Event Title

Modelling Estuarine Exchange through Boundary Pass

Presentation Abstract

Estuarine circulation in the Strait of Georgia consists of a surface brackish outflow (the freshwater predominantly from the Fraser River) and a deeper return flow that varies in depth seasonally. Transport to and from the open ocean is mainly to the south through Boundary Pass and Haro Strait. We have configured a regional implementation of the NEMO model for the Salish Sea. It is baroclinic, forced by hourly 2.5 km resolution winds, sea-surface height at the mouth of Juan de Fuca Strait, daily Fraser River flows, and climatology for another 149 rivers. We model 8 tidal constituents. We will discuss model evaluation against observations. As a southern boundary to the Strait of Georgia we focus on a vertical cross-section across Boundary Pass. We will present depth profiles of fluxes of freshwater through this cross-section as a function of tides, river flow, Juan de Fuca density, winds and in addition, as a function of various modelling parameters.

Session Title

Salish Sea Estuarine Circulation

Conference Track

Habitat

Conference Name

Salish Sea Ecosystem Conference (2016 : Vancouver, B.C.)

Document Type

Event

Location

2016SSEC

Type of Presentation

Oral

Contributing Repository

Digital content made available by University Archives, Heritage Resources, Western Libraries, Western Washington University.

Rights

This resource is displayed for educational purposes only and may be subject to U.S. and international copyright laws. For more information about rights or obtaining copies of this resource, please contact University Archives, Heritage Resources, Western Libraries, Western Washington University, Bellingham, WA 98225-9103, USA (360-650-7534; heritage.resources@wwu.edu) and refer to the collection name and identifier. Any materials cited must be attributed to the Salish Sea Ecosystem Conference Records, University Archives, Heritage Resources, Western Libraries, Western Washington University.

Type

Text

Language

English

Format

application/pdf

This document is currently not available here.

Share

COinS
 

Modelling Estuarine Exchange through Boundary Pass

2016SSEC

Estuarine circulation in the Strait of Georgia consists of a surface brackish outflow (the freshwater predominantly from the Fraser River) and a deeper return flow that varies in depth seasonally. Transport to and from the open ocean is mainly to the south through Boundary Pass and Haro Strait. We have configured a regional implementation of the NEMO model for the Salish Sea. It is baroclinic, forced by hourly 2.5 km resolution winds, sea-surface height at the mouth of Juan de Fuca Strait, daily Fraser River flows, and climatology for another 149 rivers. We model 8 tidal constituents. We will discuss model evaluation against observations. As a southern boundary to the Strait of Georgia we focus on a vertical cross-section across Boundary Pass. We will present depth profiles of fluxes of freshwater through this cross-section as a function of tides, river flow, Juan de Fuca density, winds and in addition, as a function of various modelling parameters.