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The Tropical Mixed Layer and Cumulus Parameterization
Publisher: American Meteorological Society
Abstract: A model of the convectively driven mixed layer is used to interpret BOMEX Phase III data. It is concluded that the compensating downdrafts and the moisture transports due to trade cumulus must be included explicitly in any ...
Unstable Coupled Atmosphere–Ocean Basin Modes in the Presence of a Spatially Varying Basic State
Publisher: American Meteorological Society
Abstract: The fundamental modes of oscillation of a coupled atmosphere?ocean basin system in the presence of a spatially varying oceanic basic state are investigated by formulating and solving an eigenvalue problem, thereby extending ...
Nonlinear Effects in Coupled Atmosphere-Ocean Basin Modes
Publisher: American Meteorological Society
Abstract: The effect of nonlinearities on a previously investigated coupled atmosphere?ocean basin mode is examined. The nonlinearity in the thermodynamic equation for sea surface temperature arises mainly from the dependence of ...
On the Role of Equatorial Ocean Modes in the ENSO Cycle
Publisher: American Meteorological Society
Abstract: In order to test certain aspects of the ENSO mechanism proposed by Suarez and Schopf and by Battisti and Hirst, we force a shallow water ocean with 28 years of observed (FSU) winds and decompose both the atmospheric forcing ...
Thermohaline Oscillations Induced by Strong Steady Salinity Forcing of Ocean General Circulation Models
Publisher: American Meteorological Society
Abstract: A series of numerical experiments is conducted with a three-dimensional ocean general circulation model and a two-dimensional counterpart both designed for efficient integration over diffusive (millennial) time scales. ...
Cumulus Parameterization and CISK
Publisher: American Meteorological Society
Abstract: Arakawa's recent parameterization of the effects of a cumulus ensemble on the large-scale environment is applied to the problem of conditional instability of the second kind (CISK). In particular, Charney's linear, two-level, ...
Dynamics and Heat Balance of Steady Equatorial Undercurrents
Publisher: American Meteorological Society
Abstract: A two-dimensional (in a vertical and meridional plane) model for steady equatorial undercurrents is described. Compared to the primitive equation model, the zonal pressure gradient and associated zonal temperature gradients ...
The Role of Mixed Boundary Conditions in Numerical Models of the Ocean's Climate
Publisher: American Meteorological Society
Abstract: Several simple numerical experiments are conducted, using both single- and double-hemisphere ocean basins under symmetric steady forcing to study de ocean's thermohaline circulation. It is shown that a stable steady state ...
Interdecadal Thermohaline Oscillations in a Sector Ocean General Circulation Model: Advective and Convective Processes
Publisher: American Meteorological Society
Abstract: Oceanic interdecadal thermohaline oscillations are investigated with a coarse-resolution version of the Geophysical Fluid Dynamics Laboratory Modular Ocean Model. The geometry of the model is a box with a depth of 5000 m ...