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Surge and Tide Operational Forecast System (STOFS)
This dataset collection describes the Surge and Tide Operational Forecast System (STOFS, formerly ESTOFS), which is a collaboration between the NOAA's Office of Coast Survey (OCS)/Coast Survey Development Lab (CSDL), University of Notre Dame, Virginia Institute of Marine Science and NOAA's National Centers for Environmental Prediction (NCEP).
The STOFS system runs on NCEP's central high performance computing system, the Weather and Climate Operational Supercomputing System 2 (WCOSS2), and is composed of three main products: STOFS-2D-Global, STOFS-3D-Atlantic, and STOFS-3D-Pacific.
STOFS-2D-Global is a two-dimensional depth averaged global component based on the ADvanced CIRCulation (ADCIRC) model core. STOFS-2D-Global runs four times daily producing numerical storm surge and tide model forecast guidance globally out to 180 hours. The model is forced by real time output of winds and pressure from the NCEP Global Forecast System (GFS). The domain of the operational STOFS-2D-Global forecast guidance covers the entire globe, including the floodplain of the coastal U.S., the Caribbean area surrounding Puerto Rico, and Alaska.
STOFS-3D-Atlantic is a three-dimensional (3D) model component for the Atlantic basin (STOFS-3D-Atl) based on the Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM) core. STOFS-3D-Atl runs daily to provide one day of nowcast and four days of water level and surface current forecast guidance. STOFS-3D-Atl makes use of outputs from the National Water Model (NWM) 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 combined tidal and subtidal water level, and three-dimensional water temperature, salinity, and currents from the NCEP Global Real-Time Ocean Forecast System (G-RTOFS) as the open ocean boundary forcing.
STOFS-3D-Pacific is a three-dimensional (3D) model component for the Pacific basin (STOFS-3D-Pac) based on the Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM) core. STOFS-3D-Pacific runs daily to provide one day of nowcast and two days of water level and surface current forecast guidance. STOFS-3D-Pac 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.
NOAA utilizes the STOFS 2D (Global) and 3D (Atlantic and Pacific) systems to generate IHO S-104 water level and S-111 surface current forecast guidance for marine navigation
Finally, the STOFS Reanalysis was created by building on NOAA's STOFS-3D-Atlantic forecast (STOFS-3D-Atl) and implementing data assimilation using an efficient Ensemble Optimal Interpolation (EnOI) to assimilate CO-OPS water level gauges along the east and Gulf coasts. A 26-year reanalysis was then conducted using this tool, spanning from 2000 to 2025, with each year being simulated separately but with a one-month overlap between years (i.e. 2001 simulation starts from Dec 1, 2000). This database represents the first ever physically based simulation for total water levels.
Resources
5 resources available
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NOAA 3-D Surge and Tide Operational Forecast System for the Atlantic Basin (STOFS-3D-Atlantic) on AWS
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NOAA Global Surge and Tide Operational Forecast System 2-D (STOFS-2D-Global) on AWS
HTML -
nowCOAST Dissemination Platform
HTML -
GCMD Keyword Forum Page
HTML -
Full Metadata Record
HTML
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| contactPoint |
{ "fn": "Not provided - Contact data.gov", "hasEmail": "mailto:datagovsupport@gsa.gov" } |
| describedByType | application/octet-stream |
| description | This dataset collection describes the Surge and Tide Operational Forecast System (STOFS, formerly ESTOFS), which is a collaboration between the NOAA's Office of Coast Survey (OCS)/Coast Survey Development Lab (CSDL), University of Notre Dame, Virginia Institute of Marine Science and NOAA's National Centers for Environmental Prediction (NCEP). The STOFS system runs on NCEP's central high performance computing system, the Weather and Climate Operational Supercomputing System 2 (WCOSS2), and is composed of three main products: STOFS-2D-Global, STOFS-3D-Atlantic, and STOFS-3D-Pacific. STOFS-2D-Global is a two-dimensional depth averaged global component based on the ADvanced CIRCulation (ADCIRC) model core. STOFS-2D-Global runs four times daily producing numerical storm surge and tide model forecast guidance globally out to 180 hours. The model is forced by real time output of winds and pressure from the NCEP Global Forecast System (GFS). The domain of the operational STOFS-2D-Global forecast guidance covers the entire globe, including the floodplain of the coastal U.S., the Caribbean area surrounding Puerto Rico, and Alaska. STOFS-3D-Atlantic is a three-dimensional (3D) model component for the Atlantic basin (STOFS-3D-Atl) based on the Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM) core. STOFS-3D-Atl runs daily to provide one day of nowcast and four days of water level and surface current forecast guidance. STOFS-3D-Atl makes use of outputs from the National Water Model (NWM) 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 combined tidal and subtidal water level, and three-dimensional water temperature, salinity, and currents from the NCEP Global Real-Time Ocean Forecast System (G-RTOFS) as the open ocean boundary forcing. STOFS-3D-Pacific is a three-dimensional (3D) model component for the Pacific basin (STOFS-3D-Pac) based on the Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM) core. STOFS-3D-Pacific runs daily to provide one day of nowcast and two days of water level and surface current forecast guidance. STOFS-3D-Pac 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. NOAA utilizes the STOFS 2D (Global) and 3D (Atlantic and Pacific) systems to generate IHO S-104 water level and S-111 surface current forecast guidance for marine navigation Finally, the STOFS Reanalysis was created by building on NOAA's STOFS-3D-Atlantic forecast (STOFS-3D-Atl) and implementing data assimilation using an efficient Ensemble Optimal Interpolation (EnOI) to assimilate CO-OPS water level gauges along the east and Gulf coasts. A 26-year reanalysis was then conducted using this tool, spanning from 2000 to 2025, with each year being simulated separately but with a one-month overlap between years (i.e. 2001 simulation starts from Dec 1, 2000). This database represents the first ever physically based simulation for total water levels. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "NOAA 3-D Surge and Tide Operational Forecast System for the Atlantic Basin (STOFS-3D-Atlantic) on AWS", "accessURL": "https://registry.opendata.aws/noaa-nos-stofs3d/", "mediaType": "text/html", "description": "The 3-D component of the STOFS, namely, STOFS-3D-Atlantic provides users with the 24-hour nowcasts (analyses of near present conditions) and up to 96-hour forecast guidance of the water level conditions, as well as 2- and 3-dimensional fields of water temperature, salinity, and currents. The files are in NETCDF, GRIB2, and SHEF format.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "NOAA Global Surge and Tide Operational Forecast System 2-D (STOFS-2D-Global) on AWS", "accessURL": "https://registry.opendata.aws/noaa-gestofs/", "mediaType": "text/html", "description": "Forecast guidance of water levels from NOAA's STOFS-2D-Global is now available on Amazon S3. STOFS-2D-Global provides users with nowcasts (analyses of near present conditions) and forecast guidance of water level conditions for the entire globe. The forecast outputs include water levels caused by astronomical tides alone (HTP), by sub-tidal water levels (isolated storm surge) (SWL), and their combination (CWL). The files are in NETCDF, GRIB2, and SHEF format.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "nowCOAST Dissemination Platform", "accessURL": "https://nowcoast.noaa.gov/", "mediaType": "text/html", "description": "Office of Coast Survey's nowCOAST is a GIS-based web mapping application providing present and future oceanographic, meteorological, and hydrologic information (observations, analyses, forecasts, alerts) from NOAA along with bathymetric data for U.S. coastal areas to support public safety, coastal preparedness, response, and precision marine navigation.", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "GCMD Keyword Forum Page", "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords", "mediaType": "text/html", "description": "Global Change Master Directory (GCMD). 2026. GCMD Keywords, Version 24. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords", "describedByType": "application/octet-stream" }, { "@type": "dcat:Distribution", "title": "Full Metadata Record", "accessURL": "https://www.fisheries.noaa.gov/inport/item/79430", "mediaType": "text/html", "description": "View the complete metadata record on InPort for more information about this dataset.", "describedByType": "application/octet-stream" } ] |
| identifier | https://data.noaa.gov/waf/NOAA/nos/ocs/iso/xml/79430.xml |
| issued | 2020-01-01T00:00:00.000+00:00 |
| keyword |
[ "EARTH SCIENCE > OCEANS > COASTAL PROCESSES > STORM SURGE", "EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY > SEA LEVEL", "EARTH SCIENCE > OCEANS > TIDES > STORM SURGE", "OCEAN", "Forecasting", "STOFS", "DOC/NOAA/NOS/OCS > Office of Coast Survey, National Ocean Service, NOAA, U.S. Department of Commerce", "ocs" ] |
| landingPage | https://www.fisheries.noaa.gov/inport/item/79430 |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2020-01-01T00:00:00.000+00:00 |
| publisher |
{ "name": "Office of Coast Survey", "@type": "org:Organization" } |
| spatial | 180.0,-90.0,-180.0,90.0 |
| temporal | 2020-01-01T00:00:00+00:00/2020-01-01T00:00:00+00:00 |
| theme |
[ "geospatial" ] |
| title | Surge and Tide Operational Forecast System (STOFS) |
