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Puget Sound Georgia Basin Model

Salish Sea Model Solution Files

Pacific Northwest National Laboratory has generated an archive of results from the SSM. Please contact Tarang Khangaonkar if you are interested in additional information or would like access to specific model solution data sets.

Hydrodynamics and Water Quality


All variables are computed or interpolated to represent the centroid of the triangular cells in the finite volume grid. These include velocity components in three dimensions, salinity, temperature, and water-quality constituents. The hydrodynamic (FVCOM) component of the SSM is set up to generate hourly solution files in binary format. The water-quality FVCOM-Integrated Compartment Model (FVCOM-ICM) component of the SSM generates binary solution files at 6-hour intervals.

To facilitate the use and application of the SSM results by our community, we have developed output procedures to save hydrodynamic and water-quality solution files as *.netcdf files optimized for processing with 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.

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


Effluent and Oil Spill Transport

GNOME (General NOAA Operational Modeling Environment) is the modeling tool that the Office of Response and Restoration's (OR&R's) Emergency Response Division uses to predict the possible trajectory that a pollutant might follow in or on a body of water, such as in the case of an oil spill. With assistance from NOAA, we developed output procedures to create GNOME-compatible *.netcdf files that can feed directly into the GNOME program.

Simulation of a hypothetical oil spill in the Snohomish River estuary

Salish Sea Model Overview

Research & Projects