics. How ozone is transferred from its photochemical source at low latitudes to high latitudes figures centrally in such

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Xun Zhu and James R. Holton

620 JOURNAL OF THE ATMOSPHERIC SCIENCES VOL. 44, No. 3Mean Fields Induced by Local Gravity-Wave Forcing in the Middle Atmosphere XUN ZHU AND JAMES R. HOLTON Department of Atmospheric Sciences, University of Washington, Seattle. WA 98195 (Manuscript received 29 May. 1986, in final form 25 September 1986) ABSTRACT We examine the role ofgeostrophic adjustment in the middle

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Xun Zhu

15 DECEMBER 1994 Z H U 3615A New Theory of the Saturated Gravity Wave Spectrum for the Middle Atmosphere XON Z~oDepartment of Earth and Planetary Sciences, The Johns Hopkins University, Baltimore, Maryland (Manuscript received 6 January 1994, in final form 3 August t~994) ABSTRACT A new theory of

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Eric L. Fleming and Sushil Chandra

860 )OURNAL OF THE ATMOSPHERIC SCIENCESVOL. 46, NO. 3NOTES AND CORRESPONDENCEEquatorial Zonal Wind in the Middle Atmosphere Derivedfrom Geopotential Height and Temperature Data ERIC L. FLEMINGApplied Research Corporation, Landover, Maryland SUSHIL CHANDRANASA /Goddard Space Flight Center, Greenbelt, Maryland19 April 1988 and 22 September 1988 ABSTRACT This paper examines the feasibility of deriving the zonal wind at the equator

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Rolando R. Garcia

The Eighth Conference on the Middle Atmosphere was held in Atlanta, Georgia, on 7–10 January 1992. Over 100 papers were presented, emphasizing areas of current interest such as advances in numerical modeling, the dynamics of the tropical middle atmosphere, polar photochemistry and dynamics, and new observational techniques. Two sessions highlighted preliminary results from the Upper Atmosphere Research Satellite.

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Marvin A. Geller and Jordan C. Alpert

JUNE 1980 MARVIN A. GELLER AND JORDAN C. ALPERT 1197Planetary Wave Coupling between the Troposphere and the Middle Atmosphere as a Possible Sun-Weather Mechanism MARVIN A. GELLER AND JORDAN C. ALPERTRosensriel School of Marine and Atmospheric Sciences, University of Miami, Miami, FL 33149 (Manuscript received 28 November 1979, in final form 11 February 1980)ABSTRACTThe possibility of planetary wave coupling between the troposphere and solar-induced alterations inthe upper

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Stephen B. Fels

MAY 1982STEPHEN B. FELS1141A Parameterization of Scale-Dependent Radiative Damping Rates in the Middle Atmosphere STEPHEN B. FELSGeophysical Fluid Dynamics Laboratory/NO,4/l, Princeton University, Princeton, NJ 08540(Manuscript received 13 August 1981, in final form 15 January 1982)ABSTRACT An analysis of the radiative damping of slowly modulated sinusoidal wave disturbances is presented. Itis shown that it is possible to incorporate scale-dependent effects in a

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