Global Data Assimilation System (GDAS)
(MI_Metadata)
fileIdentifier: gov.noaa.ncdc:C00379
language: eng; USA
characterSet: (MD_CharacterSetCode) utf8
hierarchyLevel: (MD_ScopeCode) dataset
contact: (CI_ResponsibleParty)
organisationName: NOAA National Centers for Environmental Information
contactInfo: (CI_Contact)
address: (CI_Address)
electronicMailAddress: ncei.info@noaa.gov
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/contact
name: NCEI Contact Information
description: Information for contacts at NCEI.
function: (CI_OnLineFunctionCode) information
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)
return to top
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
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: NOAA National Centers for Environmental Information
role: (CI_RoleCode) publisher
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: DOC/NOAA/NWS/NCEP/EMC > Environmental Modeling Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
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.
function: (CI_OnLineFunctionCode) information
role: (CI_RoleCode) originator
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: DOC/NOAA/NWS/NCEP/EMC > Environmental Modeling Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
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.
function: (CI_OnLineFunctionCode) information
role: (CI_RoleCode) author
presentationForm: (CI_PresentationFormCode) modelDigital
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.
credit:
status: (MD_ProgressCode) onGoing
pointOfContact: (CI_ResponsibleParty)
organisationName: NOAA National Centers for Environmental Information
positionName: Customer Engagement Branch
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: 1-828-271-4800
facsimile: 1-828-271-4876
address: (CI_Address)
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
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov
protocol: HTTPS
applicationProfile: Web Browser
name: NOAA National Centers for Environmental Information (NCEI)
description: NCEI home page with information, data access and contact information.
function: (CI_OnLineFunctionCode) information
hoursOfService: 8:00 - 6:00 Eastern
role: (CI_RoleCode) pointOfContact
pointOfContact: (CI_ResponsibleParty)
organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
contactInfo: (CI_Contact)
address: (CI_Address)
electronicMailAddress: nomads.ncdc@noaa.gov
role: (CI_RoleCode) pointOfContact
resourceMaintenance: (MD_MaintenanceInformation)
maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) daily
descriptiveKeywords: (MD_Keywords)
keyword: Earth Science > Atmosphere > Altitude > Geopotential Height
keyword: Earth Science > Atmosphere > Altitude > Planetary Boundary Layer Height
keyword: Earth Science > Atmosphere > Altitude > Tropopause
keyword: Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements
keyword: Earth Science > Atmosphere > Atmospheric Pressure > Pressure Thickness
keyword: Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure
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
type: (MD_KeywordTypeCode) theme
thesaurusName: (CI_Citation)
title: Global Change Master Directory (GCMD) Science Keywords
date: (CI_Date)
date: 2018
dateType: (CI_DateTypeCode) revision
edition: Version 8.6
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
protocol: HTTPS
applicationProfile: Web Browser
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.
function: (CI_OnLineFunctionCode) information
role: (CI_RoleCode) publisher
descriptiveKeywords: (MD_Keywords)
keyword: Geographic Region > Global
type: (MD_KeywordTypeCode) place
thesaurusName: (CI_Citation)
title: Global Change Master Directory (GCMD) Location Keywords
date: (CI_Date)
date: 2018
dateType: (CI_DateTypeCode) revision
edition: Version 8.6
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
protocol: HTTPS
applicationProfile: Web Browser
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.
function: (CI_OnLineFunctionCode) information
role: (CI_RoleCode) publisher
descriptiveKeywords: (MD_Keywords)
keyword: Vertical Location > Boundary Layer
keyword: Vertical Location > Land Surface
keyword: Vertical Location > Sea Surface
keyword: Vertical Location > Troposphere
keyword: Vertical Location > Stratosphere
type: (MD_KeywordTypeCode) stratum
thesaurusName: (CI_Citation)
title: Global Change Master Directory (GCMD) Location Keywords
date: (CI_Date)
date: 2018
dateType: (CI_DateTypeCode) revision
edition: Version 8.6
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
protocol: HTTPS
applicationProfile: Web Browser
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.
function: (CI_OnLineFunctionCode) information
role: (CI_RoleCode) publisher
descriptiveKeywords: (MD_Keywords)
keyword: NOMADS > The NOAA Operational Model Archive and Distribution System
type: (MD_KeywordTypeCode) project
thesaurusName: (CI_Citation)
title: Global Change Master Directory (GCMD) Project Keywords
date: (CI_Date)
date: 2018
dateType: (CI_DateTypeCode) revision
edition: Version 8.6
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
protocol: HTTPS
applicationProfile: Web Browser
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.
function: (CI_OnLineFunctionCode) information
role: (CI_RoleCode) publisher
descriptiveKeywords: (MD_Keywords)
keyword: DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
type: (MD_KeywordTypeCode) dataCentre
thesaurusName: (CI_Citation)
title: Global Change Master Directory (GCMD) Data Center Keywords
date: (CI_Date)
date: 2018
dateType: (CI_DateTypeCode) revision
edition: Version 8.6
citedResponsibleParty: (CI_ResponsibleParty)
organisationName: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords
protocol: HTTPS
applicationProfile: Web Browser
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.
function: (CI_OnLineFunctionCode) information
role: (CI_RoleCode) publisher
spatialRepresentationType: (MD_SpatialRepresentationTypeCode)
spatialResolution:
language: eng; USA
topicCategory: (MD_TopicCategoryCode) climatologyMeteorologyAtmosphere
extent: (EX_Extent)
description:
geographicElement: (EX_GeographicBoundingBox)
extentTypeCode: 1
westBoundLongitude: -180.0
eastBoundLongitude: 180.0
southBoundLatitude: -90.0
northBoundLatitude: 90.0
temporalElement: (EX_TemporalExtent)
extent:
TimePeriod:
description: ground condition
beginPosition: 2001-01-01
endPosition:
return to top
distributionInfo: (MD_Distribution)
distributor: (MD_Distributor)
distributorContact: (CI_ResponsibleParty)
organisationName: NOAA National Centers for Environmental Information
contactInfo: (CI_Contact)
address: (CI_Address)
electronicMailAddress: ncei.info@noaa.gov
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/contact
name: NCEI Contact Information
description: Information for contacts at NCEI.
function: (CI_OnLineFunctionCode) information
role: (CI_RoleCode) distributor
distributionOrderProcess: (MD_StandardOrderProcess)
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.
distributorFormat: (MD_Format)
name: BUFR
version: (missing)
distributorFormat: (MD_Format)
name: GRIB 2
version: 2
distributorTransferOptions: (MD_DigitalTransferOptions)
onLine: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc:C00379/html
protocol: HTTPS
applicationProfile: Landing Page
name: NCEI Dataset Landing Page
description: Landing page for the dataset.
function: (CI_OnLineFunctionCode) information
distributorTransferOptions: (MD_DigitalTransferOptions)
onLine: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/products/weather-climate-models/global-data-assimilation
protocol: HTTPS
applicationProfile: Information
name: NCEI Product Information Page
description: Description of the data and related resources.
function: (CI_OnLineFunctionCode) information
distributorTransferOptions: (MD_DigitalTransferOptions)
onLine: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/data/ncep-global-data-assimilation/access/
protocol: HTTPS
applicationProfile: Download
name: NCEI Direct Download (Dataset Files)
description: Direct download for the dataset.
function: (CI_OnLineFunctionCode) download
distributorTransferOptions: (MD_DigitalTransferOptions)
onLine: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/has/HAS.FileAppRouter?datasetname=GDAS_DyBuf&subqueryby=STATION&applname=&outdest=FILE
protocol: HTTPS
applicationProfile: Data Search Application
name: NCEI Dataset Order (GDAS - Daily Bufr Files)
description: Select and order files in the offline archive.
function: (CI_OnLineFunctionCode) order
distributorTransferOptions: (MD_DigitalTransferOptions)
onLine: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/has/HAS.FileAppRouter?datasetname=GDAS_Hrly&subqueryby=STATION&applname=&outdest=FILE
protocol: HTTPS
applicationProfile: Data Search Application
name: NCEI Dataset Order (GDAS - Hourly Tar Files)
description: Select and order files in the offline archive.
function: (CI_OnLineFunctionCode) order
distributorTransferOptions: (MD_DigitalTransferOptions)
onLine: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/has/HAS.FileAppRouter?datasetname=GDAS_Dy&subqueryby=STATION&applname=&outdest=FILE
protocol: HTTPS
applicationProfile: Data Search Application
name: NCEI Dataset Order (GDAS - Daily Tar Files)
description: Select and order files in the offline archive.
function: (CI_OnLineFunctionCode) order
return to top
dataQualityInfo: (DQ_DataQuality)
scope: (DQ_Scope)
level: (MD_ScopeCode) repository
levelDescription: (MD_ScopeDescription)
other: NOAA National Centers for Environmental Information
lineage: (LI_Lineage)
processStep: (LE_ProcessStep)
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
return to top
metadataMaintenance: (MD_MaintenanceInformation)
maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) asNeeded
maintenanceNote: Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.
