Results 31 to 40 of about 197 (99)

Radiation, Clouds, and Self‐Aggregation in RCEMIP Simulations

Journal of Advances in Modeling Earth Systems, 2023
The responses of tropical anvil cloud and low‐level cloud to a warming climate are among the largest sources of uncertainty in our estimates of climate sensitivity.
K. N. Pope, C. E. Holloway, T. R. Jones, T. H. M. Stein   +3 more
doaj   +1 more source

Self‐Aggregation of Convective Clouds With Interactive Sea Surface Temperature

Journal of Advances in Modeling Earth Systems, 2020
This study investigates the feedbacks between an interactive sea surface temperature (SST) and the self‐aggregation of deep convective clouds, using a cloud‐resolving model in nonrotating radiative‐convective equilibrium.
S. Shamekh, C. Muller, J.‐P. Duvel, F. D'Andrea   +3 more
doaj   +1 more source

Modulation of the Bifurcation in Radiative‐Convective Equilibrium by Gray‐Zone Cloud and Turbulence Parameterizations

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
doaj   +1 more source

Numerical diffusion and turbulent mixing in convective self-aggregation

Journal of Advances in Modeling Earth Systems, 2023
Spontaneous aggregation of deep convection is a common feature of idealized numerical simulations of the tropical atmosphere in Radiative-Convective Equilibrium (RCE). However, at coarse grid resolution where deep convection is not fully resolved, the occurrence of this phenomenon is extremely sensitive to subgrid-scale processes. This study focuses on
Lorenzo Silvestri, Miriam Saraceni, Paolina Bongioannini Cerlini   +2 more
openaire   +2 more sources

Temporal and spatial scaling impacts on extreme precipitation [PDF]

Atmospheric Chemistry and Physics, 2015
Convective and stratiform precipitation events have fundamentally different physical causes. Using a radar composite over Germany, this study separates these precipitation types and compares extremes at different spatial and temporal scales, ranging from
B. Eggert, P. Berg, J. O. Haerter, D. Jacob, C. Moseley   +4 more
doaj   +1 more source

RCEMIP-II: mock-Walker simulations as phase II of the radiative–convective equilibrium model intercomparison project [PDF]

Geoscientific Model Development
The radiative–convective equilibrium (RCE) model intercomparison project (RCEMIP) leveraged the simplicity of RCE to focus attention on moist convective processes and their interactions with radiation and circulation across a wide range of model types ...
A. A. Wing, L. G. Silvers, L. G. Silvers, K. A. Reed   +3 more
doaj   +1 more source

The environment of aggregated deep convection

Journal of Advances in Modeling Earth Systems, 2017
AbstractIn this study, the environment of aggregated deep convection is investigated using a vector vorticity equation cloud‐resolving model (VVM). Idealized experiments are performed under various environmental moisture with or without imposed vertical wind shear.
Wei‐Ming Tsai, Chien‐Ming Wu
openaire   +1 more source

Universality in the Spatial Evolution of Self-Aggregation of Tropical Convection [PDF]

Journal of the Atmospheric Sciences, 2019
AbstractSelf-aggregation in numerical simulations of tropical convection is described by an upscale growth and intensification of dry and moist regions. Previous work has focused on determining the relevant mechanism that induces moist regions to get moister and dry regions to get drier.
Windmiller, J., Craig, G.
openaire   +2 more sources

Sensitivity of the Horizontal Scale of Convective Self‐Aggregation to Sea Surface Temperature in Radiative Convective Equilibrium Experiments Using a Global Nonhydrostatic Model

Journal of Advances in Modeling Earth Systems, 2022
We conduct radiative convection equilibrium experiments using a global nonhydrostatic model to investigate the dependence of convective self‐aggregation (CSA) on domain size and sea surface temperature (SST).
Shuhei Matsugishi, Masaki Satoh
doaj   +1 more source

Convective self‐aggregation, cold pools, and domain size [PDF]

Geophysical Research Letters, 2013
Convective self‐aggregation refers to a phenomenon in cloud‐resolving simulations wherein the atmosphere spontaneously develops a circulation with a convecting moist patch and a nonconvecting dry patch. All previous studies have found a sharp transition to aggregated convection when the domain size exceeds a critical threshold, typically in the range ...
Nadir Jeevanjee, David M. Romps
openaire   +3 more sources