Showing papers in "Ocean Modelling in 2012"

TL;DR: A high-order adaptive time-stepping TVD solver for the fully nonlinear Boussinesq model of Chen (2006), extended to include moving reference level as in Kennedy et al. (2001).

TL;DR: NHWAVE as mentioned in this paper is a shock-capturing non-hydrostatic model for simulating wave refraction, diffraction, shoaling, breaking and landslide-generated tsunami in finite water depth.

TL;DR: In this paper, a two-way nesting approach for split-explicit, free surface ocean models is presented, which is fully consistent with ROMS parallel capabilities on both shared and distributed memory architectures.

TL;DR: In this article, a new wave-current coupling component utilizes a depth dependent radiation stress approach and uses the vortex force formalism to simulate the effect of waves on circulation and vice versa.

TL;DR: In this paper, a new storm surge modeling system was developed, based on the unstructured-grid circulation model SELFE and the spectral wave model WaveWatchIII, to hindcast and analyze the storm surge associated with Xynthia, a mid-latitude depression that severely hit the French central part of the Bay of Biscay on the 27-28th of February 2010.

TL;DR: The Data Interpolating Variational Analysis (DIVA) as mentioned in this paper is a method designed to interpolate irregularly-spaced, noisy data onto any desired location, in most cases on regular grids.

TL;DR: In this paper, the sensitivity of an idealized bio-physical model of seasonally varying subtropical and subpolar gyres to increased horizontal resolution is presented, showing a global decrease in phytoplankton abundance of ∼10-20% as the resolution is refined.

TL;DR: In this article, a coupled ocean-atmosphere-wave-sediment transport (COAWST) model was used to investigate atmosphere-ocean-wave interactions in November 2009 during Hurricane Ida and its subsequent evolution to Nor’Ida.

TL;DR: In this article, a global diagnostic of spurious dianeutral transport in ocean models is presented, whose evolution arises solely through transport between density classes and whose evolution is directly proportional to the lateral grid Reynolds number (Re Δ ).

TL;DR: In this article, the authors developed an analysis framework to identify how physical processes, as represented in ocean climate models, impact the evolution of global mean sea level, and found that surface heating is the dominant term affecting sea level arising from buoyancy fluxes, contributing to a net positive tendency to global Mean Sea level, largely due to low latitude heating and because the thermal expansion coefficient is much larger in the tropics than high latitudes.

TL;DR: In this article, the tracer advection, the surface boundary layer parameterization and the vertical grid of a σ-coordinate model can achieve an accurate representation of the oceanic interior and mixed-layer dynamics.

TL;DR: In this paper, a series of hurricane waves and water levels were computed using the SWAN+ADCIRC models for a suite of 643 synthetic storm scenarios, while local wave runup was evaluated along a series-of-1D transects using the phase-resolving model Bouss1D.

TL;DR: In this article, a probabilistic methodology is applied to identify optimally coherent structures associated with Agulhas rings, within a time varying velocity field in the South Atlantic Ocean, as simulated by an eddy-permitting ocean general model.

TL;DR: In this paper, the response of Chesapeake Bay to forcing from two hurricanes is investigated using an unstructured-grid three-dimensional hydrodynamic model SELFE, and the model results agree reasonably well with field observations of water level, velocity, and salinity.

TL;DR: In this paper, the performance of the Weather Research and Forecast (WRF) mesoscale model in the ocean surface wind simulation was assessed and evaluated under different initial and boundary forcing conditions.

TL;DR: In this article, the authors present a coastal ocean circulation model, suitable for downscaling from the deep ocean, across the continental shelf and into the estuaries, by nesting the unstructured grid, Finite Volume Coastal Ocean Model (FVCOM, inner model) into the structured grid, Global Hybrid Coordinate Model (HYCOM, outer model).

TL;DR: In this article, a 3D unstructured grid morphodynamic modeling system, MORSELFE, is proposed to simulate short-term morphological evolutions of estuaries and sandy rivers (temporal scale of days to months).

TL;DR: In this article, a 3D oceanic Lagrangian coherent structures (LCSs) in the Benguela upwelling region obtained from an output of the regional ocean modeling system (ROMS) were studied.

TL;DR: In this paper, a hybrid approach was proposed by combining deterministic Lagrangian coherent structures (LCS) to compute transport over the mesoscale range with statistical Lagrangians subgridscale (LSGS) models for the underresolved submesoscale motions.

TL;DR: In this article, a reentrant channel configuration of the MIT General Circulation Model that approximates the Antarctic Circumpolar Current is used to examine the issues of spurious diapycnal mixing in frontal flow.

TL;DR: In this paper, a series of large eddy simulations is used to assess the transport properties of multi-scale ocean flows and the authors compare scale-dependent measures of Lagrangian relative dispersion and the evolution of passive tracer releases in models containing only submesoscale mixed layer instabilities and those containing mixed-layer instabilities modified by deeper, baroclinic mesoscale disturbances.

TL;DR: In this paper, a numerical hydrodynamic simulation of the Texas-Louisiana continental shelf circulation is compared with hydrographic and moored observations of temperature, salinity, and current velocity.

TL;DR: Using in situ sea surface temperature (SST) data and MODIS/TERRA SST, the monthly AVHRR Pathfinder (version 5.0 and 5.2) SST product was evaluated within the four main Eastern Boundary Upwelling Systems as discussed by the authors.

TL;DR: In this article, a numerical solution for an idealized double-gyre is used to investigate the sensitivity of ocean dynamics and passive tracer advection to horizontal resolution (Dx) in a mesoscale eddy rich regime.

TL;DR: In this article, several methods, derived from the Laplacian approach of Marsaleix et al. (2008), are presented as an alternative to the Leap Frog time stepping scheme.

TL;DR: In this paper, the sensitivity of the global sea-ice distribution in the Australian Climate Ocean Model (AusCOM) to a range of parameter values related to sea ice physics was explored.

TL;DR: In this article, the authors studied the impact of assimilation of sea surface velocity fields observed by a set of high-frequency (HF) radars using a three-dimensional ocean circulation model configured along the Oregon coast.

TL;DR: In this article, a dike-groyne module is developed and implemented into the unstructured-grid, three-dimensional primitive equation finite-volume coastal ocean model (FVCOM) for the study of the hydrodynamics around human-made construction in the coastal area.

TL;DR: In this paper, the effect of a summer Mistral event on the Ligurian and Tyrrhenian Seas in the north-western Mediterranean is discussed, using a coupled numerical model and satellite and in situ observations.

TL;DR: In this article, an ensemble optimal interpolation (EnOI) data assimilation system was applied to a high-resolution coastal ocean model of south-east Tasmania, Australia, which is characterised by a complex coastline with water masses influenced by riverine input and the interaction between two offshore current systems.