Data coverage
NOTICE - The Coast Survey Development Laboratory (CSDL) in NOAA/National Ocean Service (NOS)/Office of Coast Survey is upgrading the Surge and Tide Operational Forecast System (STOFS) to Version 3.1. A Service Change Notice (SCN) has been issued and can be found "HERE" NOAA's Surge and Tide Operational Forecast System: Three-Dimensional Component for the Atlantic Basin (STOFS-3D-Atlantic) and for the Pacific Basin (STOFS-3D-Pacific). STOFS-3D-Atlantic and STOFS-3D-Pacific run daily (at 12 UTC) to provide users with 24-hour nowcasts (analyses of near present conditions) and up to 96-hour (Atlantic) and 48-hour (Pacific) forecast guidance of water level conditions, and 2- and 3-dimensional fields of water temperature, salinity, and currents. The water level outputs represent the combined tidal and subtidal water surface elevations and are referenced to xGEOID20B (Atlantic) and Local Mean Sea Level (LMSL) (Pacific). STOFS-3D-Atlantic and STOFS-3D-Pacific have been developed to serve the marine navigation, weather forecasting, and disaster mitigation user communities. They are developed in a collaborative effort between the NOAA/National Ocean Service (NOS)/Office of Coast Survey, the NOAA/National Weather Service (NWS) Central Operations (NCO), the Virginia Institute of Marine Science, and the Columbia River Inter-Tribal Fish Commission. STOFS-3D-Atlantic employs the Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM) as the hydrodynamic model core. Its unstructured grid consists of 3,052,121 nodes and 5,872,610 triangular or quadrilateral elements. Grid resolution is 1.5-2 km near the shoreline, ~600 m for the floodplain, down to 8 m for watershed rivers (at least 3 nodes across each river cross-section), and around 2-10 m for levees. Along the U.S. coastline, the land boundary of the domain aligns with the 10-m contour above xGEOID20B, encompassing the coastal transitional zone most vulnerable to coastal and inland flooding. STOFS-3D-Pacific employs the Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM) as the hydrodynamic model core. Its unstructured grid consists of 2,961,412 nodes and 5,774,631 triangular or quadrilateral elements. Grid resolution is 1.5-2 km near the shoreline, ~600 m for the floodplain, down to 8 m for watershed rivers (at least 3 nodes across each river cross-section). Along the U.S. coastline, the land boundary of the domain aligns with the 10-m contour above xGEOID20B, encompassing the coastal transitional zone most vulnerable to coastal and inland flooding. STOFS-3D-Atlantic makes use of outputs from the National Water Model (NWM) and Canadian stream gauge data to include inland hydrology and extreme precipitation effects on coastal flooding; forecast guidance from the NCEP Global Forecast System (GFS) and High-Resolution Rapid Refresh (HRRR) model as the surface meteorological forcing; the tidal water level and currents from the FES2014 tidal database; and the subtidal water level, and subtidal three-dimensional water temperature, salinity, and currents from the NCEP Global Real-Time Ocean Forecast System (G-RTOFS) with the subtidal water level from G-RTOFS and Copernicus Absolute Dynamic Topography (ADT) satellite altimetry observation as the open ocean boundary forcing. STOFS-3D-Pacific makes use of outputs from the National Water Model (NWM), Copernicus Global Flood Awareness System (GloFAS), USGS, and Canadian stream gauge data to include inland hydrology and extreme precipitation effects on coastal flooding; forecast guidance from the NCEP Global Forecast System (GFS) and High-Resolution Rapid Refresh (HRRR) model as the surface meteorological forcing; the tidal water level and currents from the TPXO9 tidal database; and the subtidal water level, and subtidal three-dimensional water temperature, salinity, and currents from the NCEP Global Real-Time Ocean Forecast System (G-RTOFS) with the subtidal water level from G-RTOFS and Copernicus Absolute Dynamic Topography (ADT) satellite altimetry observation as the open ocean boundary forcing. STOFS-3D-Atlantic and STOFS-3D-Pacific forecast guidance output available here include NetCDF, GRIB2, SHEF, and GPKG files. Please see README documentation for more details.
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