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Convective Self-Aggregation in Numerical Simulations: A Review

Abstract : Organized convection in the tropics occurs across a range of spatial and temporal scales and strongly influences cloud cover and humidity. One mode of organization found is "self-aggregation," in which moist convection spontaneously organizes into one or several isolated clusters despite spatially homogeneous boundary conditions and forcing. Self-aggregation is driven by interactions between clouds, moisture, radiation, surface fluxes, and circulation, and occurs in a wide variety of idealized simulations of radiative-convective equilibrium. Here we provide a review of convective self-aggregation in numerical simulations, including its character, causes, and effects. We describe the evolution of self-aggregation including its time and length scales and the physical mechanisms leading to its triggering and maintenance, and we also discuss possible links to climate and climate change.
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Submitted on : Tuesday, July 19, 2022 - 8:33:39 AM
Last modification on : Tuesday, August 2, 2022 - 4:29:53 AM

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Allison A. Wing, Kerry Emanuel, Christopher E. Holloway, Caroline Muller. Convective Self-Aggregation in Numerical Simulations: A Review. Surveys in Geophysics, 2017, 38, pp.1173-1197. ⟨10.1007/s10712-017-9408-4⟩. ⟨insu-03727042⟩

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