#O01 A Biogeochemical Modeling Studying on San Francisco Bay

Abstract

In San Francisco Bay, phytoplankton growth is largely influenced by nutrient dynamics and suspended particulate matter (SPM). A biogeochemical model is developed for this area to study the phytoplankton dynamics. This model is based on Carbon, Silicate, and Nitrogen Ecosystem (CoSiNE) model, which is coupled with Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM). A new version of CoSiNE model is developed recently with a better model structure, a separate input file and new functionalities, aimed to facilitate the usage of this model in various water environments including ocean and estuaries. The calibration of this model is done in San Francisco Bay for 2011. We will introduce how different nutrients regulate the phytoplankton growth in San Francisco Bay. Also, we will investigate the influence of SPM on phytoplankton by incorporating SPM into our model. The future development of CoSiNE model involves coupling the model with MPAS-O/biogeochemical model regarding nutrient recycling process, carbon cycle and light filed.