Atmosphere, 2019 To reveal key parameter-related physical mechanisms in simulating Madden-Julian Oscillation (MJO), seven physical parameters in the convection and cloud parameterization schemes of Beijing Climate Center Climate System Model (BCC_CSM1.2) are perturbed ...
Kai Huang +5 more
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Importance of the Numerical Representation of Shallow and Deep Convection for Simulations of Dust Transport over a Desert Region [PDF]
Advances in Meteorology, 2012 This study examines the representations of shallow and deep convection under two distinct stability conditions over a desert region with the use of the numerical outputs from large-eddy simulations at the 100 m horizontal resolution.
Tetsuya Takemi
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Journal of Advances in Modeling Earth SystemsIn a previous study (Xiao et al., 2023, https://doi.org/10.1029/2022ms003526), we found that ignoring the moist convective downdrafts associated with overshooting clouds in parameterizations can lead to significant biases in the simulated depth and ...
Heng Xiao +3 more
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Mitigation of the double ITCZ syndrome in BCC-CSM2-MR through improving parameterizations of boundary-layer turbulence and shallow convection [PDF]
Geoscientific Model Development, 2021 The spurious double Intertropical Convergence Zone (ITCZ) is one of the most prominent systematic biases in coupled atmosphere–ocean general circulation models (CGCMs), and the underestimated marine stratus over eastern subtropical oceans has been ...
Y. Lu, T. Wu, Y. Li, B. Yang, B. Yang
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On the role of aerosols, humidity, and vertical wind shear in the transition of shallow-to-deep convection at the Green Ocean Amazon 2014/5 site [PDF]
Atmospheric Chemistry and Physics, 2018 The preconditioning of the atmosphere for a shallow-to-deep convective transition during the dry-to-wet season transition period (August–November) is investigated using Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) GoAmazon2014/5 ...
S. Chakraborty +3 more
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Analytical and numerical stability analysis of Soret-driven convection in a horizontal porous layer [PDF]
, 2007 We present an analytical and numerical stability analysis of Soret-driven convection in a porous cavity saturated by a binary fluid. Both the mechanical equilibrium solution and the monocellular flow obtained for particular ranges of the physical ...
Mojtabi, Abdelkader +5 more
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Shallow cloud variability in Houston, Texas, during the ESCAPE and TRACER field experiments [PDF]
Atmospheric Chemistry and PhysicsShallow convection plays an important role in Earth's climate system by regulating the vertical transport of heat, moisture, and momentum in the lower troposphere.
Z. Mages +6 more
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Role of Surface Friction on Shallow Nonprecipitating Convection [PDF]
Journal of the Atmospheric Sciences, 2018 The role of surface friction on shallow nonprecipitating convection is investigated using a series of large-eddy simulations with varying surface friction velocity and with a cloud identification algorithm. As surface friction intensifies, convective rolls dominate over convective cells and secondary overturning circulation becomes stronger in the ...
Park, S-B, Boeing, S, Gentine, P
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Turbulent collision-coalescence in maritime shallow convection [PDF]
Atmospheric Chemistry and Physics, 2013 This paper discusses cloud simulations aiming at quantitative assessment of the effects of cloud turbulence on rain development in shallow ice-free convective clouds.
A. A. Wyszogrodzki +3 more
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Organization and Oscillations in Simulated Shallow Convective Clouds [PDF]
Journal of Advances in Modeling Earth Systems, 2018 AbstractPhysical insights into processes governing temporal organization and evolution of cloud fields are of great importance for climate research. Here using large eddy simulations with a bin microphysics scheme, we show that warm convective cloud fields exhibit oscillations with two distinct periods (~10 and ~90 min, for the case studied here).
Guy Dagan +3 more
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