Papers by Guillaume Riflet
Abstract. A three-level nested, pre-operational model of the portuguese coastal circulation is im... more Abstract. A three-level nested, pre-operational model of the portuguese coastal circulation is implemented with MOHID[1]. The Mercator large-scale operational North-Atlantic ocean model[2] provides initial and one-way open boundary conditions, while the MM5 mesoscale regional atmospheric forecasting model, forced by ECMRWF data, provides surface forcing. Tide is forced by the FES2004[3] tidal atlas. The open boundary conditions are based in the Flather[4] radiation scheme (sea surface height and barotropic velocity) and in a Flow Relaxation Scheme[5] (velocity, temperature and salinity). The spin up of the model is done connecting gradually the forcing terms. The results show, on a weekly-basis, a gain in spatial variability at the finer scale. Wind driven currents elaborate over the Mercator solution, providing finer scale realistic results at the surface when compared with clear sky remote-sensing SST imagery, showing fronts formation, cold finger-like structures and upwelled jets...
Ocean Science …, 2012
The paper presents the structure and application of a regional scale operational modelling tool f... more The paper presents the structure and application of a regional scale operational modelling tool for the West Iberian coast. The forecasting suite includes nested hydrodynamic models forced with up-to-date meteorological forecast data and large scale ...
International Conference on Mathematics and Continuum Mechanics, Feb 19, 2008
This paper describes the on going efforts of IST (Technical University of Lisbon) and the company... more This paper describes the on going efforts of IST (Technical University of Lisbon) and the company Hidromod in implementing a hydrodynamic and biogeochemical operational model of the Portuguese coast. It is presented the methodology used to downscale lowfrequency pre-operational solutions (eg Mercator) to the Portuguese coast scale. A special attention is given to the open boundaries conditions and to the model spin up. The methodology potential is illustrated describing the main applications done so far. There ...
univ-ubs.fr
V European Conference on Computational Fluid Dynamics ECCOMAS CFD 2010 JCF Pereira and A. Sequeir... more V European Conference on Computational Fluid Dynamics ECCOMAS CFD 2010 JCF Pereira and A. Sequeira (Eds) Lisbon, Portugal,14-17 June 2010 ... DOWNSCALING A LARGE-SCALE OCEAN-BASIN MODEL: AN INTERCOMPARISON EXERCISE IN THE BAY OF BISCAY
CMNE/CILAMCE 2007 Porto, 13 a 15 de Junho, 2007 c APMTAC, Portugal 2007 ... A SIMPLE PRE-OPERATIO... more CMNE/CILAMCE 2007 Porto, 13 a 15 de Junho, 2007 c APMTAC, Portugal 2007 ... A SIMPLE PRE-OPERATIONAL MODEL FOR THE PORTUGUESE COAST ... Guillaume Riflet1∗, Paulo C. Leitao2, Rodrigo Fernandes1 and Ramiro Neves1 ... 1: MARETEC DEMecanica ...
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Papers by Guillaume Riflet