gov.noaa.ncdc:C00345 National Weather Service, NOAA, U.S. Department of Commerce 1988 raster digital data http://www.ncdc.noaa.gov/oa/radar/radarresources.html http://www.ncdc.noaa.gov/oa/radar/radarresources.html http web browser NCDC Radar Resources Central location for NCDC NEXRAD radar resources. information The Next Generation RADar (NEXRAD) Level III is digital data set DSI-7000 archived at the National Climatic Data Center (NCDC). The NEXRAD system comprises over 150 Weather Surveillance Radar-1988 Doppler (WSR-88D) sites throughout the United States and selected overseas locations. This system is a joint effort of the United States Departments of Commerce (DOC), Defense (DOD), and Transportation (DOT). The controlling agencies within those departments are, respectively, the National Weather Service (NWS), Air Weather Service (AWS) and Federal Aviation Administration (FAA). The NEXRAD Level II data are the three meteorological base data quantities: reflectivity, mean radial velocity, and spectrum width. Level II data are recorded at all NWS and most AWS and FAA WSR-88D sites. From the Level II quantities, computer processing generates numerous meteorological analysis products known as Level III data. Metadata for Level III data can be found within C00708 (DSI-7000). Level III products are recorded at most of the sites. In general, non-US sites do not have Level III products, although a few US sites also do not. The data are sent to the NCDC for archiving and dissemination. Level II data are collected and recorded in units of files which typically contain five, six, or ten minutes of base data depending on the volume coverage pattern (VCP). A data file consists of a 24 byte volume scan header record followed by numerous 2432 byte base data and message records. Data are available from June 1991 to 1 day from present. To detect atmospheric features, such as precipitation and wind, from actively remotely-sensed data for operational forecasting and data research analysis. Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) 2007 Washington, DC Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) FCM-H11A-2007 http://www.ofcm.gov/fmh11/fmh11parta/pdf/FMH11PTA-05-2007.pdf http://www.ofcm.gov/fmh11/fmh11parta/pdf/FMH11PTA-05-2007.pdf http web browser Federal Meteorology Handbook No. 11, Part A Document includes NEXRAD terminology, site metadata, product descriptions, and acronyms (273 KB). information Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) 2007 Washington, DC Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) FCM-H11A-2007 http://www.ofcm.gov/fmh11/fmh11parta/pdf/FMH11PTA-05-2007.pdf http://www.ofcm.gov/fmh11/fmh11parta/pdf/FMH11PTA-05-2007.pdf http web browser Federal Meteorology Handbook No. 11, Part A Document includes NEXRAD terminology, site metadata, product descriptions, and acronyms (273 KB). information Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) 2005 Washington, DC Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) FCM-H11B-2005 http://www.ofcm.gov/fmh11/fmh11partb/2005pdf/fmh-11B-2005.pdf http://www.ofcm.gov/fmh11/fmh11partb/2005pdf/fmh-11B-2005.pdf http web browser Federal Meteorology Handbook No. 11, Part B Document provides a background in radar meteorology necessary to make effective use of the WSR-88D (8.8 MB). information Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) 2006 Washington, DC Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) FCM-H11C-2006 http://www.ofcm.gov/fmh11/fmh11partc/pdf/FMH-11-PartC-April2006.pdf http://www.ofcm.gov/fmh11/fmh11partc/pdf/FMH-11-PartC-April2006.pdf http web browser Federal Meteorology Handbook No. 11, Part C Document provides a full description of the WSR-88D meteorological and hydrological products and algorithms (14.3 MB). information Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) 2006 Washington, DC Office of the Federal Coordinator for Meteorological Services and Supporting Research (OFCM) FCM-H11D-2006 http://www.ofcm.gov/fmh11/fmh11partd/pdf/FMH11D-2006.pdf http://www.ofcm.gov/fmh11/fmh11partd/pdf/FMH11D-2006.pdf http web browser Federal Meteorology Handbook No. 11, Part D Document provides the WSR-88D user community with an overview of unit operations and functional flow and insights into the meteorological applications of the WSR-88D (24.6 MB). information Crum, T.D. Alberty, R.L. 1993 Bulletin of the American Meteorological Society, Volume 74 Issue 9, pp. 1669-1687 Boston, MA American Meteorological Society http://ams.allenpress.com/archive/1520-0477/74/9/pdf/i1520-0477-74-9-1669.pdf http://ams.allenpress.com/archive/1520-0477/74/9/pdf/i1520-0477-74-9-1669.pdf http web browser The WSR-88D and the WSR-88D Operational Support Facility AMS publication (2.2 MB). information Whiton, R.C. Smith, P.L. Bigler, S.G. Wilk, K.E. Harbuck, A.C. 1998 Weather and Forecasting, Volume 13 Issue 2, pp. 219-243 Boston, MA American Meteorological Society http://ams.allenpress.com/archive/1520-0434/13/2/pdf/i1520-0434-13-2-219.pdf http://ams.allenpress.com/archive/1520-0434/13/2/pdf/i1520-0434-13-2-219.pdf http web browser History of Operational Use of Weather Radar by U.S. Weather Services. Part I: The Pre-NEXRAD Era AMS publication (217 KB). information Whiton, R.C. Smith, P.L. Bigler, S.G. Wilk, K.E. Harbuck, A.C. 1998 Weather and Forecasting, Volume 13 Issue 2, pp. 244-252 Boston, MA American Meteorological Society http://www.ncdc.noaa.gov/oa/documentlibrary/pricelists/nexrad.pdf http://www.ncdc.noaa.gov/oa/documentlibrary/pricelists/nexrad.pdf http web browser History of Operational Use of Weather Radar by U.S. Weather Services. Part II: Development of Operational Doppler Weather Radars AMS publication (75 KB). information data set C00345 NEXRAD > NEXt Generation RADar NWS > National Weather Service NEXRAD > NEXt Generation Weather RADar National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Office of the Federal Coordinator for Meteorological Services and Supporting Research, Federal Meteorological Handbook No. 11 - WSR-88D Doppler Radar Meteorological Observations, FMH-11-Part A System Concepts, Responsiblilities, and Procedures (FCM-H11A-2007), Washington, D.C., May 2007. [Available at http://www.ofcm.gov/fmh11/fmh11parta/pdf/FMH11PTA-05-2007.pdf]. Office of the Federal Coordinator for Meteorological Services and Supporting Research, Federal Meteorological Handbook No. 11 - WSR-88D Doppler Radar Meteorological Observations, FMH-11-Part B Doppler Radar Theory and Meteorology (FCM-H11B-2005), Washington, D.C., December 2005. [Available at http://www.ofcm.gov/fmh11/fmh11partb/2005pdf/fmh-11B-2005.pdf]. Office of the Federal Coordinator for Meteorological Services and Supporting Research, Federal Meteorological Handbook No. 11 - WSR-88D Doppler Radar Meteorological Observations, FMH-11-Part C WSR-88D Products and Algorithms (FCM-H11C-2006), Washington, D.C., April 2006. [Available at http://www.ofcm.gov/fmh11/fmh11partc/pdf/FMH-11-PartC-April2006.pdf]. Office of the Federal Coordinator for Meteorological Services and Supporting Research, Federal Meteorological Handbook No. 11 - WSR-88D Doppler Radar Meteorological Observations, FMH-11-Part D WSR-88D Unit Description and Operational Applications (FCM-H11D-2006), Washington, D.C., February 2006. [Available at http://www.ofcm.gov/fmh11/fmh11partd/pdf/FMH11D-2006.pdf]. Crum, T.D. and R.L. Alberty, The WSR-88D and the WSR-88D Operational Support Facility, Date: September 1993. Bulletin of the American Meteorological Society, Volume 74, Issue 9, 1669-1687 pp. [Available at http://ams.allenpress.com/archive/1520-0477/74/9/pdf/i1520-0477-74-9-1669.pdf]. Whiton, R.C., P.L. Smith, S.G. Bigler, K.E. Wilk, and A.C. Harbuck, History of Operational Use of Weather Radar by U.S. Weather Services. Part I: The Pre-NEXRAD Era, Date: June 1998. Weather and Forecasting, Volume 13, Issue 2, 219-243 pp. [Available at http:/ http://www.ncdc.noaa.gov/oa/radar/radarresources.html http://www4.ncdc.noaa.gov/cgi-win/wwcgi.dll?WWNEXRAD~Images2 http://www.ncdc.noaa.gov/oa/radar/radardata.html 19910605 Present Ground Condition Complete Unknown 125.0 -24.0 67.0 11.0 Level 2 Standards Working Group, Federal Geographic Data Committee 20021009 FGDC-STD-012-2002 590 National Center Reston, VA 20192 Federal Geographic Data Committee Secretariat c/o U.S. Geological Survey http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/MetadataRemoteSensingExtens.pdf http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/MetadataRemoteSensingExtens.pdf http web browser Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata, FGDC-STD-012-2002 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. information ISO 19115 Topic Category climatologyMeteorologyAtmosphere 004 elevation 006 imageryBaseMapsEarthCover 010 GCMD Sciences Keyword Valids EARTH SCIENCE > ATMOSPHERE > ALTITUDE > STATION HEIGHT EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > CYCLONES EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > HURRICANES EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > MONSOONS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > STORMS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > TORNADOS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > TYPHOONS EARTH SCIENCE > SPECTRAL/ENGINEERING > RADAR > DOPPLER VELOCITY EARTH SCIENCE > SPECTRAL/ENGINEERING > RADAR > RADAR CROSS-SECTION EARTH SCIENCE > SPECTRAL/ENGINEERING > RADAR > RADAR IMAGERY EARTH SCIENCE > SPECTRAL/ENGINEERING > RADAR > RADAR REFLECTIVITY EARTH SCIENCE > SPECTRAL/ENGINEERING > RADAR > RETURN POWER EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > DROPLET SIZE EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > HAIL EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > LIQUID WATER EQUIVALENT EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION RATE EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > RAIN EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > SNOW EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > BOUNDARY LAYER WINDS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > CONVERGENCE/DIVERGENCE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > FLIGHT LEVEL WINDS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > TURBULENCE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > VERTICAL WIND MOTION EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND PROFILES EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND SHEAR EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND TENDENCY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > PRECIPITABLE WATER EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PRECIPITABLE WATER EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD HEIGHT EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD LIQUID WATER/ICE EARTH SCIENCE > ATMOSPHERE > CLOUDS > DROPLET CONCENTRATION/SIZE EARTH SCIENCE > HYDROSPHERE > SURFACE WATER > FLOODS GCMD Earth Science Services Keywords DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > DESKTOP GEOGRAPHIC INFORMATION SYSTEMS DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS ENVIRONMENTAL ADVISORIES > HYDROLOGICAL ADVISORIES > FLOODS ENVIRONMENTAL ADVISORIES > WEATHER/CLIMATE ADVISORIES > SEVERE WEATHER REFERENCE AND INFORMATION SERVICES > SUBSCRIPTION SERVICES GCMD Location Keywords CONTINENT > NORTH AMERICA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA CONTINENT > ASIA > EASTERN ASIA CONTINENT > ASIA > EASTERN ASIA > SOUTH KOREA GEOGRAPHIC REGION > MID-LATITUDE GEOGRAPHIC REGION > NORTHERN HEMISPHERE OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > AZORES OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > PUERTO RICO OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > GUAM OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > KIRIBATI OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > BERING SEA OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > GULF OF ALASKA OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > OKINAWA OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > EAST CHINA SEA OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > YELLOW SEA GCMD Location Keywords VERTICAL LOCATION > BOUNDARY LAYER VERTICAL LOCATION > LAND SURFACE VERTICAL LOCATION > TROPOSPHERE NEXRAD > NEXt Generation Weather RADar National Weather Service NWS NEXt Generation RADar NEXRAD 5 None None National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Customer Services Branch Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4010 828-271-4876 ncdc.info@noaa.gov 8:00 - 6:00 Eastern http://www.ncdc.noaa.gov/oa/about/ncdccontacts.html#RADAR http://www.ncdc.noaa.gov/img/metadata/portal/nexrad.png NEXRAD GIS image PNG Refer to the Federal Meteorology Handbook No. 11, Parts A to D. TBD Completeness information is dependent on the NEXRAD observing station. Most stations began observing in the mid-1990s, and most period of records are continuous. Radar signals are processed on site. Not complete Refer to NCDC Radar Resources. http://www.ncdc.noaa.gov/oa/radar/radarresources.html National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Customer Services Branch Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4010 828-271-4876 ncdc.orders@noaa.gov 8:00 - 6:00 Eastern http://www.ncdc.noaa.gov/oa/about/ncdcordering.html 001 Every effort has been made to ensure that these data are accurate and reliable within the limits of current NOAA quality control procedures. NOAA can only certify that the data provided to its customers is an authentic copy of the records which were accepted for inclusion in NOAA archives. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. NEXRAD data file naming conventions (3): 7000XXXX_WMOABB_NNNXXX_YYYYMMDDHHMM XXXXWMOABB_NNNXXX_YYYYMMDDHHMM 7000XXXXYYYYMMDD.tar.Z Where, 7000 = NCDC 4-digit NEXRAD Level III dataset ID (constant) XXXX = NEXRAD station ID (e.g., KATX) WMOABB = WMO abbreviated heading (e.g., SDUS26) NNN = NEXRAD Product Code (e.g., N2R) XXX = NEXRAD station ID (e.g., ATX) YYYY = 4-digit year of the observation time (UTC) MM = 2-digit month of the observation time (UTC) DD = 2-digit day of the observation time (UTC) HH = 2-digit hour of the observation time (UTC) MM = 2-digit second of the observation time (UTC) tar = Tape archive file format Z = File extension for Unix Zip compressed file KMZ http://gis.ncdc.noaa.gov/aimstools/kml/nexrad2.kmz http://gis.ncdc.noaa.gov/aimstools/kml/nexrad2.kmz http 3-D viewer NCDC Level II compressed KML files The NEXRAD sites may be viewed in 3D Earth browsers (such as Google Earth) using this KML file ArcIMS http://gis.ncdc.noaa.gov/website/ims-nvds/nexrad/ http://gis.ncdc.noaa.gov/website/ims-nvds/nexrad/ http web browser NCDC Climate Data Online - NEXRAD Inventories Map / Data Access Sevice Open Geospatial Consortium Web Map Service (WMS) http://gis.ncdc.noaa.gov/wmsconnector/com.esri.wms.Esrimap?version=1.0.0&service=WMS&request=getcapabilities&ServiceName=WMS_nexrad2 http://gis.ncdc.noaa.gov/wmsconnector/com.esri.wms.Esrimap?version=1.0.0&service=WMS&request=getcapabilities&ServiceName=WMS_nexrad2 http web browser com.esri.wms.Esrimap NEXRAD LEVEL II ESRIMAP file Open Geospatial Consortium Web Feature Service (WFS) http://gis.ncdc.noaa.gov/wfsconnector/com.esri.wfs.Esrimap/WFS_nexrad2?request=getcapabilities&service=WFS&version=1.0.0 http://gis.ncdc.noaa.gov/wfsconnector/com.esri.wfs.Esrimap/WFS_nexrad2?request=getcapabilities&service=WFS&version=1.0.0 http web browser ESRI Basic Web Feature Service (Level II) This is an OGC compliant MapService. The engine used to serve this MapService is ArcIMS Native Binary See the NCDC Data Set Documentation for DSI-6500, NEXRAD Level II (http://www1.ncdc.noaa.gov/pub/data/documentlibrary/tddoc/td6500.pdf), for details on the data file content. See the NCDC Radar Resources Page (http://www.ncdc.noaa.gov/oa/radar/radardata.html#VISUALIZE) for various visualization and analysis software. http://www.ncdc.noaa.gov/nexradinv/ http://www.ncdc.noaa.gov/nexradinv/ http web browser NCDC NEXRAD Data Inventory The NCDC NEXRAD Data Inventory web site allows users to view the data completeness and download NEXRAD data and station metadata. download Locate NEXRAD data by state and site. Native Binary See the NCDC Data Set Documentation for DSI-6500, NEXRAD Level II (http://www1.ncdc.noaa.gov/pub/data/documentlibrary/tddoc/td6500.pdf), for details on the data file content. Unix Zip (.Z) and Tar (.tar) compression may be applied to data in the HDSS archive. See the NCDC Radar Resources Page (http://www.ncdc.noaa.gov/oa/radar/radardata.html#VISUALIZE) for various visualization and analysis software. http://has.ncdc.noaa.gov http://has.ncdc.noaa.gov http web browser NCDC HDSS Access System The NCDC HDSS Access System (HAS) web page provides access to the NEXRAD data archive. download http://www.ncdc.noaa.gov/oa/radar/nxhastutorial.html On-line data downloads are free. Contact NCDC for the fees and terms for production and delivery of the data on physical media. Pricing is dependent on customer order specifications. 20080521 20080411 National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Customer Services Branch Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4010 828-271-4876 ncdc.metadata@noaa.gov 8:00 - 6:00 Eastern Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002 http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html NGDC Extensions to FGDC Metadata http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/MetadataRemoteSensingExtens.pdf http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/remote-sensing-metadata Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata, FGDC-STD-012-2002 http://www.eis.noaa.gov/fgdc/fgdcleg.html NOAA Supplemental Information in Description (NOAA legacy extension to FGDC) http://www.esri.com/metadata/esriprof80.html ESRI Profile of the Content Standard for Digital Geospatial Metadata