Results 11 to 20 of about 624,231 (327)

Solar Surface Convection [PDF]

open access: yesLiving Reviews in Solar Physics, 2009
We review the properties of solar convection that are directly observable at the solar surface, and discuss the relevant underlying physics, concentrating mostly on a range of depths from the temperature minimum down to about 20 Mm below the visible ...
Nordlund Åke   +2 more
doaj   +4 more sources

Mesoscale cellular convection: is it convection? [PDF]

open access: yesTellus A: Dynamic Meteorology and Oceanography, 1985
The three convective instability models that aim to account for the broad aspect ratio of mesoscale cellular convection (MCC) are compared with a simple analytical version of the mesoscale entrainment instability (MEI) model proposed by Fiedler (1984). The inadequacies of the convective models are demonstrated.
Brian H. Fiedler, Brian H. Fiedler
openaire   +2 more sources

Convection On the Edge [PDF]

open access: yesJournal of Advances in Modeling Earth Systems, 2019
AbstractDeep convection over tropical oceans often appears intensified at the edge of convectively active regions, both in idealized studies and in observations. This edge intensification of convection is studied in detail here, using the steady state of a radiative‐convective equilibrium study, marked by a single convective cluster with deep ...
J. M. Windmiller, C. Hohenegger
openaire   +4 more sources

Fortran Coarray Implementation of Semi-Lagrangian Convected Air Particles within an Atmospheric Model

open access: yesChemEngineering, 2021
This work added semi-Lagrangian convected air particles to the Intermediate Complexity Atmospheric Research (ICAR) model. The ICAR model is a simplified atmospheric model using quasi-dynamical downscaling to gain performance over more traditional ...
Soren Rasmussen   +3 more
doaj   +1 more source

Theories of convection and the spectrum of turbulence in the solar photosphere [PDF]

open access: yes, 2006
Classical theories of turbulence do not describe accurately inertial range scaling laws in turbulent convection and notably fail to model the shape of the turbulent spectrum of solar photospheric convection.
Calzavarini   +6 more
core   +3 more sources

WRF Model Sensitivity to Spatial Resolution in Singapore: Analysis for a Heavy Rain Event and General Suitability

open access: yesAtmosphere, 2022
Granularity of the grid (both horizontally and vertically) is a key consideration when conducting localised Numerical Weather Prediction (NWP) modelling. Generally speaking, an NWP model with a finer grid can explicitly resolve more processes and require
Robert Huva, Guiting Song
doaj   +1 more source

Development of convection along the SPCZ within a Madden-Julian oscillation [PDF]

open access: yes, 1996
A subtropical Rossby wave propagation mechanism is proposed to account for the poleward and eastward progression of intraseasonal convective anomalies along the South Pacific Convergence Zone (SPCZ) that is observed in a significant proportion of Madden ...
Ardanuy   +25 more
core   +2 more sources

Determination of the heat transfer coefficient by convection, according to shape of the baffles (solar air collector)

open access: yesRevue des Énergies Renouvelables, 2022
This experimental study and mathematical modelling aim to improve the heat transfer by convection in different cases of transversal baffles inside a duct of a solar air collector.
Zouhair Aouissi   +5 more
doaj   +1 more source

Converging and diverging convection around axisymmetric magnetic flux tubes [PDF]

open access: yes, 2006
A numerical model of idealized sunspots and pores is presented, where axisymmetric cylindrical domains are used with aspect ratios (radius versus depth) up to 4.
A. M. Rucklidge   +26 more
core   +1 more source

A benchmark study on mantle convection in a 3-D spherical shell using CitcomS [PDF]

open access: yes, 2008
As high-performance computing facilities and sophisticated modeling software become available, modeling mantle convection in a three-dimensional (3-D) spherical shell geometry with realistic physical parameters and processes becomes increasingly feasible.
Gurnis, Michael   +4 more
core   +1 more source

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