Proposed Abstract Title

Toward an operational biogeochemical model for the Strait of Georgia and Salish Sea

Type of Presentation

Oral

Session Title

The Salish Sea Marine Survival Project- Novel Approaches, Project Status and Key Findings

Location

2016SSEC

Description

The Strait of Georgia, located between Vancouver Island and mainland British Columbia, is a 28 km wide fjord-like estuary that is home to a vibrant marine ecosystem. An NPZD-type model for the region was developed based on available biomass time series. The data showed that after diatoms, the mixotroph, Myrionecta rubra was the next most abundant primary producer by biomass. Therefore, in addition to diatoms, M. rubra and its cryptophyte prey are represented as functional groups in the model. This model has now been extended to three dimensions through coupling with a NEMO-based physical model of the Salish Sea. We will discuss challenges and successes in the extension of the biological model to three dimensions and the outlook for production of daily operational predictions of biological and chemical fields. In addition, we will present preliminary findings on the spatial variability and controls of primary productivity in the Salish Sea, including a model-based analysis of the impacts of river outflow, wind and tidal mixing, and exchange with continental shelf waters.

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Toward an operational biogeochemical model for the Strait of Georgia and Salish Sea

2016SSEC

The Strait of Georgia, located between Vancouver Island and mainland British Columbia, is a 28 km wide fjord-like estuary that is home to a vibrant marine ecosystem. An NPZD-type model for the region was developed based on available biomass time series. The data showed that after diatoms, the mixotroph, Myrionecta rubra was the next most abundant primary producer by biomass. Therefore, in addition to diatoms, M. rubra and its cryptophyte prey are represented as functional groups in the model. This model has now been extended to three dimensions through coupling with a NEMO-based physical model of the Salish Sea. We will discuss challenges and successes in the extension of the biological model to three dimensions and the outlook for production of daily operational predictions of biological and chemical fields. In addition, we will present preliminary findings on the spatial variability and controls of primary productivity in the Salish Sea, including a model-based analysis of the impacts of river outflow, wind and tidal mixing, and exchange with continental shelf waters.