Pearl River Forecast System @ PONG

Model Configuration

Pearl River Forecast System is a fully operational ocean circulation forecast model on the South China Sea shelf based on the Regional Ocean Modeling System (ROMS). The system provides real-time analysis and 7-day forecast data for investigating coastal environments in the Pearl River region. The model domain covers the entire Pearl River region and the northern shelf of South China Sea with a resolution of 1800m in the horizontal (black lines mark every 10 grid spaces, i.e., there are 100 cells inside each cell shown here) and 30 layers in the vertical. The water depth ranges from 5m to more than 3000m. The forecast simulation is initialized in 2017. The analysis and forecast fields of surface heat, momentum, and salt flux are provided by the Global Forecast System - NOAA. The ocean open boundary conditions are operationally created based on the Copernicus - Marine Environment Monitoring Service. The real-time river discharge data are operationally parsed from the National Hydrologic Information Center - China Hydrology. The model output has a 3-hourly temporal resolution for temperature, salinity, sea level, and current, which are posted on the Data Portal.

Model Validation

The hindcast mode is initialized on January 1, 2007 and run for 10 years from 2007 to 2016, with the initial and open boundary conditions created from the Copernicus - Marine environment monitoring service. The surface heat, momentum, and salt fluxes are provided by the ERA-Interium. The model is non-assimilative to keep hydrodynamic features. The model performance on SST was assessed based on the Multi-scale Ultra-high Resolution Sea Surface Temperature (MUR SST) satellite data.