What is the difference between real-time and real-tide?
Real-tide is a specific application of DSM2. Real-tide DSM2 simulations use real tidal data for the downstream tidal boundary condition at Martinez instead of 19-year mean tidal data. Real-tide simulations typically use 15-minute computational time steps. The input data typically can be 15 minutes, 1 hour, or daily. When we talk about “historical” simulations, we often mean real-tide simulations. Real-time is used to describe either data or a simulation that is recent. Real-time simulations are all real-tide simulations (though real-tide simulations that don’t use recent data are simply historical simulations). The same 15-minute computational time step is used. Many locations in the Delta have real-time telemetry. Hydrodynamic and water quality data from these stations is transmitted directly from the field into our data bases, including the IEP DSS database. Often this data has not been screened, and is considered preliminary. If a simulation makes use of this real-time data and it i
