Results 21 to 30 of about 4,601 (255)

Can We Use 1D Models to Predict 3D Model Response to Forcing in an Idealized Framework?

Journal of Advances in Modeling Earth Systems, 2022
Single‐column models (SCMs) simulations are sometimes used to evaluate model physics and aid parameterization development. However, few studies have systematically compared SCM behavior—where column boundary conditions are specified—with that of ...
Y.‐L. Hwong, S. C. Sherwood, D. Fuchs
doaj   +1 more source

On the Resolution Sensitivity of Equatorial Precipitation in a GFDL Global Atmospheric Model

Journal of Advances in Modeling Earth Systems, 2023
We performed a series of aquaplanet simulations at the horizontal resolution from 50 to 6 km with identical parameterization settings using the Geophysical Fluid Dynamics Laboratory's Atmosphere Model version 4 implemented with the two‐moment Morrison ...
Pu Lin, Yi Ming, Thomas Robinson
doaj   +1 more source

A method for characterizing the spatial organization of deep convective cores in deep convective systems' cloud shield using idealized elementary convective structure decomposition [PDF]

Atmospheric Measurement Techniques
Deep convective systems (DCSs) play a fundamental role in atmospheric dynamics, precipitation, cloud radiative effects, and large-scale circulations.
L. Netz, T. Fiolleau, R. Roca
doaj   +1 more source

Characteristic Form and Distance in High‐Level Hierarchical Structure of Self‐Aggregated Clouds in Radiative‐Convective Equilibrium

Geophysical Research Letters, 2022
The nature of convective organization remains elusive, despite its importance in understanding the role of clouds in climate systems. This study reports a new type of large‐scale structure formed by the self‐organization of deep moist atmospheric ...
Tomoro Yanase, Seiya Nishizawa, Hiroaki Miura, Hirofumi Tomita   +3 more
doaj   +1 more source

Divergent convective outflow in large-eddy simulations [PDF]

Atmospheric Chemistry and Physics, 2023
Upper-tropospheric outflow is analysed in cloud-resolving large-eddy simulations. Thereby, the role of convective organization, latent heating, and other factors in upper-tropospheric divergent-outflow variability from deep convection is diagnosed using ...
E. Groot, H. Tost
doaj   +1 more source

Assessment of object-based indices to identify convective organization [PDF]

Geoscientific Model Development
The emerging field of convective organization has attracted significant attention due to its potential implications for weather and climate. Numerous indices have been developed to identify organization of convection, serving as essential tools for ...
G. Mandorli, C. J. Stubenrauch
doaj   +1 more source

Ensemble of Radiative‐Convective Equilibrium Simulations Near the Aggregated and Scattered Boundary

Geophysical Research Letters, 2021
An ensemble of 10 radiative‐convective equilibrium (RCE) simulations near the sharp transition zone between scattered and aggregated states are examined in a square‐domain cloud‐resolving model.
Ching‐Shu Hung, Hiroaki Miura
doaj   +1 more source

Forcing Convection to Aggregate Using Diabatic Heating Perturbations

Journal of Advances in Modeling Earth Systems, 2021
Tropical deep convection can aggregate into large clusters, which can have impacts on the local humidity and precipitation. Sea surface temperature (SST) gradients have been shown to organize convection, yet there has been little work done to investigate
Beth Dingley, Guy Dagan, Philip Stier
doaj   +1 more source

An Analytical Model of Two‐Dimensional Mesoscale Circulation and Associated Properties Across Squall Lines

AGU Advances, 2022
Mesoscale convective systems (MCS) contribute about half of the world's precipitation and create flash flooding as well as other extreme weather events. Despite steady progress in research of these systems in the last several decades, better theoretical ...
Minghua Zhang
doaj   +1 more source

Diurnal Circulation Adjustment and Organized Deep Convection [PDF]

Journal of Climate, 2018
This study investigates the diurnal cycle of tropical organized deep convection and the feedback in large-scale circulation. By considering gravity wave phase speeds, we find that the circulation adjustment into weak temperature gradient (WTG) balance occurs rapidly (<6 h) relative to diurnal diabatic forcing on the spatial scales typical of ...
Ruppert, J., Hohenegger, C.
openaire   +2 more sources