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Samson Hagos

observations. In those algorithms, cloud types are inferred from the vertical structure of radar reflectivity and the associated profiles are obtained from cloud-resolving model simulations ( Shige et al. 2004 ; Tao et al. 2006 ). Another method of estimating latent heating profiles has been the use of in situ measurements of wind, pressure, and temperature using an array of soundings over a region to calculate the total diabatic heating Q 1 . In this approach, vertical velocity is first derived from

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Chidong Zhang and Samson M. Hagos

1. Introduction Tropical convective systems affect the large-scale circulation most effectively through diabatic heating due largely to latent heat release and, to a lesser degree, radiative effects. Here, “large-scale” refers to scales associated with synoptic disturbances and waves, the intraseasonal oscillation, and seasonally and interannually varying planetary-scale zonal (Walker) and meridional overturning circulations. Understanding vertical structures and evolution of diabatic heating

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Youkyoung Jang and David M. Straus

1. Introduction One central theme in the study of seasonal predictability is the influence of persistent tropical sea surface temperature (SST) anomalies on both the tropical and extratropical circulations. A tropical SST anomaly (assumed positive) tends to increase both low-level convergence and moisture ( Lindzen and Nigam 1987 ; Raymond 1994 ), thereby promoting anomalous deep convection and hence diabatic heating. The heating is balanced by anomalies in rising motion (in the time mean

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Clinton T. Schmidt and Timothy J. Garrett

specific aspects of the relevant physics. Here, we look at the response of cirrus clouds to local thermal radiative flux divergence within cloud condensate. The discussion that follows largely neglects precipitation, synoptic-scale motions, and shear dynamics to facilitate description of a simple theoretical framework within a parameter space of two dimensionless numbers. A similar approach has been employed previously to constrain small-scale interactions between diabatic heating and atmospheric

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Michael Hantel and Hans-Reinhard Baader

1180 JOURNAL OF THE ATMOSPHERIC SCIENCES VO~.VME35Diabatic Heating Clknatology of the Zonal Atmosphere MICHAEL HANTEL AND HANS-REINHARD BAADERMeteorologisehes Institu4 der Universiti# Bonn, 5300 Bonn 1, Federal Republic of Germany(Manuscript received 21 October 1977, in final form 21 February 1978)ABSTRACT The diabatic heating Q is the ultimate driving force of the general circulation and climate. We

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Kyong-Hwan Seo and Seok-Woo Son

1. Introduction The Madden–Julian oscillation (MJO) is the most dominant physical mode of tropical intraseasonal variability with a characteristic time scale of 30–70 days ( Madden and Julian 1972 ). Previous studies have found that the tropical diabatic heating associated with the MJO induces the atmospheric circulation anomalies in both the tropics and extratropics (e.g., Matthews et al. 2004 ; Lin et al. 2006 , and references therein). The teleconnection to the extratropics occurs in the

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Mingfang Ting and Prashant D. Sardeshmukh

15MARCH 1993 TING AND SARDESHMUKH 907Factors Determining the Extratropical Responseto Equatorial Diabatic Heating Anomalies MINGFANG TING AND PRASHANT D. SARDESHMUKHCooperative Institute for Research in the Environmental Sciences, University of Colorado, Boulder, Colorado(Manuscript received 3 September 1991, in final form 4 June 1992)ABSTRACT The steady linear response of a spherical

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Mingyu Park and Sukyoung Lee

was found that the SWI tends to be positive 7–10 days after an enhanced warm pool convection, which enhances the zonal asymmetry of the climatological heating field in the tropics. Positive SWI days are typically followed by Arctic warming 8–10 days later. Examining the stationary wave responses to individual forcing terms, presented by Held et al. (2002) , we find that the responses to diabatic heating fields—tropical and extratropical heating individually—exhibit circulation patterns that

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Yuh-Lang Lin

1 OCTOBER 1989 YUH-LANG LIN 3015A Theory of Cyclogenesis Forced by Diabatic Heating. Part I: A Quasi-geostrophic Approach YUH-LANG LINDepartment of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina(Manuscript received 5 December 1988, in final form 8 May 1989) ABSTRACT A quasi

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Ben-Da Lin

1206 3OURNAL OF THE ATMOSPHERIC SCIENCES VOLUME39The Behavior of Winter Stationary Planetary Waves Forced by Topography and Diabatic Heating~ BEN-DA LIN2Department of Atmospheric Sciences, University of Washington, Seattle 98195(Manuscript received 13 October 1981, in final form 25 February 1982)ABSTRACT A primitive equation linear wave model is developed to examine the

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