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RISA Global Low-Order Spectral General Circulation Model. Part II: Diagnosis of the Seasonal Energetics
Publisher: American Meteorological Society
Abstract: The purpose of this paper is to document the seasonal variation of the atmospheric energy cycle simulated by a low-resolution general circulation model in order to assess the model's strengths and weaknesses and better ...
A Note on the Effect of Horizontal Momentum Fluxes by Unresolved Synoptic-Scale Eddies in a Low-Resolution Spectral General Circulation Model
Publisher: American Meteorological Society
Abstract: Two long-term simulations of a low-resolution spectral general circulation model (Otto-Bliesner et al., 1982) have been made. The single difference between these two runs is that in one (CONTROL) the horizontal flux of ...
Thermally-Forced Mean Mass Circulations in the Northern Hemisphere
Publisher: American Meteorological Society
Abstract: A diagnostic approach to infer three-dimensional distribution of the thermally-forced, time-averaged horizontal mass and energy transport (Johnson and Townsend, 1981), which was previously applied in the Southern Hemisphere ...
Tropical Pacific Variability in the NCAR Climate System Model
Publisher: American Meteorological Society
Abstract: A 300-yr simulation with the NCAR Climate System Model (CSM), version 1, captured only ?60% of the observed ENSO signal and exaggerated the interannual variability of SST in the western tropical Pacific. Here, a simulation ...
A Global Low-order Spectral General Circulation Model. Part 1: Formulation and Seasonal Climatology
Publisher: American Meteorological Society
Abstract: A global, spectral, primitive equation model is developed to study the seasonal climatology of the large-scale features of the atmosphere. The model resolution is five equally-spaced sigma levels in the vertical and ...
The Effects of Topography on the Atmospheric Energetics in. a Low-Resolution General Circulation Model
Publisher: American Meteorological Society
Abstract: An analysis is made of the effect of orography on the atmospheric energetics in a low-resolution general circulation model to determine the temporal and scale dependency of these effects. The numerical model is a global, ...
The Effects of Improved Parameterizations for Orography, Snowcover, Surface Fluxes and Condensational Processes on the Climate of a Low Resolution GCM
Publisher: American Meteorological Society
Abstract: The sensitivity of a low resolution, spectral general circulation model (GCM) to specification of physical processes is examined using a new version of the model with refined parameterizations. Specific refinements in ...
Global-Scale Energy and Freshwater Balance in Glacial Climate: A Comparison of Three PMIP2 LGM Simulations
Publisher: American Meteorological Society
Abstract: Three coupled atmosphere?ocean general circulation model (AOGCM) simulations of the Last Glacial Maximum (LGM: about 21 000 yr before present), conducted under the protocol of the second phase of the Paleoclimate Modelling ...
Sensitivity to Glacial Forcing in the CCSM4
Publisher: American Meteorological Society
Abstract: esults are presented from the Community Climate System Model, version 4 (CCSM4), simulation of the Last Glacial Maximum (LGM) from phase 5 of the Coupled Model Intercomparison Project (CMIP5) at the standard 1° resolution, ...
Climate Sensitivity of Moderate- and Low-Resolution Versions of CCSM3 to Preindustrial Forcings
Publisher: American Meteorological Society
Abstract: Preindustrial (PI) simulations of the Community Climate System Model version 3 (CCSM3) at two resolutions, a moderate and a low resolution, are described and compared to the standard controls for present-day (PD) simulations. ...