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Publications (13)
A three-dimensional wave-current model is used to investigate wave-circulations in a small estuarine bay and its impact on freshwater exchanges with the inner shelf, related to stratified river plumes dispersion. Modeled salinity fields exhibit a lower salinity surface layer due to river outflow, with typical depth of 1 m inside the
bay. The asymet...
La circulation des eaux dans le lagon sud-ouest Nouvelle-Calédonie est due à trois agents principaux : la marée, le vent local et le déferlement la houle par-dessus le récif-barrière.
L’effet de ces trois facteurs est étudié à l’aide de modèles numériques. Le modèle hydrodynamique MARS3D (Département Dyneco de l’Ifremer), est utilisé pour simuler l...
La circulation des eaux dans le lagon sud-ouest Nouvelle-Calédonie est due à trois agents principaux : la marée, le vent local et le déferlement la houle par-dessus le récif-barrière.
The south-west lagoon of New Caledonia is a wide semi-open coral reef lagoon bounded by an intertidal barrier reef and bisected by numerous deep inlets. This paper synthesizes findings from the 2000-2008 French National Program EC2CO-PNEC relative to the circulation and the transport of suspended particles in this lagoon. Numerical model developmen...
The south-west reef lagoon of New Caledonia is a semi-enclosed basin where, on first approximation, dominating sea state component corresponds to locally generated wind waves. This study aims to evaluate the ability of the wave model WAVEWATCH III to simulate wind wave distribution in this particular fetch-limited context, with a given parameterisa...
This paper presents the concentration and size distribution of suspended particles in the South-West Coral reef lagoon of the island of New Caledonia. Data are provided by filtration techniques, Optical BackScattering (OBS) measurements and in situ laser diffraction particle sizing. The concentration of suspended particles increased from reef to la...
Hydrodynamic modeling can be used to spatially characterize water renewal rates in coastal ecosystems. Using a hydrodynamic model implemented over the semi-enclosed Southwest coral lagoon of New Caledonia, a recent study computed the flushing lag as the minimum time required for a particle coming from outside the lagoon (open ocean) to reach a spec...
This thesis participates to a study that has been lead for several years by IRD which aims increased knowledge of hydrodynamics and transport of dissolved substances and particles on the South-West Lagoon of New Caledonia (SLNC). This work stands on field measurements and numerical modelling.
The first step of this thesis is an attempt to synthesis...
The pools of dissolved (DOM) and participate organic matter (POM) and of transparent exopolymeric particles (TEP) were studied along two sampling gradients in the lagoon of New Caledonia in relation to the residence time of the water masses. The efficiency of the transfer of material from the dissolved to the particulate phase via TEP formation, in...
Hydrodynamic modeling can be used to spatially characterize water renewal rates in coastal ecosystems. Using a hydrodynamic model implemented over the semi-enclosed Southwest coral lagoon of New Caledonia, a recent study computed the flushing lag as the minimum time required for a particle coming from outside the lagoon (open ocean) to reach a spec...
Hydrodynamic time parameters (HTs) in a semi-opened aquatic ecosystem are synthetic indicators offering the opportunity to bring out the links between its physical functioning and its biology. The generic term ‘‘residence time’’ is frequently used through literature to mention HTs resulting in various calculation methods. This article presents diff...
