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Convectively Coupled Kelvin Waves in an Idealized Moist General Circulation Model
Publisher: American Meteorological Society
Abstract: The dynamics of convectively coupled Kelvin waves and their dependence on convection scheme parameters are studied within a simplified moist general circulation model. The model consists of the primitive equations on the ...
The Dynamics of Idealized Convection Schemes and Their Effect on the Zonally Averaged Tropical Circulation
Publisher: American Meteorological Society
Abstract: In this paper, the effect of a simple convection scheme on the zonally averaged tropical general circulation is examined within an idealized moist GCM to obtain broad classifications of the influence of convection on the ...
Midlatitude Static Stability in Simple and Comprehensive General Circulation Models
Publisher: American Meteorological Society
Abstract: The static stability of the extratropical troposphere is examined in two atmospheric general circulation models (GCMs) over idealized boundary conditions, with emphasis on the role of moisture in determining the midlatitude ...
Extratropical Influence on ITCZ Shifts in Slab Ocean Simulations of Global Warming
Publisher: American Meteorological Society
Abstract: ecent studies with climate models have demonstrated the power of extratropical forcing in causing the intertropical convergence zone (ITCZ) to shift northward or southward, and paleoclimate data support the notion that ...
Scaling Potential Evapotranspiration with Greenhouse Warming
Publisher: American Meteorological Society
Abstract: otential evapotranspiration (PET) is a supply-independent measure of the evaporative demand of a terrestrial climate?of basic importance in climatology, hydrology, and agriculture. Future increases in PET from greenhouse ...
ITCZ Width Controls on Hadley Cell Extent and Eddy-Driven Jet Position and Their Response to Warming
Publisher: American Meteorological Society
Abstract: The impact of global warming?induced intertropical convergence zone (ITCZ) narrowing onto the higher-latitude circulation is examined in the GFDL Atmospheric Model, version 2.1 (AM2.1), run over zonally symmetric aquaplanet ...
Terrestrial Aridity and Its Response to Greenhouse Warming across CMIP5 Climate Models
Publisher: American Meteorological Society
Abstract: he aridity of a terrestrial climate is often quantified using the dimensionless ratio of annual precipitation (P) to annual potential evapotranspiration (PET). In this study, the climatological patterns and greenhouse ...
A Gray-Radiation Aquaplanet Moist GCM. Part II: Energy Transports in Altered Climates
Publisher: American Meteorological Society
Abstract: A simplified moist general circulation model is used to study changes in the meridional transport of moist static energy by the atmosphere as the water vapor content is increased. The key assumptions of the model are gray ...
Response of the Zonal Mean Atmospheric Circulation to El Niño versus Global Warming
Publisher: American Meteorological Society
Abstract: The change in the zonal mean atmospheric circulation under global warming is studied in comparison with the response to El Niño forcing, by examining the model simulations conducted for the Fourth Assessment Report of the ...
Phase Speed Spectra and the Latitude of Surface Westerlies: Interannual Variability and Global Warming Trend
Publisher: American Meteorological Society
Abstract: The extratropical annular-mode-like atmospheric responses to ENSO and global warming and the internal variability of annular modes are associated with similar, yet distinct, dynamical characteristics. In particular, La ...