gov.noaa.nodc:NCEP-RTOFS eng utf8 series NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-03-19T14:33:55Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2006-05-31 to 2017-03-21 2008-01-08 publication 2019-12-05 revision 2007-07-09 creation NOAA National Centers for Environmental Information gov.noaa.nodc:NCEP-RTOFS NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher NOAA National Centers for Environmental Prediction (NCEP) https://www.weather.gov/ncep/ HTTPS NOAA National Centers for Environmental Prediction (NCEP) website Institution web page information resourceProvider NOAA National Centers for Environmental Prediction https://www.weather.gov/ncep/ HTTPS NOAA National Centers for Environmental Prediction (NCEP) website Institution web page information author Liyan Liu NOAA National Centers for Environmental Prediction (NCEP) Outreach Liyan.Liu@noaa.gov https://www.weather.gov/ncep/ HTTPS NOAA National Centers for Environmental Prediction (NCEP) website Institution web page information pointOfContact NOAA National Centers for Environmental Prediction (NCEP) https://www.weather.gov/ncep/ HTTPS NOAA National Centers for Environmental Prediction (NCEP) website Institution web page information contributor tableDigital The NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) dataset comprises output fields from the daily operational RTOFS model runs conducted at the National Centers for Atmospheric Prediction. Each model run produces a series of gridded fields containing results of model computations for ocean temperature, salinity, currents, sea-surface height, and possibly other properties. The fields are encoded in the standard GRIdded Binary (GRIB) file format. NCEI compiles a series of files into monthly accessions to facilitate archival storage and public access. Two different sets of output fields are included: 1) daily 3-dimensional fields reported on the model's native hybrid (isopycnal plus z-level) vertical coordinates (note: prior to June 6, 2007, these fields are interpolated to z-levels); and 2) hourly fields reported for the surface level only. Each daily model run produces a 24-hr hindcast as well as forecasts out to 120 hours. This dataset is available to the public for a wide variety of uses including scientific research and analysis. completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:NCEP-RTOFS Preview graphic PNG 0026419 0037715 0037716 0038000 0038184 0038417 0038590 0038686 0038690 0038868 0039052 0039230 0041112 0041372 0041385 0041439 0041591 0044360 0045169 0046032 0046092 0046513 0048724 0050261 0050464 0050607 0050813 0050977 0051460 0051512 0051618 0051620 0051875 0052486 0053280 0054211 0055660 0057379 0057381 0058273 0059378 0060235 0060954 0062139 0062434 0062968 0063918 0064868 0065424 0066108 0066881 0067579 0068299 0068990 0069617 0070404 0071063 0071851 0072610 0073284 0073425 0073607 0074002 0074617 0075308 0077911 0079058 0082168 0083186 0084919 0086247 0087573 0089163 0090246 0092434 0093398 0094832 0098135 0099199 0100023 0101112 0101882 0104156 0104397 0105690 0108058 0109999 0111743 0112743 0113643 0114225 0114639 0115495 0116220 0116779 0117684 0118274 0119183 0119875 0120760 0121623 0122505 0123097 0123098 0125060 0125594 0126591 0127243 0127550 0129412 0129547 0130523 0131500 0133934 0137762 0138739 0140223 0141436 0145087 0146057 0150185 0152515 0155306 0156232 0156508 0156690 0156901 0157123 0157730 0159805 0161497 0162252 NCEI ACCESSION NUMBER 2017-03-30 publication CURRENT SPEED - EAST/WEST COMPONENT (U) CURRENT SPEED - NORTH/SOUTH COMPONENT (V) FLUX - HEAT MIXED LAYER DEPTH PRECIPITATION SALINITY SALINITY - SURFACE WATER SEA SURFACE TEMPERATURE SEA SURFACE TOPOGRAPHY WATER DENSITY WATER TEMPERATURE theme NODC DATA TYPES THESAURUS model output theme NODC OBSERVATION TYPES THESAURUS NOAA National Centers for Environmental Prediction dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA National Centers for Environmental Prediction dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS NOAA Real-Time Ocean Forecast System (RTOFS) project NODC PROJECT NAMES THESAURUS Caribbean Sea Coastal Waters of Florida Coastal Waters of Gulf of Mexico Gulf of Maine Gulf of Mexico Mid-Atlantic Bight North Atlantic Ocean Northwest Atlantic Ocean (limit-40 W) South Atlantic Ocean Southwest Atlantic Ocean (limit-20 W) TOGA Area - Atlantic place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NWS/NCEP > National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. 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 information custodian EARTH SCIENCE > ATMOSPHERE > PRECIPITATION EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SURFACE SALINITY EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN MIXED LAYER EARTH SCIENCE > OCEANS > OCEAN HEAT BUDGET > HEAT FLUX EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. 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 information custodian circulation currents data assimilation eddy-resolving fronts model ocean ocean forecast ocean model salinity sea-surface elevation sea-surface height temperature velocity theme Originator Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MAINE OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. 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 information custodian accessLevel: Public otherRestrictions Cite as: NOAA National Centers for Environmental Prediction (2008). Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2006-05-31 to 2017-03-21. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/NCEP-RTOFS. Accessed [date]. 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 Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. From the data source: While Atlantic RTOFS is an operational model, we cannot guarantee the timeliness or accuracy of the model data and figures offered on this site. Please see our disclaimer for more information. NOAA National Centers for Environmental Prediction (2007). Documentation for the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) models from the NOAA National Centers for Environmental Prediction (NCEP) (NCEI Accession 0026419). https://www.ncei.noaa.gov/archive/accession/0026419. In NOAA National Centers for Environmental Prediction. Output fields from the NOAA Atlantic Real-Time Ocean Forecast System (RTOFS) for 2006-05-31 to 2017-03-21. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/NCEP-RTOFS. 2007-07-09 publication NOAA National Centers for Environmental Information gov.noaa.nodc:0026419 https://www.ncei.noaa.gov/archive/accession/0026419 HTTPS https://www.ncei.noaa.gov/archive/accession/0026419 Documentation for the NOAA Atlantic RTOFS model information NOAA National Centers for Environmental Prediction https://www.weather.gov/ncep/ HTTPS NOAA National Centers for Environmental Prediction (NCEP) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference userGuide Atlantic Real-Time Ocean Forecast System (Discontinued) 2006-05-31 publication http://polar.ncep.noaa.gov/ofs/ HTTP Atlantic Real-Time Ocean Forecast System (Discontinued) web site information NOAA National Centers for Environmental Prediction (NCEP) https://www.weather.gov/ncep/ HTTPS NOAA National Centers for Environmental Prediction (NCEP) website Institution web page information publisher crossReference program Mehra, A., & Rivin, I. (2010). A Real Time Ocean Forecast System for the North Atlantic Ocean. Terrestrial, Atmospheric and Oceanic Sciences, 21(1), 211. https://doi.org/10.3319/tao.2009.04.16.01(iwnop) 2010 publication International DOI Foundation (IDF) https://doi.org/10.3319/tao.2009.04.16.01(iwnop) https://doi.org/10.3319/tao.2009.04.16.01(iwnop) HTTPS https://doi.org/10.3319/tao.2009.04.16.01(iwnop) journal article information Mehra, Avichal author Rivin, Ilya author Springer Science and Business Media LLC publisher documentDigital Terr. Atmos. Ocean. Sci. 21(1) ISSN 1017-0839, p. 211 crossReference sciencePaper eng; USA utf8 environment oceans geoscientificInformation climatologyMeteorologyAtmosphere -105.03 22.215 -26.5 75.245 2006-05-31 2017-03-21 The dynamical model is HYCOM: - The model uses curvilinear coordinates in the horizontal and hybrid vertical coordinates in the vertical. - An overview of the HYbrid Coordinate Ocean Model (HYCOM) - Orthogonal grid (1200 x 1684 points) - 26 vertical coordinates (21 isopycnal, 5 z-level) Surface Forcing: - forcing fields from 3-hour NCEP (GDAS/GFS) model Open Boundaries: - Relaxed to NCEP climatology. Also relaxed to climatology in the Straits of Gibraltar region Tides: - M2, S2, N2, K1, P1, O1, K2, Q1 tidal modes - Body and boundary tides Rivers: - From daily USGS data and RIVDIS climatology Data Assimilation: - SST: from GOES AVHRR and in-situ - SSH, T, S: using SLA from JASON GFO (not activated) - T,S: from ARGOS, XBT, CTD (not activated) Model Parameters: - Time step: split-explicit 150 sec baroclinic, 5 sec barotropic - Advection scheme: 2nd order Flux Corrected Transport (FCT) with density and salinity as the advected scalars - Horizontal momentum viscosity: additive laplacian with biharmonic operators --+ Laplacian: deformation factor = 0.1, diffusion velocity = 0.005 m/s --+ Biharmonic: deformation factor = 0.0, diffusion velocity = 0.005 m/s - Laplacian scalar diffusion (diffusion velocity: 0.005 m/s) - Vertical viscosity and mixing: GISS - Quadratic bottom friction coefficient: 0.003 - Bottom boundary layer thickness: 10 m Documentation for RTOFS model output can be obtained from NCEI accession 0026419. As it becomes available, new documentation about RTOFS model output and/or processing will be added to NCEI accession 0026419. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact 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. GRIB 1 GRIB 2 13039903.42 https://www.ncei.noaa.gov/archive/accession/NCEP-RTOFS HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/metadata/granule/geoportal/?from=0&size=10&esdsl=%7B%22query%22%3A%7B%22bool%22%3A%7B%22must%22%3A%5B%7B%22query_string%22%3A%7B%22analyze_wildcard%22%3Atrue%2C%22query%22%3A%22fileid%3ANCEP-RTOFS.*%22%7D%7D%5D%7D%7D%7D#searchPanel HTTPS Web browser Granule Search Search for data granules belonging to this collection (a granule is the smallest aggregation of data that can be independently described and retrieved). search series NCEI Accession 0026419 v1.1 was published. 2007-07-09T18:48:28Z NCEI Accession 0026419 was revised and v1.2 was published. 2007-07-09T18:48:28Z NCEI Accession 0037716 v1.1 was published. 2007-12-27T20:11:39Z NCEI Accession 0037715 v1.1 was published. 2008-01-08T18:05:12Z NCEI Accession 0038000 v1.1 was published. 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NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian