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Global Data Assimilation System (GDAS)


 (MI_Metadata)
    fileIdentifier:  gov.noaa.ncdc:C00379
    language:  eng; USA
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        organisationName:  NOAA National Centers for Environmental Information
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                electronicMailAddress:  ncei.info@noaa.gov
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                linkage: https://www.ncei.noaa.gov/contact
                name:  NCEI Contact Information
                description:  Information for contacts at NCEI.
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        role:  (CI_RoleCode) pointOfContact
    dateStamp:  2023-06-23
    metadataStandardName:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
    metadataStandardVersion:  ISO 19115-2:2009(E)
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  Global Data Assimilation System (GDAS)
            date:  (CI_Date)
                date:  2001-01-01
                dateType:  (CI_DateTypeCode) publication
            identifier:  (MD_Identifier)
                code:  NCEI DSI 6172
            identifier:  (MD_Identifier)
                code:  gov.noaa.ncdc:C00379
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                organisationName:  NOAA National Centers for Environmental Information
                role:  (CI_RoleCode) publisher
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                organisationName:  DOC/NOAA/NWS/NCEP/EMC > Environmental Modeling Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
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                        linkage: http://www.emc.ncep.noaa.gov/gmb/gdas/
                        applicationProfile:  Web Browser
                        name:  EMC GDAS Web Site
                        description:  Web site providing overview and technical documentation for the GDAS.
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                        linkage: http://www.emc.ncep.noaa.gov/gmb/gdas/
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                        name:  EMC GDAS Web Site
                        description:  Web site providing overview and technical documentation for the GDAS.
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        abstract:  The Global Data Assimilation System (GDAS) is the system used by the Global Forecast System (GFS) model to place observations into a gridded model space for the purpose of starting, or initializing, weather forecasts with observed data. GDAS adds the following types of observations to a gridded, 3-D, model space: surface observations, balloon data, wind profiler data, aircraft reports, buoy observations, radar observations, and satellite observations. GDAS data are available as both input observations to GDAS and gridded output fields from GDAS. Gridded GDAS output data can be used to start the GFS model. Due to the diverse nature of the assimilated data types, input data are available in a variety of data formats, primarily Binary Universal Form for the Representation of meteorological data (BUFR) and Institute of Electrical and Electronics Engineers (IEEE) binary. The GDAS output is World Meteorological Organization (WMO) Gridded Binary (GRIB).
        purpose:  To provide initialization state grids for starting the Global Forecast System (GFS) model.
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                    deliveryPoint:  151 Patton Avenue
                    deliveryPoint:  Veach-Baley Federal Building, Room 468
                    city:  Asheville
                    administrativeArea:  NC
                    postalCode:  28801-5001
                    country:  USA
                    electronicMailAddress:  ncei.orders@noaa.gov
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            keyword:  Earth Science > Atmosphere > Altitude > Geopotential Height
            keyword:  Earth Science > Atmosphere > Altitude > Planetary Boundary Layer Height
            keyword:  Earth Science > Atmosphere > Altitude > Tropopause
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            keyword:  Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure
            keyword:  Earth Science > Atmosphere > Atmospheric Pressure > Albedo
            keyword:  Earth Science > Atmosphere > Atmospheric Pressure > Land Cover
            keyword:  Earth Science > Atmosphere > Atmospheric Pressure > Soil Moisture/Water Content
            keyword:  Earth Science > Atmosphere > Atmospheric Pressure > Soil Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Pressure > Sea Surface Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Radiation > Albedo
            keyword:  Earth Science > Atmosphere > Atmospheric Radiation > Incoming Solar Radiation
            keyword:  Earth Science > Atmosphere > Atmospheric Radiation > Longwave Radiation
            keyword:  Earth Science > Atmosphere > Atmospheric Radiation > Radiative Flux
            keyword:  Earth Science > Atmosphere > Atmospheric Radiation > Shortwave Radiation
            keyword:  Earth Science > Atmosphere > Atmospheric Radiation > Solar Radiation
            keyword:  Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Temperature > Atmospheric Stability
            keyword:  Earth Science > Atmosphere > Atmospheric Temperature > Boundary Layer Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Temperature > Dew Point Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Temperature > Upper Air Temperature > Vertical Profiles > Inversion Height
            keyword:  Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Potential Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Skin Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Temperature > Upper Air Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Dew Point Temperature
            keyword:  Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Processes > Evaporation
            keyword:  Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity
            keyword:  Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Total Precipitable Water
            keyword:  Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor
            keyword:  Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles
            keyword:  Earth Science > Atmosphere > Atmospheric Winds > Boundary Layer Winds
            keyword:  Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Convection
            keyword:  Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds > Flight Level Winds
            keyword:  Earth Science > Atmosphere > Atmospheric Winds > Surface Winds
            keyword:  Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds
            keyword:  Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Vertical Wind Velocity/Speed
            keyword:  Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Vorticity
            keyword:  Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles
            keyword:  Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Wind Shear
            keyword:  Earth Science > Atmosphere > Clouds > Tropospheric/High-Level Clouds (observed/Analyzed)
            keyword:  Earth Science > Atmosphere > Clouds > Tropospheric/Low Level Clouds (observed/Analyzed)
            keyword:  Earth Science > Atmosphere > Clouds > Tropospheric/Mid-Level Clouds (observed/Analyzed)
            keyword:  Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain > Freezing Rain
            keyword:  Earth Science > Atmosphere > Precipitation > Precipitation Amount
            keyword:  Earth Science > Atmosphere > Precipitation > Precipitation Rate
            keyword:  Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain
            keyword:  Earth Science > Atmosphere > Precipitation > Solid Precipitation > Ice Pellets > Sleet
            keyword:  Earth Science > Atmosphere > Precipitation > Solid Precipitation > Snow
            keyword:  Earth Science > Terrestrial Hydrosphere > Snow/Ice > Albedo
            keyword:  Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Cover
            keyword:  Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Depth
            keyword:  Earth Science > Oceans > Sea Ice > Sea Ice Concentration
            keyword:  Earth Science > Land Surface > Surface Radiative Properties > Albedo
            keyword:  Earth Science > Land Surface > Land Use/Land Cover > Land Use/Land Cover Classification > Vegetation Index
            keyword:  Earth Science > Land Surface > Soils > Soil Moisture/Water Content
            keyword:  Earth Science > Land Surface > Soils > Soil Temperature
            keyword:  Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature
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                title:  Global Change Master Directory (GCMD) Science Keywords
                date:  (CI_Date)
                    date:  2018
                    dateType:  (CI_DateTypeCode) revision
                edition:  Version 8.6
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                    organisationName:  Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
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                        onlineResource:  (CI_OnlineResource)
                            linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
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                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  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.
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            keyword:  Geographic Region > Global
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                title:  Global Change Master Directory (GCMD) Location Keywords
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                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  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.
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            keyword:  Vertical Location > Boundary Layer
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                            description:  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.
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            keyword:  NOMADS > The NOAA Operational Model Archive and Distribution System
            type:  (MD_KeywordTypeCode) project
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                title:  Global Change Master Directory (GCMD) Project Keywords
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                    dateType:  (CI_DateTypeCode) revision
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            keyword:  DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
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                    description:  ground condition
                    beginPosition:  2001-01-01
                    endPosition:
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                fees:  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.
                orderingInstructions:  Contact NCEI for other distribution options and instructions.
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                other:  NOAA National Centers for Environmental Information
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                description:  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.
                dateTime:
                  DateTime:  2015-04-22T00:00:00
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        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote:  Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.