The numerical model is based on the three-dimensional semi-implict Estuarine Coastal Ocean Model (ECOM-si) for Massachusetts Bay. The model domain covers the entire Massachusetts Bay and a portion of the western Gulf of Maine including the Merrimack River (Figure 1). The model is driven by solar radition, meterological forcing, tides, river discharges and boundary forcings, which include climatological data, meterological forecast results, and real-time observations including measurements from NOAA buoy 44013 and GoMOOS buoy B.

In order to provide better simulation of Boston Harbor and its vicinity, a nested model is developed using a two-way nesting schemes (Figure 1). The nested model includes more realistic geometrical information and finer grid resolution (about 200m in Boston Harbor) and hence more realistic simulations.

This project is supported by University of Massachusetts Boston and John Adam Innovation Institute Fund. Steve Cousin at UMaine kindly shared his codes and provided valuable helps for building the forecast interface.