Results 11 to 20 of about 1,621 (232)
Journal of Advances in Modeling Earth Systems, 2021 This study investigates the mechanisms by which small‐scale turbulence and cloud physics determine the organization of large‐scale convection in radiative‐convective equilibrium (RCE), an idealization of the tropical atmosphere.
Xiaoming Shi, Yiyuan Fan
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Scaling of the entropy budget with surface temperature in radiative‐convective equilibrium [PDF]
Journal of Advances in Modeling Earth Systems, 2016 AbstractThe entropy budget of the atmosphere is examined in simulations of radiative‐convective equilibrium with a cloud‐system resolving model over a wide range of surface temperatures from 281 to 311 K. Irreversible phase changes and the diffusion of water vapor account for more than half of the irreversible entropy production within the atmosphere ...
Martin S Singh, Paul A O'Gorman
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Properties, Changes, and Controls of Deep‐Convecting Clouds in Radiative‐Convective Equilibrium
Journal of Advances in Modeling Earth Systems, 2022 Changes in tropical high clouds associated with deep convection with warming are one of the largest sources of uncertainty in climate feedbacks. Here, we leverage an ensemble of models of many types in an idealized configuration to investigate how and ...
Catherine L. Stauffer, Allison A. Wing
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Radiative Convective Equilibrium and Organized Convection: An Observational Perspective [PDF]
Journal of Geophysical Research: Atmospheres, 2019 AbstractRadiative convective equilibrium (RCE) describes a balance between the cooling of the atmosphere by radiation and the heating through latent heat release and surface heat fluxes. While RCE is known to provide an energetic constraint on the atmosphere at the global scale, little is known about the proximity of the atmosphere to RCE at smaller ...
C. Jakob, M. S. Singh, L. Jungandreas
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Atmospheric Instability and Its Associated Oscillations in the Tropics
Atmosphere, 2023 The interaction between tropical clouds and radiation is studied in the context of the weak temperature gradient approximation, using very low order systems (e.g., a two-column two-layer model) as a zeroth-order approximation.
Xiping Zeng
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Convective Dynamics and the Response of Precipitation Extremes to Warming in Radiative–Convective Equilibrium [PDF]
Journal of the Atmospheric Sciences, 2020 AbstractTropical precipitation extremes are expected to strengthen with warming, but quantitative estimates remain uncertain because of a poor understanding of changes in convective dynamics. This uncertainty is addressed here by analyzing idealized convection-permitting simulations of radiative–convective equilibrium in long-channel geometry. Across a
Abbott, Tristan H +2 more
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The emergence of a new wintertime Arctic energy balance regime
Environmental Research: Climate, 2023 The modern Arctic climate during wintertime is characterized by sea-ice cover, a strong surface temperature inversion, and the absence of convection. Correspondingly, the energy balance in the Arctic atmosphere today is dominated by atmospheric radiative
O Miyawaki, T A Shaw, M F Jansen
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Vertical Resolution Impacts Explicit Simulation of Deep Convection
Journal of Advances in Modeling Earth Systems, 2023 The aggregation of tropical convection greatly influences the mean‐state of the atmosphere, altering humidity distributions, total atmospheric radiative cooling, and cloud amounts.
A. M. Jenney +2 more
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Journal of Advances in Modeling Earth Systems, 2022 To explore the interactions among column processes in the Community Atmosphere Model (CAM), the single‐column version of CAM (SCAM) is integrated for 1000 days in radiative‐convective equilibrium (RCE) with tropical values of boundary conditions ...
I‐Kuan Hu +5 more
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Assessing Memory in Convection Schemes Using Idealized Tests
Journal of Advances in Modeling Earth Systems, 2023 Two assumptions commonly applied in convection schemes—the diagnostic and quasi‐equilibrium assumptions—imply that convective activity (e.g., convective precipitation) is controlled only by the large‐scale (macrostate) environment at the time.
Y.‐L. Hwong +4 more
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