Results 221 to 230 of about 12,649 (264)

Deep Convection in the Ocean

1997
Abstract : Our long-term objective is to understand how deep convection, induced by strong buoyancy forcing at the ocean surface, influences the ocean circulation through convective plumes and geostrophic eddies.
Sonya A. Legg, James C. McWilliams
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Rotating deep annulus convection

Tellus, 1969
Sixteen meridian-plane temperature profiles were obtained in the upper symmetric regime of a differentially heated rotating annulus of water by means of a thermocouple probe. This probe, though made as small as practicable, disturbed the flow field, and the nature of the disturbance and its correction is discussed.
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Modeling Open-Ocean Deep Convection

1997
Abstract : 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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Steady Convection in Deep Compressible Layers

Astrophysics and Space Science, 1998
It 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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Deep Convective Regimes

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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Integral Effects of Deep Convection

Journal of Physical Oceanography, 1995
Abstract The large-scale, integral effect of convective elements (plumes) constituting an open-ocean chimney is investigated both theoretically and with a plume-resolving numerical model. The authors consider an initially homogeneous “patch” of ocean of depth H, with Coriolis parameter f, in which buoyancy is lost from the surface at a rate B.
Uwe Send, John Marshall
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The Deep Convection Approximation

1990
As 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 Convective Rotational Solitary Waves and Mesoscale Convective Complexes

Journal of the Atmospheric Sciences, 1987
Abstract As an extension of CCI (conditional convective instability) theory, three-dimensional, deep and steady convective waves in a barotropic basic flow with an embedded moist zone were studied via perturbation methods. The basic state is assumed to be slightly supercritical to the gravest two-dimensional CCI mode which gives the cross-sectional ...
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Solar Activity and Deep Convection Modeling

Solar Physics, 2012
We suggest from synoptic charts of radial magnetic field and intensities of spectral lines (Fe i, He ii, and Fe ix/x) over Carrington rotations 1942 – 2050 that deep convective layers control the pattern of large-scale solar activity. A new result is a Kolmogorov-type energy spectrum of the longitudinal variations of solar activity.
O. V. Arkhypov, O. V. Antonov, M. L. Khodachenko   +2 more
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Deep convection drives oceanic overturning

Physics Today
Research that combines fluid dynamics and climate science is uncovering the inner workings of the North Atlantic’s overturning circulation. Future changes to that circulation system could trigger major disruptions to global weather patterns.
Gayen, Bishakhdatta, Klocker, Andreas
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