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Estimation of the functional form of subgrid-scale schemes using ensemble-based data assimilation: a simple model experiment
(Wiley, 2016-10-02)
Oceanic and atmospheric global numerical models represent explicitly the large‐scale dynamics while the smaller‐scale processes are not resolved, so that their effects in the large‐scale dynamics are included through ...
Estimation of the functional form of subgrid-scale parametrizations using ensemble-based data assimilation : a simplemodel experiment
(Royal Meteorological Society, 2016)
Oceanic and atmospheric global numerical models represent explicitly the large-scale dynamics while the smaller-scale processes are not resolved, so that their effects in the large-scale dynamics are included through ...
Lagrangian scheme to model subgrid-scale mixing and spreading in heterogeneous porous media
(American Geophysical Union, 2017)
Small-scale heterogeneity of permeability controls spreading, dilution, and mixing of solute
plumes at large scale. However, conventional numerical simulations of solute transport are unable to resolve
scales of heterogeneity ...
Offline parameter estimation using EnKF and maximum likelihood error covariance estimates: application to a subgrid-scale orography parametrization
(John Wiley & Sons Ltd, 2015-01)
Recent work has shown that the parameters controlling parametrizations of the physical processes in climate models can be estimated from observations using filtering techniques. In this article, we propose an offline ...
Estimation of optimal gravity wave parameters for climate models using data assimilation
(John Wiley & Sons Ltd, 2011-09)
There is a current need to constrain the parameters of gravity wave drag schemes in climate models using observational information instead of tuning them subjectively. In this work, an inverse technique is developed using ...
WRF sensibility to microphysics and planetary boundary layer at micro-catchment scale: the case of the Quinuas catchment in the tropical andes of Ecuador
(2018-03-29)
Reliable high-resolution forecasts of precipitation are necessary to improve hydrological models forecasting. This is important in mountain regions, where complex convective and orographic processes occur. The present study ...
Fully coupled "online" chemistry within the WRF model
(PERGAMON-ELSEVIER SCIENCE LTD, 2005-12)
A fully coupled "online" Weather Research and Forecasting/Chemistry (WRF/Chem) model has been developed. The air quality component of the model is fully consistent with the meteorological component; both components use the ...
Numerical simulation of the flow around the ahmed vehicle model
(Planta Piloto de Ingeniería Química, 2009-10)
The unsteady flow around the Ahmed vehicle model is numerically solved for a Reynolds number of 4.25 million based on the model length. A viscous and incompressible fluid flow of Newtonian type governed by the Navier-Stokes ...
Numerical Simulations of the Flow Around a Spinning Projectile in Subsonic Regime
(Planta Piloto de Ingeniería Química, 2008-12)
The unsteady flow around a 155 mm projectile governed by the Navier-Stokes (NS) equations is numerically solved with a Large Eddy Simulation (LES) scheme, together with the SubGrid Scale (SGS) solved by a Smagorinsky model ...
The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) - Part 1: Model description and evaluation
(COPERNICUS PUBLICATIONS, 2009)
We introduce the Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS). CATT-BRAMS is an on-line transport model fully consistent with the simulated ...