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RISA Unified Convection Scheme (UNICON). Part I: Formulation
Publisher: American Meteorological Society
Abstract: he author develops a unified convection scheme (UNICON) that parameterizes relative (i.e., with respect to the grid-mean vertical flow) subgrid vertical transport by nonlocal asymmetric turbulent eddies. UNICON is a ...
A Unified Convection Scheme (UNICON). Part II: Simulation
Publisher: American Meteorological Society
Abstract: unified convection scheme (UNICON) is implemented into the Community Atmosphere Model, version 5 (CAM5), and tested in single-column and global simulations forced by observed sea surface temperature. Compared to CAM5, ...
The University of Washington Shallow Convection and Moist Turbulence Schemes and Their Impact on Climate Simulations with the Community Atmosphere Model
Publisher: American Meteorological Society
Abstract: This paper describes a new version of the University of Washington shallow cumulus parameterization. The new version includes improved treatments of lateral mixing rates into cumulus updrafts, the evaporation of precipitation ...
A New Moist Turbulence Parameterization in the Community Atmosphere Model
Publisher: American Meteorological Society
Abstract: A new moist turbulence parameterization is presented and implemented in the Community Atmosphere Model (CAM). It is derived from Grenier and Bretherton but has been heavily modified to improve its numerical stability and ...
Marine Low-Cloud Anomalies Associated with ENSO
Publisher: American Meteorological Society
Abstract: As a contribution to understanding the possible impact of altered climate regimes on marine clouds, and hence on cloud radiative forcing, ship-observed marine low clouds and precipitation frequency for individual seasons ...
A New Bulk Shallow-Cumulus Model and Implications for Penetrative Entrainment Feedback on Updraft Buoyancy
Publisher: American Meteorological Society
Abstract: A new refinement of Albrecht et al.?s bulk model for shallow-cumulus convection is presented. It is used to illuminate fundamental aspects of oceanic shallow-cumulus boundary layer structure, including updraft buoyancy and ...
Estimation of the Surface Heat Flux Response to Sea Surface Temperature Anomalies over the Global Oceans
Publisher: American Meteorological Society
Abstract: The surface heat flux response to underlying sea surface temperature (SST) anomalies (the surface heat flux feedback) is estimated using 42 yr (1956?97) of ship-derived monthly turbulent heat fluxes and 17 yr (1984?2000) ...
The Impact of Cloud Radiative Feedback, Remote ENSO Forcing, and Entrainment on the Persistence of North Pacific Sea Surface Temperature Anomalies
Publisher: American Meteorological Society
Abstract: The influence of cloud radiative feedback, remote ENSO heat flux forcing, and oceanic entrainment on persisting North Pacific sea surface temperature (SST) anomalies is investigated using a stochastically forced ocean mixed ...
Integrating Cloud Processes in the Community Atmosphere Model, Version 5
Publisher: American Meteorological Society
Abstract: his paper provides a description of the integrated representation for the cloud processes in the Community Atmosphere Model, version 5 (CAM5). CAM5 cloud parameterizations add the following unique characteristics to previous ...
A New Heuristic Lagrangian Marine Boundary Layer Cloud Model
Publisher: American Meteorological Society
Abstract: A new heuristic model of stratocumulus cloudiness in the inversion-capped marine boundary layer is developed and tested. The essential ingredient is a new method for predicting the statistical distribution of temperature ...