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R. Alan Plumb and Arthur Y. Hou

1790 JOURNAL OF THE ATMOSPHERIC SCIENCES VOL. 49, NO. 19The Response of a Zonally Symmetric Atmosphere to Subtropical Thermal Forcing: Threshold Behavior R. ACAN P~U~BMassachusetts Institute of Technology, Cambridge, Massachusetts ARTHUR Y. HOU NASA /Goddard Space Flight Center, Greenbelt, Maryland(Manuscript received 11 January 1991, in final form 9 December

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Piotr K. Smolarkiewicz, Roy M. Rasmussen, and Terry L. Clark

JOURNAL OF THE ATMOSPHERIC SCIENCES VOL45, NO. 13On the Dynamics of Haw 'arian Cloud Bands: Island Forcing PIOTR K. SMOLARKIEWICZNational Center for Atmospheric Research,* Boulder, Colorado ROY M. RASMUSSENBureau of Reclamation. Denver, Colorado TERRY L. CLARKNational Center for ,dtmospheric ResearCh, Boulder, Colorado(Manuscript received 9 June 1987, in final form 17 November 1987)ABSTRACT This sl ady focuses on

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A. Buzzi, A. Trevisan, and A. Speranza

15F-1~RU^RY 1984 A. BUZZI, A. TREVISAN AND A. SPERANZA 637Instabilities of a Baroclinic Flow Related to Topographic Forcing A. BuzzI, A. TREVISAN AND A. SPERANZA FISBAT--C.N.R., 40126 Bologna, Italy(Manuscript received 4 March 1983, in final form 3 October 1983)ABSTRACT The presence of bottom topography in a baroclinic flow modifies the properties of the propagating baroclinicunstable modes and allows for the appearance of new

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Thomas B. Starr

APRIL 1983 THOMAS B. STARR 929On the Dynamic Atmospheric Response to the Chandler Wobble Forcing THOMAS B. STARRlCenter for Climatic Research, Institute for Environmental Studies, University of Wisconsin-Madison, 53706(Manuscript received'30 August 1982, in final form 9 December 1982)ABSTRACT A simple form of atmospheric

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G. L. Browning and H-O. Kreiss

1 F~BRU~a~Y 1994 BROWNING AND KREISS 369The Impact of Rough Forcing on Systems with Multiple Time Scales G. L. BROWNINGCIRA, Colorado State University--Foothills Campus, Fort Collins, Colorado, and NOAA /ERL. Forecast Systems Laboratory, Boulder, Colorado H.-O. I<;am~ssDepartment of Mathematics, University of California, Los Angeles, Los Angeles, California

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Rajul E. Pandya and Dale R. Durran

2924 JOURNAL OF THE ATMOSPHERIC SCIENCES -OL. 53, bto. 20The Influence of Convectively Generated Thermal Forcing on the Mesoscale Circulation around Squall Lines RAJUL E. PANDYA AND DALE R. DURRANDepartment of gmmspheric Sciences. University of Washington, Seattle, Washington(Manuscript r~ceived I December 1995. in final form 15 April 1996)ABSTRACT The dynamical processes

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Roberto Buizza

1 May 1995 BUIZZA 1457The Impact of Orographic Forcing on Barotropic Unstable Singular Vectors ROBERTO BUIZZAEuropean Centre for Medium-Range Weather Forecasts, Shinfield Park, Reading, United Kingdom(Manuscript received I November 1993, in final form 12 October 1994) ABSTRACT The influence of topography on fluid instability has

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Elizabeth A. Barnes and David W. J. Thompson

1. Introduction Understanding the extratropical atmospheric response to thermal and mechanical forcing is central to a range of current problems in climate dynamics. Midlatitude atmosphere–ocean interaction is a function of the tropospheric response to variations in surface diabatic heating, stratosphere–troposphere coupling is a function of the tropospheric response to changes in the shear of the flow at the tropopause level and/or diabatic heating in the polar stratosphere, and the

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Shyh-Chin Chen and Kevin E. Trenberth

682JOURNAL OF THE ATMOSPHERIC SCIENCES-OL. 45, NO. 4Forced Planetary Waves in the Northern Hemisphere Winter:Wave-Coupled Orographic and Thermal Forcings $HYH-CHIN CHEN*Department of Atmospheric Sciences, University of Illinois, Urbana, Illinois KEVIN E. TRENBERTHNational Center for dtmospheric Research,** Boulder, Colorado(Manuscript received 25 February 1987, in final form 31 August 1987)ABSTRACT A more complete and new formulation of the oragraphic forcing and new

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A. A. M. Sayed and L. J. Campbell

advance our understanding of the convective generation of gravity waves. However, gravity waves are relatively small-scale phenomena with wavelengths smaller than a few hundred kilometers, and consequently, very high spatial resolution is needed in order for GCMs to represent them accurately. This means that it is often necessary to parameterize the effects of the gravity waves in GCMs by adding to the equations of the model a term to represent the drag force that would have resulted from the gravity

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