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     •   University of New Hampshire, Joint Hydrographic Center  

Delaware Bay Experimental Forecast System (DBEFS)

The National Oceanic and Atmospheric Administration installed a Physical Oceanographic Real Time System (PORTS) in June 2001 to monitor Delaware Bay. Water surface elevation, currents, temperature, salinity, and meteorological information are available at six-minute intervals. To complement the PORTS, a nowcast/forecast system is being developed based on the National Ocean Service (NOS) Delaware Bay three-dimensional hydrodynamic model. The Delaware Bay model will be used to provide bay-wide and up river water level, current, and density forecasts from the bay entrance to Trenton, NJ. Each day an experimental 24 hour nowcast and 36 hour forecast of water level, currents, salinity, and temperature will be performed. Experimental nowcasts and forecasts will be made driven by: 1) observed (PORTS) and forecasted (National Weather Service (NWS)) Extra-Tropical Storm Surge model) subtidal water level at Lewes, DE and Cape May, NJ, 2) observed streamflow (United States Geological Survey (USGS)) and forecasted streamflow (NWS Mid-Atlantic River Forecast Center), and 3) analyzed (PORTS meteorological stations) and forecast (NWS North American Mesoscale model) wind and pressure fields.

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