gov.noaa.ncdc:C01700 eng; USA utf8 series NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2025-09-12T19:03:43 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Regional Hydrodynamic Model Outputs of the NOAA Operational Forecast System (OFS) CO-OPS OFS Models 2017 publication International DOI Foundation (IDF) doi:10.25921/fztr-mf31 NCEI DSI 2014_01 gov.noaa.ncdc:C01700 NOAA National Weather Service author NOAA National Ocean Service author NOAA Office of Oceanic and Atmospheric Research author NOAA National Centers for Environmental Information publisher This dataset comprises output fields from NOAA Operational Forecast System (OFS) coastal ocean models. The National Ocean Service (NOS) maintains a suite of operational high-resolution hydrodynamic nowcast/forecast systems known as Operational Forecast Systems (OFS). The OFS are implemented in critical ports, harbors, estuaries, the Great Lakes and coastal waters of the United States and provide nowcast and near-term forecast guidance (generally 48 hours) of total water level (without waves), currents, salinity, and water temperature. This dataset includes two types of outputs: (1) time series of gridded (3-dimensional) model fields at up to hourly intervals; and (2) time series of values at specific locations, generally representing observing stations located within the model domain, at up to 6-minute resolution. The format of both types of files is CF-compliant netCDF. Though the OFS models are run 4x daily, for most domains NCEI only preserves one realization of each output time slice (i.e. only the 0-5 hour forecast fields from each run cycle are preserved). These models provide the marine user community with critical decision support information for multiple applications ranging from marine navigation, search and rescue, hazmat response, and ecological forecasting. historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/pub/data/metadata/images/C01700_OFS_Models.png OFS model regions PNG Earth Science > Oceans > Salinity/Density Earth Science > Oceans > Tides > Tidal Currents Earth Science > Oceans > Ocean Winds > Surface Winds Earth Science > Oceans > Ocean Temperature > Water Temperature Earth Science > Oceans > Ocean Circulation > Ocean Currents Earth Science > Oceans > Coastal Processes > Sea Surface Height Earth Science > Oceans > Coastal Processes > Tidal Height Earth Science > Oceans > Coastal Processes > Longshore Currents Earth Science Services > Models > Ocean General Circulation Models (Ogcm)/Regional Ocean Models theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Ocean > Pacific Ocean > North Pacific Ocean Ocean > Atlantic Ocean > North Atlantic Ocean > Gulf Of Maine Ocean > Atlantic Ocean Ocean > Atlantic Ocean > North Atlantic Ocean > Gulf Of Mexico Continent > North America > United States Of America > Florida Continent > North America > United States Of America > California Continent > North America > United States Of America > New York Continent > North America > United States Of America > New Jersey Continent > North America > United States Of America > Alaska Continent > North America > United States Of America > Great Lakes Continent > North America > Canada > Great Lakes, Canada Continent > North America > United States Of America > Delaware Continent > North America > United States Of America > Oregon Continent > North America > United States Of America > Washington place Global Change Master Directory (GCMD) Location Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Other > Models > Operational Models platform Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce DOC/NOAA/NOS > National Ocean Service, NOAA, U.S. Department of Commerce DOC/NOAA/OAR > Ocean and Atmospheric Research, NOAA, U.S. Department of Commerce DOC/NOAA/NOS/CO-OPS > Center for Operational Oceanographic Products and Services, National Ocean Service, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Cite As: NOAA National Ocean Service; NOAA National Weather Service; NOAA Office of Oceanic and Atmospheric Research (2017): Regional Hydrodynamic Model Outputs of the NOAA Operational Forecast System (OFS). [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/fztr-mf31. Accessed [date]. otherRestrictions NOS Hydrodynamic Model Outputs of Operational Forecast System (OFS) 2001 publication gov.noaa.nmfs.inport:69283 Center for Operational Oceanographic Products and Services (CO-OPS) author https://www.fisheries.noaa.gov/inport/item/69283 NOS Hydrodynamic Model Outputs of Operational Forecast System (OFS) Related NOAA National Ocean Service metadata record (InPort). information largerWorkCitation project Operational Forecast System Center for Operational Oceanographic Products and Services (CO-OPS) author https://tidesandcurrents.noaa.gov/models.html Operational Forecast System NOAA Tides and Currents page for the Operational Forecast System (OFS). information largerWorkCitation project eng; USA climatologyMeteorologyAtmosphere Comprehensive bounding extents of the regional OFS models. -157 -61 18 65 2014-01-01 1 ntimes int number of long time-steps ndtfast int number of short time-steps dt double size of long time-steps dtfast double size of short time-steps dstart double time stamp assigned to model initilization nHIS int number of time-steps between history records ndefHIS int number of time-steps between the creation of history files nRST int number of time-steps between restart records nSTA int number of time-steps between stations records Falpha double Power-law shape barotropic filter parameter Fbeta double Power-law shape barotropic filter parameter Fgamma double Power-law shape barotropic filter parameter Akt_bak double background vertical mixing coefficient for tracers Akv_bak double background vertical mixing coefficient for momentum Akk_bak double background vertical mixing coefficient for turbulent energy Akp_bak double background vertical mixing coefficient for length scale rdrg double linear drag coefficient rdrg2 double quadratic drag coefficient Zob double bottom roughness Zos double surface roughness Znudg double free-surface nudging/relaxation inverse time scale M2nudg double 2D momentum nudging/relaxation inverse time scale M3nudg double 3D momentum nudging/relaxation inverse time scale Tnudg double Tracers nudging/relaxation inverse time scale FSobc_in double free-surface inflow, nudging inverse time scale FSobc_out double free-surface outflow, nudging inverse time scale M2obc_in double 2D momentum inflow, nudging inverse time scale M2obc_out double 2D momentum outflow, nudging inverse time scale Tobc_in double tracers inflow, nudging inverse time scale Tobc_out double tracers outflow, nudging inverse time scale M3obc_in double 3D momentum inflow, nudging inverse time scale M3obc_out double 3D momentum outflow, nudging inverse time scale rho0 double mean density used in Boussinesq approximation gamma2 double slipperiness parameter LuvSrc int momentum point sources and sink activation switch LwSrc int mass point sources and sink activation switch LtracerSrc int tracer point sources and sink activation switch LsshCLM int sea surface height climatology processing switch Lm2CLM int 2D momentum climatology processing switch Lm3CLM int 3D momentum climatology processing switch LtracerCLM int tracer climatology processing switch LnudgeM2CLM int 2D momentum climatology nudging activation switch LnudgeM3CLM int 3D momentum climatology nudging activation switch LnudgeTCLM int tracer climatology nudging activation switch spherical int grid type logical switch xl double domain length in the XI-direction el double domain length in the ETA-direction Vtransform int vertical terrain-following transformation equation Vstretching int vertical terrain-following stretching function theta_s double S-coordinate surface control parameter theta_b double S-coordinate bottom control parameter Tcline double S-coordinate surface/bottom layer width hc double S-coordinate parameter, critical depth grid int Cs_r double S-coordinate stretching curves at RHO-points Cs_w double S-coordinate stretching curves at W-points Ipos double stations I-direction positions Jpos double stations J-direction positions h double bathymetry at RHO-points (sea_floor_depth) angle double angle between XI-axis and EAST (grid_angle_of_rotation_from_east_to_y) zeta float free-surface ubar float vertically integrated u-momentum component vbar float vertically integrated v-momentum component u float u-momentum component v float v-momentum component w float vertical momentum component omega float S-coordinate vertical momentum component temp float potential temperature salt float salinity rho float density anomaly AKv float vertical viscosity coefficient AKt float temperature vertical diffusion coefficient AKs float salinity vertical diffusion coefficient Pair float surface air pressure Uwind float surface u-wind component Vwind float surface v-wind component sustr float surface u-momentum stress svstr float surface v-momentum stress bustr float bottom u-momentum stress bvstr float bottom v-momentum stress s_rho double S-coordinate at RHO-points (ocean_s_coordinate_g1) s_w double S-coordinate at W-points (ocean_s_coordinate_g1) lon_rho double longitude of RHO-points (grid_longitude_at_cell_center) lat_rho double latitude of RHO-points (grid_latitude_at_cell_center) ocean_time double time since initialization NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. netCDF-3 3 classic netCDF-4 4 https://doi.org/10.25921/fztr-mf31 HTTPS Landing Page NCEI Dataset Landing Page Landing page for the dataset. information https://www.ncei.noaa.gov/products/weather-climate-models/co-ops-operational-forecast HTTPS Information CO-OPS Operational Forecast System NCEI model information page. information https://www.ncei.noaa.gov/oa/prod-model/index.html#operational-nowcast-and-forecast-hydrodynamic-model-systems-co-ops/access/ HTTPS Download NCEI Direct Download (Dataset Files) Direct download for the dataset. download https://www.ncei.noaa.gov/thredds/catalog/model/model.html HTML NCEI THREDDS THREDDS Data Server (TDS) for the dataset. download https://data.noaa.gov/onestop/collections?q=parentIdentifier%3D%22doi%3A10.25921%2Ffztr-mf31%22 HTTPS Regional OFS Models Access to the regional OFS models. information dataset The model output was produced by the NOAA National Weather Service, the NOAA National Ocean Service, and the NOAA Office of Oceanic and Atmospheric Research, and it is archived by the NOAA National Centers for Environmental Information. repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 asNeeded