Mitchell W. Moncrieff
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View article: The Energy Exascale Earth System Model Version 3: 1. Overview of the Atmospheric Component
The Energy Exascale Earth System Model Version 3: 1. Overview of the Atmospheric Component Open
This paper describes the atmospheric component of the US Department of Energy's Energy Exascale Earth System Model (E3SM) version 3. Significant updates have been made to the atmospheric physics compared to earlier versions. Specifically, …
View article: Impact of Microphysics and Convection Schemes on the Mean‐State and Variability of Clouds and Precipitation in the E3SM Atmosphere Model
Impact of Microphysics and Convection Schemes on the Mean‐State and Variability of Clouds and Precipitation in the E3SM Atmosphere Model Open
Skillful representation of tropical variability and diurnal cycle of precipitation has remained a challenge in global atmosphere models, and often improvements in the variability lead to degradation in the mean‐state. Here, we introduce a …
View article: Advancing Organized Convection Representation in the Unified Model: Implementing and Enhancing Multiscale Coherent Structure Parameterization
Advancing Organized Convection Representation in the Unified Model: Implementing and Enhancing Multiscale Coherent Structure Parameterization Open
To address the effect of stratiform latent heating on meso‐ to large‐scale circulations, an enhanced implementation of the Multiscale Coherent Structure Parameterization (MCSP) is developed for the Met Office Unified Model. MCSP represents…
View article: Improving and Assessing Organized Convection Parameterization in the Unified Model
Improving and Assessing Organized Convection Parameterization in the Unified Model Open
Improving weather and climate prediction cannot avoid accurately representing organized convection, as its convective and stratiform components distinctly reshape large-scale circulations via redistributing momentum and heat. For latent he…
View article: Effects of Organized Convection Parameterization on the MJO and Precipitation in E3SMv1. Part I: Mesoscale Heating
Effects of Organized Convection Parameterization on the MJO and Precipitation in E3SMv1. Part I: Mesoscale Heating Open
Mesoscale organization of convection is typically not represented in global circulation models, and hence its influence on the global circulation is not accounted for. The heating component of a parameterization that represents the dynamic…
View article: Comment on gmd-2020-388
Comment on gmd-2020-388 Open
Abstract. Toward the goal of linking wind shear with the mesoscale organization of deep convection, a procedure for producing a climatology of tropical wind shear from the output of the Met Office Unified Model climate model is presented. …
View article: Shear‐Parallel Tropical Convective Systems: Importance of Cold Pools and Wind Shear
Shear‐Parallel Tropical Convective Systems: Importance of Cold Pools and Wind Shear Open
The impact of cold pools on line‐orientated convective systems is assessed using idealized simulations of tropical oceanic convection under weak, moderate, and strong wind shear regimes. Cold pools are weakened by suppressing evaporation i…
View article: Toward a Dynamical Foundation for Organized Convection Parameterization in GCMs
Toward a Dynamical Foundation for Organized Convection Parameterization in GCMs Open
A dynamically based parameterization of organized moist convection in the form of multiscale coherent structures and slantwise layer overturning principles provides upscale heat and counter‐gradient momentum transports distinct from diffus…
View article: Convective Organization in Evolving Large-Scale Forcing Represented by a Highly Truncated Numerical Archetype
Convective Organization in Evolving Large-Scale Forcing Represented by a Highly Truncated Numerical Archetype Open
Considered as a prognostic generalization of mass-flux-based convection parameterization, the highly truncated nonhydrostatic anelastic model with segmentally constant approximation (NAM–SCA) is tested with time-evolving large-scale forcin…
View article: Insights into convective momentum transport and its parametrization from idealized simulations of organized convection
Insights into convective momentum transport and its parametrization from idealized simulations of organized convection Open
Deep convection is a multiscale process that influences the budgets of heat, moisture and momentum significantly. In global climate models, the thermodynamic effects of convection are normally treated by parametrization schemes, with a sep…
View article: THORPEX Research and the Science of Prediction
THORPEX Research and the Science of Prediction Open
The Observing System Research and Predictability Experiment (THORPEX) was a 10-yr, international research program organized by the World Meteorological Organization’s World Weather Research Program. THORPEX was motivated by the need to acc…