An unstructured grid, finite volume, three‐dimensional (3‐D) primitive equation coastal ocean model (FVCOM) has been developed for the study of and estuarine circulation by Chen et al. (2003a). The volume method used in this combines advantage element methods geometric flexibility difference simple discrete computation. Currents, temperature, salinity are computed using an integral form equations, which provides a better representation conservative laws mass, momentum, heat. Detailed...

Physical mechanisms for the summertime offshore detachment of Changjiang Diluted Water (CDW) into East China Sea are examined using high‐resolution, unstructured‐grid, Finite‐Volume Coastal Ocean Model (FVCOM). The model results suggest that isolated low salinity water lens detected west Cheju Island can be formed by (1) a large‐scale adjustment flow field to discharge and (2) anticyclonic eddies as result baroclinic instability CDW front. Adding intensifies clockwise vorticity subsurface...

[1] The unstructured-grid, Finite-Volume Community Ocean Model (FVCOM) was used to simulate the tides in Gulf of Maine (GoM) and New England Shelf (NES) for homogeneous summer stratified conditions. FVCOM captures near-resonant nature semidiurnal tide energy flux GoM complex dynamics governing NES. Stratification has limited impact on tidal elevation, but can significantly modify current profile. Internal are energetic regions over steep bottom topography, their contribution total is only...

A spherical coordinate version of the unstructured grid 3‐D FVCOM (finite volume coastal ocean model) has been applied to Arctic Ocean simulate tides with a horizontal resolution ranging from 1 km in near‐coastal areas 15 deep ocean. By accurately resolving irregular coastlines and bathymetry regions, this model reproduces diurnal (K O ) semidiurnal (M 2 S tidal wave dynamics captures complex structure along coast, particularly narrow straits Canadian Archipelago. The simulated parameters...

The unstructured grid finite volume coastal ocean model (FVCOM) system has been expanded to include nonhydrostatic dynamics. This addition uses the factional step method with both split mode explicit and semi‐implicit schemes. method, combined a correction of final free surface from its intermediate value inclusion effects, efficiently reduces numerical damping thus ensures second‐order accuracy solutions local/global conservation. Numerical experiments have made fully validate FVCOM,...

Abstract The Connecticut River is a tidal salt wedge estuary, where advection of sharp salinity gradients through channel constrictions and over steeply sloping bathymetry leads to spatially heterogeneous stratification mixing. A 3‐D unstructured grid finite‐volume hydrodynamic model (FVCOM) was evaluated against shipboard moored observations, mixing by both the turbulent closure numerical diffusion were calculated. Excessive in regions with strong velocities, gradients, steep reduced skill...

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 347:261-274 (2007) - DOI: https://doi.org/10.3354/meps06983 Dispersal modeling of fish early life stages: sensitivity with application Atlantic cod in western Gulf Maine Martin Huret1,4,*, Jeffrey A. Runge2, Changsheng Chen1, Geoffrey Cowles1, Qichun Xu1, James M. Pringle3 1School Science and Technology,...

The unstructured‐grid Finite‐Volume Coastal Ocean Model (FVCOM) is evaluated using three idealized benchmark test problems: the Rossby equatorial soliton, hydraulic jump, and three‐dimensional barotropic wind‐driven basin. These cases examine properties of numerical dispersion damping, performance nonlinear advection scheme for supercritical flow conditions, accuracy implicit vertical viscosity in settings, respectively. It demonstrated that FVCOM provides overall a second‐order spatial...

The Finite Volume Coastal Ocean Model (FVCOM) is a publicly available software package for simulation of ocean processes in coastal areas. unstructured grid approach used the model highly advantageous resolving dynamics regions with complex shorelines such as estuaries, embayments, and archipelagos. A growing user community demand large-scale, high resolution simulations has driven need implementation portable efficient parallelization FVCOM core code. triangular precludes utilization...

The generation, propagation, and dissipation processes of large‐amplitude nonlinear internal waves in Massachusetts Bay during the stratified season were examined using nonhydrostatic Finite‐Volume Coastal Ocean Model (FVCOM‐NH). model reproduced well characteristics high‐frequency observed August 1998. experiments suggested that over Stellwagen Bank are generated by interaction tidal currents with steep bottom topography through a process forming large‐density front on western slope bank...

Twin experiments were made to compare the reduced rank Kalman filter (RRKF), ensemble (EnKF), and square‐root (EnSKF) for coastal ocean problems in three idealized regimes: a flat bottom circular shelf driven by tidal forcing at open boundary; an linear slope continental with river discharge; rectangular estuary flushing intertidal zones freshwater discharge. The hydrodynamics model used this study is unstructured grid Finite‐Volume Coastal Ocean Model (FVCOM). Comparison results show that...

Abstract Movement patterns of marine fishes can have considerable impacts on their population dynamics. A thorough understanding fish movements is therefore required for informing stock identification, assessment, and fishery management. This study investigated the seasonal connectivity a spring-spawning component Atlantic cod (Gadus morhua) in western Gulf Maine. From 2010 through 2013, spawning were sampled within an inshore closure tagged with conventional tags (n = 2368), acoustic...

The finite volume coastal ocean model (FVCOM) is configured to study the interannual variability of circulation in Gulf Maine (GoM) and Georges Bank. FVCOM‐GoM system incorporates realistic time‐dependent surface forcing derived from a high‐resolution mesoscale meteorological (MM5) assimilation observed quantities including sea temperature salinity fields on open boundary. An evaluation skill New England shelf made by comparison computed data collected during Coastal Mixing Optics (CMO)...

Abstract Tian, R. C., Chen, Stokesbury, K. D. E., Rothschild, B. J., Cowles, G. W., Xu, Q., Hu, S., Harris, P., and Marino II, M. C. 2009. Dispersal settlement of sea scallop larvae spawned in the fishery closed areas on Georges Bank. – ICES Journal Marine Science, 66: 2155–2164. Three Bank (GB) region were implemented 1994 to protect depleted groundfish stocks for population replenishment. However, drift ultimate destination have not been analysed specifically within framework ocean...

Social information obtained from heterospecifics can enhance individual fitness by reducing environmental uncertainty, making it an important driver of mixed-species grouping behavior. Heterospecific groups are well documented among fishes, yet notably more prevalent juveniles than advanced life stages, implying that the adaptive value joining other species is greater during this developmental period. We propose phenomenon be explained heightened ecological relevance heterospecifically...

Abstract During the 1990s, coastal habitat off southeastern Massachusetts (SEMA) supported commercially viable fisheries for American lobster ( Homarus americanus ). Over past two decades, landings and post‐larval settlement of lobsters in this region, which is near southern edge species' range, have declined substantially, concurrent with a period significant warming waters New England. Previous work has suggested that rising ocean temperatures may adversely impact survival larval early...

Models developed to geolocate individual fish from data recorded by electronic tags often require major modification be applied new regions, species, or tag types due variability in oceanographic conditions, behavior, and resolution. We a model for geolocating Atlantic cod (Gadus morhua) off New England that builds upon an existing hidden Markov (HMM) framework addresses region- species-specific challenges. The HMM contains likelihood compares tag-recorded environmental (depth, temperature,...

A 3-dimensional wet/dry point treatment method was developed for the unstructured-grid Finite-Volume Community Ocean Model (FVCOM). Analytical equations were derived to examine discretized errors that occurred during flooding/drying process by process. Numerical experiments carried out an idealized estuary, including inter-tidal zone. The model results show if ratio of internal external mode time steps (Isplit) is appropriately selected, FVCOM capable simulating with sufficient accuracy...

Abstract The harvest of bay scallops ( Argopecten irradians ) from Buzzards Bay, Massachusetts, U.S.A. undergoes large interannual fluctuations, varying by more than an order magnitude in successive years. To investigate the extent to which these fluctuations may be due yearly variations transport scallop larvae spawning areas suitable juvenile habitat (settlement zones), a high‐resolution hydrodynamic model was used drive individual‐based larval transport. Model results revealed that Bay...

Abstract Environmental stress associated with incident flow is among the most fundamental physical factors structuring fish distributions. In shallow marine habitats, flow‐related arises through several distinct processes, yet their combined ramifications for habitat utilization by fishes are rarely evaluated concurrently. We used hydrodynamic models to resolve spatial and temporal variability in wave‐ tide‐driven water velocities across littoral zone of a subtropical island, related these,...