Geoffrey W. Cowles

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The Finite Volume Coastal Ocean Model (FVCOM) is a publicly available software package for simulation of ocean processes in coastal areas. The unstructured grid approach used in the model is highly advantageous for resolving dynamics in regions with complex shorelines such as estuaries, embayments, and archipelagos. A growing user community and a demand for(More)
[1] Physical mechanisms for the summertime offshore detachment of the Changjiang Diluted Water (CDW) into the East China Sea are examined using the high-resolution, unstructured-grid, Finite-Volume Coastal Ocean Model (FVCOM). The model results suggest that isolated low salinity water lens detected west of Cheju Island can be formed by (1) a large-scale(More)
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. [1] Twin experiments were made to compare the reduced rank Kalman filter(More)
Executive Summary Under contract with Massachusetts Water Resources Authority, the University of Massachusetts Dartmouth's Marine Ecosystem Dynamic Modeling team conducted model simulations for the Massachusetts Bay system. These models simulate the water motion (hydrodynamics) and the biologically-driven changes in carbon and nutrients (water quality) of(More)
In this work, we will employ a high-resolution coupled hydrodynamic-sediment model to examine the relative importance of the principal mechanisms controlling the morphodynamics of Skagit Bay. Using the measurements from the extensive observation program supported through the tidal flats DRI, we will examine the capability of a state of the art coastal ocean(More)
  • Robert C Beardsley, R Beardsley, +4 authors J Allen
  • 2005
(400 words or less) We propose to develop a Northeast regional state-of-the-art coupled Atmosphere/Ocean Model System (NEAOMS) for the Gulf of Maine/Mid-Atlantic Bight region (Scotian Shelf-Cape Hatteras) to study the coupled atmosphere/ocean behavior under a variety of conditions. NEAOMS will feature four core models: (a) the next-generation Weather(More)
Diagonal preconditioners for implicit-unsteady and steady discretizations of the shallow water equations at low-and high-Rossby and drag-number limits are analyzed. For each case, sub and supercritical flow conditions are also considered. Based on the analysis, a preconditioner is derived for use with a multigrid cycle that performs as well as possible(More)
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