gov.noaa.ncdc:C00692 eng; USA utf8 dataset 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 2025-07-30T13:04:39 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Global Ensemble Forecast System (GEFS) 2.5 Degree GENS [2.5 Deg.] 2007-10-01 publication NCEI DSI 6178 gov.noaa.ncdc:C00692 NOAA National Centers for Environmental Information publisher NOAA Environmental Modeling Center author NOAA Environmental Modeling Center https://www.emc.ncep.noaa.gov/emc/pages/numerical_forecast_systems/gefs.php Web Browser EMC GEFS Web Site Web site providing overview and technical documentation for the GEFS. information originator modelDigital The Global Ensemble Forecast System (GEFS) is a weather forecast model made up of 21 separate forecasts, or ensemble members. The National Centers for Environmental Prediction (NCEP) started the GEFS to address the nature of uncertainty in weather observations, which are used to initialize weather forecast models. The proverbial butterfly flapping her wings can have a cascading effect leading to wind gusts thousands of miles away. This extreme example illustrates that tiny, unnoticeable differences between reality and what is actually measured can, over time, lead to noticeable differences between what a weather model forecast predicts and reality itself. The GEFS attempts to quantify the amount of uncertainty in a forecast by generating an ensemble of multiple forecasts, each minutely different, or perturbed, from the original observations. With global coverage, GEFS is produced four times a day with weather forecasts going out to 16 days and a 6 hour temporal resolution. This dataset has 2.5 degree horizontal resolution. Quantify the amount of uncertainty in mesoscale guidance by generating an ensemble of multiple forecasts, each minutely different, or perturbed, from the original observations. completed historicalArchive NOAA National Centers for Environmental Information Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern pointOfContact notPlanned Earth Science > Atmosphere > Altitude > Geopotential Height Earth Science > Atmosphere > Altitude > Planetary Boundary Layer Height Earth Science > Atmosphere > Altitude > Tropopause Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements Earth Science > Atmosphere > Atmospheric Pressure > Pressure Thickness Earth 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Processes > Evaporation Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Total Precipitable Water Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles Earth Science > Atmosphere > Atmospheric Winds > Boundary Layer Winds Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Convection Earth Science > Atmosphere > Atmospheric Winds > Surface Winds Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Vertical Wind Velocity/Speed Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Vorticity Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Wind Shear Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain > Freezing Rain Earth Science > Atmosphere > Precipitation > Precipitation Amount Earth Science > Atmosphere > Precipitation > Precipitation Rate Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain Earth Science > Atmosphere > Precipitation > Solid Precipitation > Ice Pellets > Sleet Earth Science > Atmosphere > Precipitation > Solid Precipitation > Snow Earth Science > Atmosphere > Air Quality > Tropospheric Ozone Earth Science > Terrestrial Hydrosphere > Snow/Ice > Albedo Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Cover Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Depth Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Water Equivalent Earth Science > Oceans > Sea Ice > Sea Ice Concentration Earth Science > Land Surface > Surface Radiative Properties > Albedo Earth Science > Land Surface > Land Use/Land Cover > Land Use/Land Cover Classification > Vegetation Index Earth Science > Land Surface > Soils > Soil Moisture/Water Content Earth Science > Land Surface > Soils > Soil Temperature Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature 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 Geographic Region > Global 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 Vertical Location > Boundary Layer Vertical Location > Land Surface Vertical Location > Sea Surface Vertical Location > Troposphere Vertical Location > Stratosphere stratum 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 NOMADS > The NOAA Operational Model Archive and Distribution System project Global Change Master Directory (GCMD) Project 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 250 km - < 500 km or approximately 2.5 degrees - < 5.0 degrees dataResolution Global Change Master Directory (GCMD) Horizontal Data Resolution 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/NESDIS/NCDC > National Climatic Data Center, NESDIS, 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 grid 277500 eng; USA climatologyMeteorologyAtmosphere 1 -180.0 180.0 -90.0 90.0 ground condition 2008-01-01 2020-09-23 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. GRIB 2 2 http://www.nco.ncep.noaa.gov/pmb/docs/grib2/ https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc:C00692/html HTTPS Landing Page NCEI Dataset Landing Page Landing page for the dataset. information https://www.ncei.noaa.gov/products/weather-climate-models/global-ensemble-forecast HTTPS Information NCEI Product Information Page Description of the data and related resources. information https://www.ncei.noaa.gov/has/HAS.FileAppRouter?datasetname=GFS&subqueryby=STATION&applname=&outdest=FILE HTTPS Data Search Application NCEI Dataset Order Select and order files in the offline archive. order https://registry.opendata.aws/noaa-gefs/ HTTPS Information Registry of Open Data on AWS Information on AWS data access. 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 Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.