Three-dimensional modelling of a tidal channel: The Espinheiro Channel (Portugal)

Vaz, Nuno; Dias, João Miguel; Leitão, Paulo C.

doi:10.1016/j.csr.2007.12.005

Cited by 62 publications

(26 citation statements)

References 17 publications

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“…MOHID is a 3-D baroclinic finite volumes numerical model, designed for coastal and estuarine shallow applications. Cancino and Neves (1998) applied the hydrodynamic and sediment suspension model to Sado Estuary (Portugal); Taboada et al (1998) evaluated the seasonal variations in residual patterns at Ria de Vigo (NW Spain) with a 3-D baroclinic model; Martins et al (1999) performed numerical simulations to study the internal tides; studied the slope current along the Western European Margin; Martins et al (2001) modeled the Sado Estuary (Portugal) using a new generic vertical discretization approach; Santos et al (2002) developed a circulation model application for the European ocean margin; Leitão et al (2005) modeled the Algarve coastal circulation during July 2004 using a downscaling approach; Vaz et al (2007) applied the 2-D model to a mesotidal temperate coastal lagoon (Ria de Aveiro lagoon, Portugal); Vaz et al (2009) performed a 3-D modeling application of a tidal channel (Espinheiro Channel, Portugal); Malhadas et al (2009a) analyzed the effect of coastal waves on sea level in Óbidos Lagoon (Portugal); and Malhadas et al (2009b) evaluated the effect of the bathymetric changes on the hydrodynamics and RT of the Óbidos Lagoon (Portugal).…”

Section: Modeling Effortsmentioning

confidence: 99%

Influence of tide and waves on water renewal in Óbidos Lagoon, Portugal

Malhadas¹,

Neves²,

Leitão

et al. 2009

Ocean Dynamics

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The role of oceanic tide, wind stress, freshwater river inflows, and waves in the long-term circulation and residence time in Óbidos Lagoon is investigated using a sensitivity analysis carried out by means of a two-dimensional model. MOHID modeling system coupled to Steady-State Spectral Wave model for simulate Óbidos Lagoon circulation were implemented. For residence time calculus, a Lagrangian transport model was used. Tidal forcing is shown to be the dominant forcing, although storm waves must be considered to simulate accurately the long-term circulation. Tidal forcing enhances a spatial distribution in water residence time. Renewal time scales varies from values of 2 days in the near-ocean areas and 3 weeks in the inner areas. Freshwater river inflows decrease the residence time, while waves increase. In heavy rain periods, the water residence time decreases by about 40% in the upper lagoon. When wave forcing is considered, the residence time increases between 10% and 50% depending on lagoon area. The increase in residence time is explained by the sea level rise within lagoon (~1 m above average lagoon sea level) during storm wave periods. Average residence time is 16 days for tidal forcing, 9 days when the rivers are included (wet period), and 18 days when the waves are considered.

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Section: Modeling Effortsmentioning

confidence: 99%

Influence of tide and waves on water renewal in Óbidos Lagoon, Portugal

Malhadas¹,

Neves²,

Leitão

et al. 2009

Ocean Dynamics

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“…This hydrodynamic model has been applied in several studies and on different spatial scales, from small scales such as those of estuarine regions and coastal lakes, (MARTINS et al, 2001;MONTERO et al, 1999;VAZ et al, 2005;MALHADAS et al, 2009;VAZ et al, 2009), to larger scales such as those of platforms and basins (SANTOS et al, 2002;RIFLET et al, 2010).…”

Section: The Physical and Mathematical Modelmentioning

confidence: 99%

Tide assessment for the continental shelf situated in the southwestern Atlantic between the latitudes 19.8ºS and 21.2ºS

et al. 2016

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The astronomical tide was numerically simulated by the MOHID model for the South-Central Region of Espírito Santo State (Brazil), between latitudes 19.8ºS and 21.2ºS. The grid nesting technique was used to transpose the boundary conditions from the larger domain to a more refined local domain (spatial resolution around 450 m), with tidal harmonics provided by the TPXO tide inverse model as boundary conditions for the larger domain. Results from the numerical model were compared with both the pre-existing tide harmonics and the harmonics calculated from measured data. From the maps of phase, amplitude, tidal ellipses and residual currents the main tidal kinematic characteristics in the study area were described. On the continental shelf, the results showed that the physiography and bathymetry of the region play an important role in the distribution of tidal co-phases, co-amplitudes, ellipses and residual currents. The MOHID model was able to reproduce satisfactorily the astronomical tide and thus can be used to study the behaviour of the tidal propagation in continental shelf areas.

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“…MOHID has the ability to simulate flows over complex bathymetries and it has been widely used to simulate flows ranging from shallow coastal systems (Vaz et al, 2009) to deep ocean environments (Riflet et al, 2008). The model uses Navier-Stokes primitive equations with Boussinesq and hydrostatic assumptions.…”

Section: Hydrodynamic Modelmentioning

confidence: 99%

High resolution tsunami modelling for the evaluation of potential risk areas in Setúbal (Portugal)

Ribeiro

Silva

Leitão

2011

Nat. Hazards Earth Syst. Sci.

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Abstract. The use of high resolution hydrodynamic modelling to simulate the potential effects of tsunami events can provide relevant information about the most probable inundation areas. Moreover, the consideration of complementary data such as the type of buildings, location of priority equipment, type of roads, enables mapping of the most vulnerable zones, computing of the expected damage on manmade structures, constrain of the definition of rescue areas and escape routes, adaptation of emergency plans and proper evaluation of the vulnerability associated with different areas and/or equipment.Such an approach was used to evaluate the specific risks associated with a potential occurrence of a tsunami event in the region of Setúbal (Portugal), which was one of the areas most seriously affected by the 1755 tsunami.In order to perform an evaluation of the hazard associated with the occurrence of a similar event, high resolution wave propagation simulations were performed considering different potential earthquake sources with different magnitudes. Based on these simulations, detailed inundation maps associated with the different events were produced. These results were combined with the available information on the vulnerability of the local infrastructures (building types, roads and streets characteristics, priority buildings) in order to impose restrictions in the production of high-scale potential damage maps, escape routes and emergency routes maps.

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Three-dimensional modelling of a tidal channel: The Espinheiro Channel (Portugal)

Cited by 62 publications

References 17 publications

Influence of tide and waves on water renewal in Óbidos Lagoon, Portugal

Influence of tide and waves on water renewal in Óbidos Lagoon, Portugal

Tide assessment for the continental shelf situated in the southwestern Atlantic between the latitudes 19.8ºS and 21.2ºS

High resolution tsunami modelling for the evaluation of potential risk areas in Setúbal (Portugal)

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