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Responses of Shallow Cumulus Convection to Large-Scale Temperature and Moisture Perturbations: A Comparison of Large-Eddy Simulations and a Convective Parameterization Based on Stochastically Entraining Parcels
Publisher: American Meteorological Society
Abstract: esponses of shallow cumuli to large-scale temperature/moisture perturbations are examined through diagnostics of large-eddy simulations (LESs) of the undisturbed Barbados Oceanographic and Meteorological Experiment (BOMEX) ...
Roles of Dynamic Forcings and Diabatic Heating in Summer Extreme Precipitation in East China and the Southeastern United States
Publisher: American Meteorological Society
Abstract: AbstractExtratropical regional-scale extreme precipitation events (EPEs) are usually associated with certain synoptic perturbations superimposed on slow-varying background circulations. These perturbations induce a dynamically ...
A Global Quasigeostrophic Diagnosis of Extratropical Extreme Precipitation
Publisher: American Meteorological Society
Abstract: This paper presents a global picture of the dynamic processes and synoptic characteristics of extratropical extreme precipitation events (EPEs), defined as annual maximum daily precipitation averaged over 7.5° × 7.5° ...
Modeling the Interaction between Quasigeostrophic Vertical Motion and Convection in a Single Column
Publisher: American Meteorological Society
Abstract: single-column modeling approach is proposed to study the interaction between convection and large-scale dynamics using the quasigeostrophic (QG) framework. This approach extends the notion of ?parameterization of large-scale ...
Responses of Tropical Deep Convection to the QBO: Cloud-Resolving Simulations
Publisher: American Meteorological Society
Abstract: bservational studies suggest that the stratospheric quasi-biennial oscillation (QBO) can modulate tropical deep convection. The authors use a cloud-resolving model with a limited domain, representing a convective column ...
Observational Evaluation of a Convective Quasi-Equilibrium View of Monsoons
Publisher: American Meteorological Society
Abstract: Idealized dynamical theories that employ a convective quasi-equilibrium (QE) treatment for the diabatic effects of moist convection have been used to explain the location, intensity, and intraseasonal evolution of monsoons. ...
Possible Dependence of Climate on Atmospheric Mass: A Convection–Circulation–Cloud Coupled Feedback
Publisher: American Meteorological Society
Abstract: The total mass of the atmosphere [or equivalently, the background surface pressure (SP)] may have varied significantly over the evolutionary histories of Earth and other planets. Atmospheric mass can affect climate by ...
The Impact of the QBO on MJO Convection in Cloud-Resolving Simulations
Publisher: American Meteorological Society
Abstract: This study examines the relationship between the Madden?Julian oscillation (MJO) and the stratospheric quasi-biennial oscillation (QBO) in a limited-area cloud-resolving model with parameterized large-scale dynamics. The ...
Weak Equatorial Superrotation during the Past 250 Million Years
Publisher: American Meteorological Society
Weak Equatorial Superrotation during the Past 250 Million Years
Publisher: American Meteorological Society