ABSTRACT
A three-dimensional (3D) hyodrodynarnic and water quality model was applied to the New York and New Jersey Harbor as part of the NY-NJ Harbor Navigation Study (HNS). The HNS a comprehensive examination of the need for navigation improvements within the Port of New York and New Jersey - evaluated navigation channel improvements including the deepening of existing Federal and non-Federal channels and channel designs that would facilitate an economically efficient and environmentally sound port for current and future requirements. The purpose of the 3D-hydrodymanic and water quality modeling effort was to examine the impacts of channel improvements/deepening on physical and chemical parameters that directly influence the biological community. The parameters were: tidal current and elevation modifications, water temperature, dissolved oxygen, and salinity. The hydraulic and water quality model results were used in an assessment of project impacts on the aquatic community through a modified guild approach.
