HOME | ABOUT US | CONTACT | REGIONAL MANAGERS
 
  Research & Development  
 
  Experimental Products / Prototypes  
     •   BookletChart™ (Experimental)  
     •   Water Level and Current Forecast Guidance  
 
  Hydrographic Support  
     •   Autonomous Underwater Vehicles (AUV)  
     •   Remotely Operated Vehicles (ROV)  
     •   Phase Differencing Bathymetric Sonar  
     •   Sound Velocity Profiler  
     •   Tidal Corrector Application (TCARI)  
 
  Products and Database Development  
     •   Bathymetric Warehouse  
     •   Coast Pilot Relational Database  
     •   VDatum Enhancements  
     •   Coastal Digital Elevation Models  
     •   Operational Data Acquisition & Archiving System  
     •   nowCOAST  
 
  Coastal & Estuarine Ocean Modeling  
     •   Forecast System Modeling  
     •   Inundation Modeling  
     •   Ecological Modeling Applications  
     •   Community Modeling & Standards  
     •   Model Evaluation Environment  
 
  Learn About  
     •   Coast Survey Development Laboratory  
     •   Hydrographic Survey Equipment  
     •   Datums and Transformations  
     •   How Hydrodynamic Models Are Used  
 
  Resources  
     •   Technical Reports & Publications  
     •   Coast Survey Partners  
     •   Standards and Requirements  
 
  Data Portals  
     •   nowCOAST: Real-Time Coastal Data Map Portal  
     •   Tides and Currents (General)  
     •   Physical Oceanographic Real-Time System (PORTS)  
     •   Operational Forecast Systems  
     •   Sea Nettle Forecast Guidance  
     •   North American Horizontal Datum Conversion Utility  
     •   University of New Hampshire, Joint Hydrographic Center  
 

Galveston Bay Operational Forecast System (GBOFS)
 GBOFS logo imposed over map of color-coded water levels in Galveston Bay. On June 30, 2004, ship traffic in Galveston Bay, Texas, gained a new tool to assist in safe navigation. The Galveston Bay Operational Forecast System (GBOFS), became operational at the Center for Operational Oceanographic Products and Services (CO-OPs) and provides hourly nowcasts and 30 hour forecasts four times daily (00, 06,12, and 18Z) of water levels, currents, temperature and salinity. Prior to operational status, an experimental nowcast/forecast system was developed in CSDL as an educational tool as well as a back-up to the operational system.
 Map of Galveston Bay with PORTS observation locations indicated.

 PORTS observation locations in Galveston Bay


The two nowcast/forecast systems serve as a complement to the PORTS system, which was established in June 1996. Water surface elevation, currents, temperature, salinity, and meteorological information are available at six-minute intervals. To simulate currents within the Houston Ship Channel (HSC), a finer resolution three-dimensional HSC model was developed. The Galveston Bay model is used to provide bay-wide water level and near entrance current forecasts as well as to directly provide water levels, density, and turbulence quantities to the HSC model for use in a one-way coupling. Operational and experimental nowcasts and forecasts are made with both the Bay and HSC models driven by: 1) observed (PORTS) and forecasted (National Weather Service (NWS) Extra-Tropical Storm Surge model) subtidal water level at Galveston Pleasure Pier, 2) observed streamflow United States Geological Survey (USGS) and forecasted streamflow (NWS Western Gulf River Forecast Center), and 3) analyzed (PORTS meteorological stations) and forecast (NWS North American Mesoscale model) wind and pressure fields.

User Survey  | Privacy Policy  |  Disclaimer  |  NOAA's National Ocean Service  |  NOAA  |  U.S. Department of Commerce 
Web site owner: NOAA Office of Coast Survey