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The Parameterization of Deep Convection
1997Insights into the parameterization of convection from two decades of diagnostic studies are reviewed. The life cycle of a convective mesosystem mass flux is described using day 245 from the GARP Atlantic Tropical Experiment as example. The thermodynamic differences between non-precipitating convection and precipitating convection are discussed, as well
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Steady Convection in Deep Compressible Layers
Astrophysics and Space Science, 1998It is known from the literature that the standard mixing-length model of convection traditionally used in astrophysics is based on an analogy with the kinetic theory of gases. Simulations of steady convection do not find eddies of order of local scale height, but rather single cells extending over several scale heights from top to bottom of the layer ...
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Modeling ocean deep convection
Ocean Modelling, 2004Abstract The goal of this study is to assess models for Deep Convection with special emphasis on their use in coarse resolution ocean general circulation models . A model for deep convection must contain both vertical transport and lateral advection by mesoscale eddies generated by baroclinic instabilities.
V.M. Canuto +5 more
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1994
Abstract Over some tropical regions and middle-latitude continents during the warmer part of the year, deep convective clouds dominate the thermodynamic structure of the atmosphere. Unlike trade cumuli, deep convection is associated with plentiful precipitation and, therefore, a net release of latent heat integrated through the depth of ...
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Abstract Over some tropical regions and middle-latitude continents during the warmer part of the year, deep convective clouds dominate the thermodynamic structure of the atmosphere. Unlike trade cumuli, deep convection is associated with plentiful precipitation and, therefore, a net release of latent heat integrated through the depth of ...
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The Deep Convection Approximation
1990As has already been noted several times, atmospheric flows are low Mach number flows: M∞2 = U02/γRT∞(0) ≪ 1. Because of this, if we wish to “avoid” the constraint (8.19) imposed in the Boussinesq approximation, it becomes necessary to analyze flows with very low Froude numbers since [see (2.63) and (2.65)] $${\rm{Bo = }}\varepsilon \frac{{\gamma ...
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Deep Convection and the Solar Chromosphere
Solar Physics, 2012The manifestation of convection in deep layers of the Sun has been found in the dynamics of solar surface activity (Arkhypov, Antonov, and Khodachenko in Solar Phys.270, 1, 2011). Some chromospheric phenomena could be connected with deep convection, too. We justify this hypothesis with sunspot, Ca ii, Hα, and millimeter-wave radio data.
O. V. Arkhypov +2 more
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On deep convection in the Weddell Gyre
Deep Sea Research Part A. Oceanographic Research Papers, 1988In March 1983 a region (horizontal scale > 200 km) of convectively cooled and freshened Weddell Deep Water (γmax < 0°C) was observed central Weddell Sea. The extremely low salt and nutrient contents of the upper 1000 m of the cold spot suggest that its initial water column originated from the Antarctic Coastal Current.
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Geophysics of Deep Convection and Deep Water Formation in Oceans
1991Abstract An important task for geophysicists studying deep convection and deep water formation in the ocean is to investigate various physical mechanisms generating vertical circulation. Two major types of such mechanisms are available so far, namely, thermodynamical instability, which generates convection and mixing due largely to surface buoyancy ...
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Modeling Open-Ocean Deep Convection
1997Abstract : LONG-TERM GOALS. To understand the convective process in the ocean, develop numerical models to study it, and so improve the representation of convection in ocean circulation models. OBJECTIVES. To understand the relative importance of vertical mixing by convection and lateral advection by geostrophic eddies in setting the volume and ...
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Restratification after Deep Convection
Journal of Physical Oceanography, 1997Abstract An important, yet poorly understood, aspect of the water mass transformation process in the ocean is the manner in which the convected fluid, once formed, is accommodated and drawn into the general circulation. Following “violent mixing” in the open ocean that creates a deep homogenous body of fluid, restratification of the surface (∼500 m ...
Helen Jones, John Marshall
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