NOAA Next Generation Radar (NEXRAD) Level 3 Products
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Metadata: 
  File identifier: 
      gov.noaa.ncdc:C00708
  Language: 
      eng; USA
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author:  title: NCEI (pointOfContact)
    Responsible party: uuid: 440b3ac2-64a5-46e2-9846-38305718b644
      Organisation name: 
          NOAA National Centers for Environmental Information
      Contact info: 
        Contact: 
          Address: 
            Address: 
              Electronic mail address: 
                  ncei.info@noaa.gov
          Online Resource: 
            Online Resource: 
              Linkage: 
                URL: 
                  https://www.ncei.noaa.gov/contact
              Name: 
                  NCEI Contact Information
              Description: 
                  Information for contacts at NCEI.
              Function: 
                Online function code: 
                  information
      Role: 
        Role code: 
          pointOfContact
  Date stamp: 
      2023-08-22
  Metadata standard name: 
      ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
  Metadata standard version: 
      ISO 19115-2:2009(E)
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Identification info: Data identification: Citation: Citation: Title: NOAA Next Generation Radar (NEXRAD) Level 3 Products Alternate title: Weather Radar (Level III) Date: Date: Date: 1992 Date type: Date type code: publication Identifier: Identifier: Code: gov.noaa.class:wxradar Identifier: Identifier: Code: NCEI DSI 7000 Identifier: Identifier: Code: gov.noaa.ncdc:C00708 Cited responsible party: Responsible party: Organisation name: NOAA National Centers for Environmental Information Role: Role code: publisher Cited responsible party: Responsible party: Organisation name: NOAA National Weather Service (NWS) Radar Operations Center Contact info: Contact: Address: Address: Delivery point: 1200 Westheimer Drive Delivery point: Radar Operations Center, NOAA/NWS City: Norman Administrative area: OK Postal code: 73069 Country: USA Role: Role code: originator Cited responsible party: Responsible party: Organisation name: NOAA National Weather Service (NWS) Radar Operations Center Contact info: Contact: Address: Address: Delivery point: 1200 Westheimer Drive Delivery point: Radar Operations Center, NOAA/NWS City: Norman Administrative area: OK Postal code: 73069 Country: USA Role: Role code: author Presentation form: Presentation form code: imageDigital Abstract: This dataset consists of Level 3 weather radar products collected from Next-Generation Radar (NEXRAD) stations located in the contiguous United States, Alaska, Hawaii, U.S. territories and at military base sites. NEXRAD is a network of 160 high-resolution Doppler weather radars operated by the NOAA National Weather Service (NWS), the Federal Aviation Administration (FAA), and the U.S. Air Force (USAF). Doppler radars detect atmospheric precipitation and winds, which allow scientists to track and anticipate weather events, such as rain, ice pellets, snow, hail, and tornadoes, as well as some non-weather objects like birds and insects. NEXRAD stations use the Weather Surveillance Radar - 1988, Doppler (WSR-88D) system. This is a 10 cm wavelength (S-Band) radar that operates at a frequency between 2,700 and 3,000 MHz. The radar system operates in two basic modes: a slow-scanning Clear Air Mode (Mode B) for analyzing air movements when there is little or no precipitation activity in the area, and a Precipitation Mode (Mode A) with a faster scan for tracking active weather. The two modes employ nine Volume Coverage Patterns (VCPs) to adequately sample the atmosphere based on weather conditions. A VCP is a series of 360 degree sweeps of the antenna at pre-determined elevation angles and pulse repetition frequencies completed in a specified period of time. The radar scan times 4.5, 5, 6 or 10 minutes depending on the selected VCP. During 2008, the WSR-88D radars were upgraded to produce increased spatial resolution data, called Super Resolution. The earlier Legacy Resolution data provides radar reflectivity at 1.0 degree azimuthal by 1 km range gate resolution to a range of 460 km, and Doppler velocity and spectrum width at 1.0 degree azimuthal by 250 m range gate resolution to a range of 230 km. The upgraded Super Resolution data provides radar reflectivity at 0.5 degree azimuthal by 250 m range gate resolution to a range of 460 km, and Doppler velocity and spectrum width at 0.5 degree azimuthal by 250 m range gate resolution to a range of 300 km. Super resolution makes a compromise of slightly decreased noise reduction for a large gain in resolution. In 2010, the deployment of the Dual Polarization (Dual Pol) capability to NEXRAD sites began with the first operational Dual Pol radar in May 2011. Dual Pol radar capability adds vertical polarization to the previous horizontal radar waves, in order to more accurately discern the return signal. This allows the radar to better distinguish between types of precipitation (e.g., rain, hail and snow), improves rainfall estimates, improves data retrieval in mountainous terrain, and aids in removal of non-weather artifacts. The NEXRAD products are divided in two data processing levels. The lower Level 2 data are base products at original resolution. Level 2 data are recorded at all NWS and most USAF and FAA WSR-88D sites. From the Level 2 quantities, computer processing generates numerous meteorological analysis Level 3 products. The Level 3 data consists of reduced resolution, low-bandwidth, base products as well as many derived, post-processed products. Level 3 products are recorded at most U.S. sites, though non-US sites do not have Level 3 products. There are over 40 Level 3 products available from the NCDC. General products for Level 3 include the base and composite reflectivity, storm relative velocity, vertical integrated liquid, echo tops and VAD wind profile. Precipitation products for Level 3 include estimated ground accumulated rainfall amounts for one and three hour periods, storm totals, and digital arrays. Estimates are based on reflectivity to rainfall rate (Z-R) relationships. Overlay products for Level 3 are alphanumeric data that give detailed information on certain parameters for an identified storm cell. These include storm structure, hail index, mesocyclone identification, tornadic vortex signature, and storm tracking information. Radar messages for Level 3 are sent by the radar site to users in order to know more about the radar status and special product data. NEXRAD data are provided to the NOAA National Centers for Environmental Information (NCEI) for archiving and dissemination to users. Data coverage varies by station and ranges from May 1992 to 1 day from present. Most stations began observing in the mid-1990s, and most period of records are continuous. Purpose: Level-2 NEXRAD data include three meteorological base data quantities: reflectivity, mean radial velocity, and spectrum width. With the advent of dual polarization beginning in 2011, additional base products of differential reflectivity, correlation coefficient and differential phase are available. NEXRAD Level 3 products are used to remotely detect atmospheric features, such as precipitation, precipitation-type, storms, turbulence and wind, for operational forecasting and data research analysis. Status: Progress code: onGoing Point of contact: Responsible party: Organisation name: NOAA National Centers for Environmental Information Position name: Customer Engagement Branch Contact info: Contact: Phone: Telephone: Voice: 1-828-271-4800 Facsimile: 1-828-271-4876 Address: Address: Delivery point: 151 Patton Avenue Delivery point: Veach-Baley Federal Building, Room 468 City: Asheville Administrative area: NC Postal code: 28801-5001 Country: USA Electronic mail address: ncei.orders@noaa.gov Online Resource: Online Resource: Linkage: URL: https://www.ncei.noaa.gov Protocol: HTTPS Application profile: Web Browser Name: NOAA National Centers for Environmental Information (NCEI) Description: NCEI home page with information, data access and contact information. Function: Online function code: information Hours of service: 8:00 - 6:00 Eastern Role: Role code: pointOfContact Resource maintenance: Maintenance information: Maintenance and update frequency: Maintenance frequency code: continual Graphic overview: BrowseGraphic: File name: https://www.ncei.noaa.gov/pub/data/metadata/images/C00708_fdr_baserefl.jpg File description: NEXRAD reflectivity image File type: JPEG Descriptive keywords: Keywords: Keyword: Earth Science > Spectral/Engineering > Radar > Doppler Velocity Keyword: Earth Science > Spectral/Engineering > Radar > Radar Cross-Section Keyword: Earth Science > Spectral/Engineering > Radar > Radar Reflectivity Keyword: Earth Science > Spectral/Engineering > Radar > Spectrum Width Keyword: Earth Science > Spectral/Engineering > Sensor Characteristics > Viewing Geometry Keyword: Earth Science > Human Dimensions > Natural Hazards > Tropical Cyclones > Typhoons Keyword: Earth Science > Atmosphere > Weather Events > Tropical Cyclones Keyword: Earth Science > Atmosphere > Weather Events > Hurricanes Keyword: Earth Science > Atmosphere > Weather Events > Rain Storms Keyword: Earth Science > Atmosphere > Weather Events > Tornados Keyword: Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds > Boundary Layer Winds Keyword: Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds > Wind Speed Keyword: Earth Science > Atmosphere > Atmospheric Winds > Upper Level Winds > Wind Direction Keyword: Earth Science > Atmosphere > Atmospheric Winds > Wind Profiles Keyword: Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Vertical Wind Velocity/Speed Keyword: Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Wind Shear Keyword: Earth Science > Atmosphere > Atmospheric Winds > Wind Dynamics > Convection Keyword: Earth Science > Atmosphere > Clouds > Cloud Microphysics > Cloud Liquid Water/Ice Keyword: Earth Science > Atmosphere > Clouds > Convective Clouds/Systems (observed/Analyzed) > Mesoscale Convective Complex 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 > Snow Keyword: Earth Science > Atmosphere > Precipitation > Solid Precipitation > Hail Keyword: Earth Science Services > Environmental Advisories > Hydrological Advisories > Floods Keyword: Earth Science Services > Environmental Advisories > Weather/Climate Advisories > Severe Weather Type: Keyword type code: theme Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Science Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: 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: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: Radar Type: Keyword type code: product Thesaurus name: Citation: Title: Keyword Thesaurus Title Date: missing Descriptive keywords: Keywords: Keyword: Continent > North America > United States Of America Keyword: Continent > Asia > Eastern Asia > South Korea Keyword: Geographic Region > Mid-Latitude Keyword: Geographic Region > Northern Hemisphere Keyword: Ocean > Atlantic Ocean > North Atlantic Ocean > Azores Keyword: Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Puerto Rico Keyword: Ocean > Atlantic Ocean > North Atlantic Ocean > Gulf Of Mexico Keyword: Ocean > Pacific Ocean > Central Pacific Ocean > Guam Keyword: Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands Keyword: Ocean > Pacific Ocean > Central Pacific Ocean > Kiribati Keyword: Ocean > Pacific Ocean > North Pacific Ocean > Bering Sea Keyword: Ocean > Pacific Ocean > North Pacific Ocean > Gulf Of Alaska Keyword: Ocean > Pacific Ocean > North Pacific Ocean > Okinawa Keyword: Ocean > Pacific Ocean > Western Pacific Ocean > East China Sea Keyword: Ocean > Pacific Ocean > Western Pacific Ocean > Yellow Sea Type: Keyword type code: place Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Location Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: 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: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: Vertical Location > Boundary Layer Keyword: Vertical Location > Land Surface Keyword: Vertical Location > Troposphere Type: Keyword type code: stratum Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Location Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: 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: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: In Situ Land-based Platforms > Weather Stations/Networks > Weather Stations Type: Keyword type code: platform Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Platform Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: 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: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: NOAA OneStop Project Type: Keyword type code: project Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Project Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: 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: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: Earth Remote Sensing Instruments > Active Remote Sensing > Profilers/Sounders > Radar Sounders > NEXRAD > NEXt Generation RADar Keyword: Earth Remote Sensing Instruments > Active Remote Sensing > Profilers/Sounders > Radar Sounders > Doppler Radar Type: Keyword type code: instrument Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Instrument Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: 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: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Keyword: DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Type: Keyword type code: dataCentre Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Data Center Keywords Date: Date: Date: 2018 Date type: Date type code: revision Edition: Version 8.6 Cited responsible party: Responsible party: Organisation name: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Protocol: HTTPS Application profile: 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: Online function code: information Role: Role code: publisher Descriptive keywords: Keywords: Keyword: SAR Type: Keyword type code: other Resource constraints: Legal constraints: Use constraints: Restriction code: otherRestrictions Other constraints: Cite as: NOAA National Weather Service (NWS) Radar Operations Center (1992): NOAA Next Generation Radar (NEXRAD) Level 3 Products. [indicate subset used]. NOAA National Centers for Environmental Information. NCEI DSI 7000. [access date]. Resource constraints: title: Distribution Liability Legal constraints: uuid: dadd4ac3-2b9f-4db5-8603-71285b94c3d7 Access constraints: Restriction code: otherRestrictions Other constraints: 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. Resource constraints: title: Use Liability Legal constraints: uuid: e8163b1b-fb5a-4f4e-8d5c-ed06da10e21b Use constraints: Restriction code: otherRestrictions Other constraints: 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. Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: Data Stewardship Maturity Report for NOAA Next Generation Radar (NEXRAD) Level III Products Date: Date: Date: 2021 Date type: Date type code: publication Cited responsible party: Responsible party: Individual name: NOAA Institutional Repository Role: Role code: publisher Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://doi.org/10.25923/cqck-0915 Protocol: HTTPS Application profile: Web Browser Name: DSMR Publication at the NOAA Institutional Repository Description: Report documenting the Scientific Data Stewardship Maturity for this dataset. Function: Online function code: information Role: inapplicable Association Type: Association type code: crossReference Initiative Type: Initiative type code: sciencePaper Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: NEXRAD WSR-88D Interface Control Documents Date: missing Cited responsible party: Responsible party: Organisation name: Radar Operations Center, National Weather Service, NOAA, U.S. Department of Commerce Contact info: Contact: Address: Address: City: Norman Administrative area: OK Role: Role code: publisher Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.roc.noaa.gov/WSR88D/BuildInfo/Files.aspx Protocol: HTTPS Application profile: Web Browser Name: NEXRAD WSR-88D Interface Control Documents Description: The Interface Control Documents (ICDs) describe the data format specification for multiple WSR-88D Build Versions. Function: Online function code: information Role: missing Association Type: Association type code: crossReference Initiative Type: Initiative type code: dataDictionary Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: Federal Meteorological Handbook No. 11 - Doppler Radar Meteorological Observations (WSR-88D) Date: missing Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.icams-portal.gov/resources/ofcm/fmh/allfmh2.htm Application profile: Web Browser Name: Federal Meteorological Handbook No. 11 - Doppler Radar Meteorological Observations (WSR-88D) Description: The Handbook defines standardized data management practices. Function: Online function code: information Role: missing Association Type: Association type code: crossReference Initiative Type: Initiative type code: userGuide Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: The WSR-88D and the WSR-88D Operational Support Facility Date: Date: Date: 1993-09 Date type: Date type code: publication Identifier: Identifier: Code: doi:10.1175/1520-0477%281993%29074%3C1669%3ATWATWO%3E2.0.CO%3B2 Cited responsible party: Responsible party: Organisation name: American Meteorological Society Contact info: Contact: Address: Address: City: Boston Administrative area: MA Role: Role code: publisher Cited responsible party: Responsible party: Organisation name: Crum, T.D. Role: Role code: author Cited responsible party: Responsible party: Organisation name: Alberty, R.L. Role: Role code: author Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://doi.org/10.1175/1520-0477%281993%29074%3C1669%3ATWATWO%3E2.0.CO%3B2 Protocol: HTTPS Application profile: Web Browser Name: The WSR-88D and the WSR-88D Operational Support Facility Description: AMS Journal Publication. Function: Online function code: information Role: missing Series: Series: Name: Bulletin of the American Meteorological Society, Volume 74 Issue identification: Issue 9, pp. 1669-1687 Other citation details: pp. 1669-1687 Association Type: Association type code: crossReference Initiative Type: Initiative type code: sciencePaper Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: History of Operational Use of Weather Radar by U.S. Weather Services. Part I: The Pre-NEXRAD Era Date: Date: Date: 1998-06 Date type: Date type code: publication Identifier: Identifier: Code: doi:10.1175/1520-0434%281998%29013%3C0219%3AHOOUOW%3E2.0.CO%3B2 Cited responsible party: Responsible party: Organisation name: American Meteorological Society Contact info: Contact: Address: Address: City: Boston Administrative area: MA Role: Role code: publisher Cited responsible party: Responsible party: Organisation name: Whiton, R.C. Role: Role code: author Cited responsible party: Responsible party: Organisation name: Smith, P.L. Role: Role code: author Cited responsible party: Responsible party: Organisation name: Bigler, S.G. Role: Role code: author Cited responsible party: Responsible party: Organisation name: Wilk, K.E. Role: Role code: author Cited responsible party: Responsible party: Organisation name: Harbuck, A.C. Role: Role code: author Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://doi.org/10.1175/1520-0434%281998%29013%3C0219%3AHOOUOW%3E2.0.CO%3B2 Protocol: HTTPS Application profile: Web Browser Name: History of Operational Use of Weather Radar by U.S. Weather Services. Part I: The Pre-NEXRAD Era Description: AMS Journal Publication. Function: Online function code: information Role: missing Series: Series: Name: Weather and Forecasting, Volume 13 Issue identification: Issue 2, pp. 219-243 Other citation details: pp. 219-243 Association Type: Association type code: crossReference Initiative Type: Initiative type code: sciencePaper Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: History of Operational Use of Weather Radar by U.S. Weather Services. Part II: Development of Operational Doppler Weather Radars Date: Date: Date: 1998-06 Date type: Date type code: publication Identifier: Identifier: Code: doi:10.1175/1520-0434%281998%29013%3C0244%3AHOOUOW%3E2.0.CO%3B2 Cited responsible party: Responsible party: Organisation name: American Meteorological Society (AMS) Contact info: Contact: Phone: Telephone: Voice: (617) 227-2425 Facsimile: (617) 742-8718 Address: Address: Delivery point: 45 Beacon Street City: Boston Administrative area: MA Postal code: 02108-3693 Country: USA Electronic mail address: amsinfo@ametsoc.org Role: Role code: publisher Cited responsible party: Responsible party: Organisation name: Whiton, R.C. Role: Role code: author Cited responsible party: Responsible party: Organisation name: Smith, P.L. Role: Role code: author Cited responsible party: Responsible party: Organisation name: Bigler, S.G. Role: Role code: author Cited responsible party: Responsible party: Organisation name: Wilk, K.E. Role: Role code: author Cited responsible party: Responsible party: Organisation name: Harbuck, A.C. Role: Role code: author Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://doi.org/10.1175/1520-0434%281998%29013%3C0244%3AHOOUOW%3E2.0.CO%3B2 Protocol: HTTPS Application profile: Web Browser Name: History of Operational Use of Weather Radar by U.S. Weather Services. Part II: Development of Operational Doppler Weather Radars Description: AMS Journal Publication. Function: Online function code: information Role: missing Series: Series: Name: Weather and Forecasting, Volume 13 Issue identification: Issue 2, pp. 244-252 Other citation details: pp. 244-252 Association Type: Association type code: crossReference Initiative Type: Initiative type code: sciencePaper Language: eng; USA Topic category: Topic category code: climatologyMeteorologyAtmosphere Extent: Extent: Geographic element: Geographic bounding box: West bound longitude: 124.0 East bound longitude: -64.0 South bound latitude: 11.0 North bound latitude: 68.0 Temporal element: Temporal extent: Extent: Time period: Begin date: 1992-05-07 End date: now
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Content info: Coverage Description: Attribute description: General Meteorological Products: General products include the baseline reflectivity and velocity, and also algorithmic graphic products spectrum width, vertical integrated liquid, and VAD wind profile. Content type: unknown Dimension: Band: Sequence identifier: Base Reflectivity unknown Descriptor: A display of echo intensity measured in dBZ. This product is used to detect precipitation, evaluate storm structure, locate boundaries and determine hail potential. The 4 lowest elevations angles are available. Maximum value: 95 Minimum value: -30 Value unit: gml:UnitDefinition: Identifier: dBZ gml:name: dBZ Dimension: Band: Sequence identifier: Base Velocity unknown Descriptor: A measure of the radial component of the wind either toward the radar (negative values) or away from the radar (positive values). Negative values are represented by cool colors (green) while positive values are represented by warm colors (red). This product is used to estimate wind speed and direction, locate boundaries, locate severe weather signatures and identify suspected areas of turbulence. Maximum value: 100 Minimum value: -100 Value unit: gml:UnitDefinition: Identifier: knots gml:name: knots Dimension: Band: Sequence identifier: Composite Reflectivity unknown Descriptor: A display of maximum reflectivity for the total volume within the range of the radar. This product is used to reveal the highest reflectivities in all echoes, examine storm structure features and determine intensity of storms. Maximum value: 75 Minimum value: -32 Value unit: gml:UnitDefinition: Identifier: dbz gml:name: dbz Dimension: Band: Sequence identifier: Layer Composite Reflectivity unknown Descriptor: A display of maximum reflectivity for three different height ranges within the volume scan. This product is used to reveal the highest reflectivities in all echoes, examine storm structure features and determine intensity of storms. Maximum value: 75 Minimum value: -32 Value unit: gml:UnitDefinition: Identifier: dbz gml:name: dbz Dimension: Band: Sequence identifier: Storm Relative Veolicty unknown Descriptor: When the motion of storms are subtracted from the wind field, the result is a picture of the wind as if the storms were stationary. Color induces are the same as base velocity. Comparing the storm relative motion image with base velocity image helps identify the rotating storm. Maximum value: 100 Minimum value: -100 Value unit: gml:UnitDefinition: Identifier: knots gml:name: knots Dimension: Band: Sequence identifier: Echo Tops unknown Descriptor: An image of the echo top heights color coded in user-defined increments. This product is used for a quick estimation of the most intense convection and higher echo tops, as an aid in identification of storm structure features and for pilot briefing purposes. Maximum value: 70000 Minimum value: 5000 Value unit: gml:UnitDefinition: Identifier: feet gml:name: feet Dimension: Band: Sequence identifier: Vertical Integrated Liquid unknown Descriptor: The water content of a 2.2 X 2.2 nmi column of air which is color coded and plotted on a 124 nmi map. This product is used as an effective hail indicator, to locate most significant storms and to identify areas of heavy rainfall. Maximum value: 200 Minimum value: 0 Value unit: gml:UnitDefinition: Identifier: kg/m**2 gml:name: kg/m**2 Dimension: Band: Sequence identifier: VAD Wind Profile unknown Descriptor: A graphic display of wind barbs plotted on a height staff in 500 ft or 1000 ft increments. The current (far right) and up to 10 previous plots may be displayed simultaneously. This product is an excellent tool for meteorologists in weather forecasting, severe weather and aviation. Value unit: missing
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Content info: Coverage Description: Attribute description: Hydrometeorological Products: Precipitation products are estimated ground accumulated rainfall. Estimates are based off a reflectivity and rainfall rate relationship called Z-R. Content type: unknown Dimension: Band: Sequence identifier: One Hour Precipitation unknown Descriptor: A display of estimated one hour precipitation accumulation on a 1.1 X 1.1 nmi grid. This product is used to assess rainfall intensities for flash flood warnings, urban flood statements and special weather statements. Maximum value: 50 Minimum value: 0 Value unit: gml:UnitDefinition: Identifier: inches gml:name: inches Dimension: Band: Sequence identifier: Three Hour Precipitation unknown Descriptor: A display of estimated three hour precipitation accumulation on a 1.1 X 1.1 nmi grid. This product is used to assess rainfall intensities for flash flood warnings, urban flood statements and special weather statements. Maximum value: 50 Minimum value: 0 Value unit: gml:UnitDefinition: Identifier: inches gml:name: inches Dimension: Band: Sequence identifier: Storm Total Precipitation unknown Descriptor: A map of estimated storm total precipitation accumulation continuously updated since the last one-hour break. This product is used to locate flood potential over urban or rural areas, estimate total basin runoff and provide rainfall data 24 hours a day. Maximum value: 50 Minimum value: 0 Value unit: gml:UnitDefinition: Identifier: inches gml:name: inches Dimension: Band: Sequence identifier: Digital Precipitation Array unknown Descriptor: An array format of estimated one hour precipitation accumulations on the 1/4 LFM (4.7625 km HRAP) grid. This is a 8 bit product with 255 possible precip values. This product is used to assess rainfall intensities for flash flood warnings, urban flood statements and special weather statements. Maximum value: 50 Minimum value: 0 Value unit: gml:UnitDefinition: Identifier: inches gml:name: inches
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Content info: Coverage Description: Attribute description: Storm Overlay Products: Overlay products are alphanumeric data that gives detailed information on certain parameters for an identified storm cell. Content type: unknown Range Element Description: Range Element Description: Name: Storm Structure Definition: A table displaying information on storm attributes which include maximum reflectivity, maximum velocity at lowest elevation angle, storm overhang, mass weighted storm volume, storm area base and top, storm position and storm tilt. Range Element: Alphanumeric values: Product is alphanumeric. Range Element Description: Range Element Description: Name: Hail Index Definition: A product designed to locate storms which have the potential to produce hail. Hail potential is labeled as either probable (hollow green triangle) or positive (filled green triangle). Probable means the storm is probably producing hail and positive means the storm is producing hail. Range Element: Alphanumeric values: Product is alphanumeric. Range Element Description: Range Element Description: Name: Mesocyclone Definition: This product is designed to display information regarding the existence and nature of rotations associated with thunderstorms. Numerical output includes azimuth, range, and height of the mesocyclone. Range Element: Alphanumeric values: Product is alphanumeric. Range Element Description: Range Element Description: Name: Tornadic Vortex Signature Definition: A product which shows an intense gate to gate azimuthal shear associated with tornadic- scale rotation. It is depicted by a red triangle with numerical output of location and height. Range Element: Alphanumeric values: Product is alphanumeric. Range Element Description: Range Element Description: Name: Storm Tracking Information Definition: A product which shows a plot of the past hours movement, current location, and forecast movement for the next hour or less for each identified thunderstorm cell. This product is used to determine reliable storm movement. Range Element: Alphanumeric values: Product is alphanumeric.
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Content info: Coverage Description: Attribute description: Radar Messages: Radar messages are sent by the radar site to users in order to know more about the radar status and special product data. Content type: unknown Range Element Description: Range Element Description: Name: General Status Message Definition: A text message describing the status of the Radar site. A reason may be provided if the Radar is not transmitting. Range Element: Alphanumeric Text: Message contains alphanumeric text. Range Element Description: Range Element Description: Name: Radar Coded Message Definition: A three part message containing a tabular listing of composite reflectivity data, a vertical wind profile derived from the VAD algorithm and the locations of algorithm produced severe weather features such as the Hail Index (HI) and the Tornado Vortex Signature (TVS). Range Element: Alphanumeric Text: Message contains alphanumeric text. Range Element Description: Range Element Description: Name: Radar Outage Notification Definition: Notification message of radar outage. Range Element: Alphanumeric Text: Message contains alphanumeric text. Range Element Description: Range Element Description: Name: Interim Radar Message Definition: Notification message of radar outage. Range Element: Alphanumeric Text: Message contains alphanumeric text. Range Element Description: Range Element Description: Name: Radar Coded Message Definition: The Radar Coded Message product (RCM) is based on grid squares approximately 10 km on a side. It is composed of three parts preceded by a communications header. Range Element: Part A: Reflectivity is produced automatically and is presented to the user as a tabular listing of alphanumerics. Range Element: Part B: Velocity Azimuth Display is also produced automatically and is presented to the user as an alphanumeric message. Range Element: Part C: Remarks, consists of automatically provided information that can be augmented at the option of the user. The automatically produced portion of Part C is presented to the user as an alphanumeric message.
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Content info: Feature catalogue description: Included with dataset: missing Feature catalogue citation: Citation: Title: Entity and Attribute Overview: http://www1.ncdc.noaa.gov/pub/data/documentlibrary/tddoc/td7000.pdf Date: inapplicable Other citation details: Entity and Attribute Detail Citation: none
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Content info: Image description: Attribute description: inapplicable Content type: inapplicable Processing level code: Identifier: Authority: Citation: Title: Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata - Appendix B, NOAA Data Product Levels Date: Date: Date: 2002-10-09 Date type: Date type code: publication Edition: FGDC-STD-012-2002 Cited responsible party: Responsible party: Organisation name: Federal Geographic Data Committee Secretariat c/o U.S. Geological Survey Contact info: Contact: Address: Address: Delivery point: 590 National Center City: Reston Administrative area: VA Postal code: 20192 Role: Role code: publisher Cited responsible party: Responsible party: Organisation name: Standards Working Group, Federal Geographic Data Committee Role: Role code: originator Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/MetadataRemoteSensingExtens.pdf Protocol: HTTPS Application profile: Information Name: Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata, FGDC-STD-012-2002 Description: The purpose of this standard is to provide extensions to the Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata for describing geospatial data obtained from remote sensing. Function: Online function code: information Role: inapplicable Code: Level 3
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Distribution info: Distribution: Distributor: Distributor: Distributor contact: title: NCEI (distributor) Responsible party: uuid: 440b3ac2-64a5-46e2-9846-38305718b644 Organisation name: NOAA National Centers for Environmental Information Contact info: Contact: Address: Address: Electronic mail address: ncei.info@noaa.gov Online Resource: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/contact Name: NCEI Contact Information Description: Information for contacts at NCEI. Function: Online function code: information Role: Role code: distributor Distribution Order Process: Standard order process: 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. Ordering instructions: Contact NCEI for other distribution options and instructions. Distributor format: Format: Name: Native Binary Version: missing File decompression technique: Unix Zip (.Z) or gzip (.gz) compression and tape archive (.tar) may be applied to data files retreived from the NCDC archive. Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc:C00708/html Protocol: HTTPS Application profile: Landing Page Name: NCEI Dataset Landing Page Description: Landing page for the dataset. Function: Online function code: information Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/products/radar/next-generation-weather-radar Protocol: HTTPS Application profile: Information Name: NCEI NEXRAD page Description: Informational resources for NEXRAD Radar Data. Function: Online function code: information Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/access/search/data-search/weather-radar-level-iii Protocol: HTTPS Application profile: Data Search Application Name: NCEI Data Search Description: Search the data archive to submit an order via the interface or download files if available. Function: Online function code: search Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/maps/radar/ Protocol: HTTPS Application profile: Map Search Application Name: NCEI GIS Map Viewer Description: Dynamic GIS mapping application to locate stations and data for selected layers. Function: Online function code: search Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.ncdc.noaa.gov/nexradinv/ Protocol: HTTPS Application profile: Web Browser Name: NCEI NEXRAD Data Inventory Search Description: Search for radar data and estimated VCP mode by station ID, location, and date via a text-based interface. Function: Online function code: search Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://gis.ncdc.noaa.gov/arcgis/rest/services/cdo/nexrad/MapServer Protocol: HTTPS Application profile: REST Name: NCEI ArcGIS REST Services Directory Description: ArcGIS Server REST API for the dataset. Function: Online function code: download Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://gis.ncdc.noaa.gov/arcgis/services/cdo/nexrad/MapServer/WMSServer?request=GetCapabilities&service=WMS Protocol: HTTPS Application profile: WMS Name: NCEI NEXRAD WMS Description: Web Map Service for the dataset. Function: Online function code: download Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://gis.ncdc.noaa.gov/arcgis/services/cdo/nexrad/MapServer/WFSServer?request=GetCapabilities&service=WFS Protocol: HTTPS Application profile: WFS Name: NCEI NEXRAD WFS Description: Web Feature Service for the dataset. Function: Online function code: download Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://gis.ncdc.noaa.gov/kml/nexrad.kmz Protocol: HTTPS Application profile: KML Name: KMZ file for dataset Description: Direct download link for KMZ file. Function: Online function code: download Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.ncei.noaa.gov/products/radar/radar-display-conversion-tools Protocol: HTTPS Application profile: Web Browser Name: NEXRAD Display and Conversion Tools Description: Information on free visualization, analysis, and decoding tools for the radar data format. Function: Online function code: information
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Data quality info: Data quality: Scope: Scope: Hierarchy level: Scope code: dataset Lineage: Lineage: Statement: NEXRAD Level 3 products were created by the NOAA National Weather Service (NWS) and are archived by the NOAA National Centers for Environmental Information (NCEI). Process step: Process Step: Description: Level 2 data are the three meteorological base data quantities: reflectivity, mean radial velocity, and spectrum width. From these Level 2 data, computer processors generate numerous meteorological analysis Level 3 products based on the Level 3 product algorithms. Level 2 data are recorded at all NWS and several select CONUS DOD WSR-88D sites. Level 3 products are recorded at all U.S. sites. The data are sent to the NOAA National Centers for Environmental Information for archiving and dissemination. Date and time: unknown Processor: Responsible party: Organisation name: DOC/NOAA/NWS/ROC Position name: Primary Algorithm Product Lead Contact info: Contact: Address: Address: Delivery point: Radar Operations Center City: Norman Administrative area: Oklahoma Country: USA Role: Role code: processor Source: xlink: #Level_2 Source: Source: Description: Source Contribution: The Level 2 data are used in processing Level 3 data. Source Type: digital Source citation: Citation: Title: NWS WSR-88D Next Generation Radar (NEXRAD) Level 2 Date: Date: Date: 1988 Date type: Date type code: publication Identifier: Identifier: Code: gov.noaa.ncdc:C00345 Cited responsible party: Responsible party: Organisation name: DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce Contact info: Contact: Address: Address: Delivery point: National Oceanic and Atmospheric Administration National Weather Service 1325 East West Highway City: Silver Spring Administrative area: MD Postal code: 20910 Country: USA Role: Role code: originator Cited responsible party: Responsible party: Organisation name: missing Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://doi.org/10.7289/V5W9574V Protocol: HTTPS Application profile: Web Browser Name: NWS Next Generation RADar (NEXRAD) Level 2 Data Description: NEXRAD Level 2 data information page. Function: Online function code: information Role: missing Source extent: Extent: Temporal element: Temporal extent: Extent: Time period: Begin date: 1992-05-07 End date: now
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Data quality info: Data quality: Scope: Scope: Hierarchy level: Scope code: repository Level description: Scope description: Other: NOAA National Centers for Environmental Information Lineage: Lineage: Process step: Process Step: 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. Date and time: 2015-04-22T00:00:00
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Data quality info: Data quality: Scope: Scope: Hierarchy level: Scope code: dataset Level description: Scope description: Other: Data Stewardship Report: Conceptual consistency: Name of measure: Data Stewardship Maturity Assessment Measure identification: Identifier: Code: MM-Stew Measure description: The Data Stewardship Maturity Matrix (DSMM) is a unified framework that defines criteria for each of nine components based on measurable practices, which can be used to apply a progressive, 6-level rating to an individual dataset, representing stewardship maturity stages rated as Not Assessed or Not Available (Level 0), adHoc (Level 1), minimum (Level 2), intermediate (Level 3), advanced (Level 4), and optimal (Level 5). Evaluation method description: Data Stewardship Maturity Assessment was evaluated by the metadata content editor for the NOAA OneStop project using the Scientific Data Stewardship Maturity Assessment Model Template v4.0. Evaluation procedure: Citation: Title: The Scientific Data Stewardship Maturity Assessment Model Template Date: Date: Date: 2016-11-28 Date type: Date type code: publication Edition: NCDC-CICS-SMM_0001_Rev.1 v4.0 11/28/2016 Identifier: Identifier: Code: Anchor: xlink: https://doi.org/10.6084/m9.figshare.1211954 title: DOI link doi:10.10.6084/m9.figshare.1211954 Cited responsible party: Responsible party: Individual name: Peng, Ge Organisation name: CICS-NC/NCEI Role: Role code: author Cited responsible party: Responsible party: Organisation name: inapplicable Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://doi.org/10.6084/m9.figshare.1211954 Protocol: HTTPS Application profile: Web Browser Name: The Scientific Data Stewardship Maturity Assessment Model Template Description: Landing page for quality evaluation procedure. Function: Online function code: information Role: inapplicable Date and time: 2016-11-28T00:00:00 Result: Quantitative result: Value unit: inapplicable Value: intermediate Value: optimal Value: intermediate Value: optimal Value: optimal Value: advanced Value: advanced Value: advanced Value: advanced
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Metadata maintenance: Maintenance information: Maintenance and update frequency: Maintenance frequency code: asNeeded Maintenance note: Bulk metadata change applied on 2023-06-23. See version control repository history for metadata change details.
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Acquisition: Acquisition Information: Instrument: Instrument: Identifier: Identifier: Code: NEXRAD > NEXt Generation RADar Type: missing Operation Information: Operation: Identifier: Identifier: Code: NEXRAD > NEXt Generation Weather RADar Status: missing Parent Operation: inapplicable Platform: Platform: Identifier: Identifier: Code: National Weather Service Description: missing Instrument: missing
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