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Puget Sound Georgia Basin Model

Salish Sea Model Solution Files (VisIt Format)

Hydrodynamics and Water Quality

(This page is intended for the Salish Sea model (SSM) project team and their collaborators. Please contact Tarang Khangaonkar if you are interested in additional information or would like access to specific model solution data sets)

In the Finite Volume Coastal Ocean Model (FVCOM), vector quantities such as u, v - velocity components are computed at the centroids of the triangular cells of the finite volume grid. The scalar variables such as the salinity, temperature, and concentrations of water-quality constituents are computed at the nodes. The hydrodynamic (FVCOM) component of the PSGB model is set up to generate hourly solution files in binary format. The water-quality FVCOM-Integrated Compartment Model (FVCOM-ICM) component of the SSM also generates binary solution files at 6-hour intervals. Using the solution files for research applications requires separate utilities to read and process the results. These are often Fortran- or Matlab-based utilities customized by users who have familiarity with finite volume modeling in unstructured grid domains.

To facilitate the use and application of the SSM results by our community, we are currently developing output procedures to save hydrodynamic and water-quality solution files in *.netcdf format optimized for processing using the VisIt visualization software developed by the U.S. Department of Energy. This tool is well suited for handling unstructured grid models. VisIt is a free interactive parallel visualization and graphical analysis tool for viewing scientific data on Unix and PC platforms.

Enlarge image Click on the image below to enlarge.

An example of a a three-dimensional rendering of Snohomish Basin using VisIt (exaggerated vertical scale).

Salish Sea Model Overview

Research & Projects