gov.noaa.ncdc:C00381 National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Unknown tabular digital data http://www.ncdc.noaa.gov http://www4.ncdc.noaa.gov/ol/documentlibrary/datasets.html#TD9948 http DSI-9948 Documentation NCDC Dataset Documentation for DSI-9948 information Six-Second Upper Air Data is digital data set DSI-9948, archived at the National Climatic Data Center (NCDC). This data set contains radiosonde data. High resolution 6-second data has been received at NCDC since April 1995 and archived as digital data set DSI-9948. Geographic coverage is the United States of America including Alaska and Hawaii, Puerto Rico, the US Virgin Islands, US territories in the Pacific, and nations in the Pacific hosting offices of the US National Weather Service (NWS). Major parameters deal with a typical radiosonde release and are time, pressure, dry bulb temperature, dew point temperature, relative humidity, wind speed, wind direction, ascension rate, longitude, latitude, elevation and azimuth, and altitude. To make a wide range of climatic data available to researchers and the public. NOAA-NWS Unknown Silver Spring MD NOAA-NWS MicroArt Training Manual data set C00381 RADIOSONDES RADIOSONDES National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce National Weather Service Observing Handbook No. 3, Upper Air Observations, NOAA-NWS, Silver Spring MD. MicroArt Training Manual http://www4.ncdc.noaa.gov/ol/documentlibrary/datasets.html#TD9948 19950401 Present Ground Condition In work As Needed 130.0 -60.0 72.0 -15.0 ISO 19115 Topic Category climatologyMeteorologyAtmosphere 004 elevation 006 DIF Discipline Keyword Thesaurus Earth Sciences > Atmosphere > Meteorology Earth Sciences > Atmosphere > Climatology Earth Sciences > Atmosphere > Weather GCMD Sciences Keyword Valids EARTH SCIENCE > ATMOSPHERE > ALTITUDE > GEOPOTENTIAL HEIGHT EARTH SCIENCE > ATMOSPHERE > ALTITUDE > BAROMETRIC ALTITUDE EARTH SCIENCE > ATMOSPHERE > ALTITUDE > PLANETARY BOUNDARY LAYER HEIGHT EARTH SCIENCE > ATMOSPHERE > ALTITUDE > TROPOPAUSE EARTH SCIENCE > ATMOSPHERE > ALTITUDE > STATION HEIGHT EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > PLANETARY BOUNDARY LAYER HEIGHT EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > PRESSURE THICKNESS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SURFACE PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > ATMOSPHERIC PRESSURE MEASUREMENTS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE AIR TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > BOUNDARY LAYER TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > INVERSION HEIGHT EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > TEMPERATURE PROFILES EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > ATMOSPHERIC STABILITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > DEW POINT TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND PROFILES EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > BOUNDARY LAYER WINDS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > HUMIDITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR PROFILES EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > PRECIPITABLE WATER EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > DEW POINT TEMPERATURE GCMD Location Valids UNITED STATES OF AMERICA PUERTO RICO VIRGIN ISLANDS GUAM MARSHALL ISLANDS MICRONESIA PALAU GCMD Location Valids LAND SURFACE BOUNDARY LAYER TROPOSPHERE STRATOSPHERE RADIOSONDES RADIOSONDES 1 None None Not provided Unknown Completeness information not available. Unknown Unknown Each record is divided into an Identification (ID) portion (20 characters) and a Data portion (60 characters). The 20-character ID portion is prefixed to the archive data by the UDAS. The ID portion can be further subdivided as follows:Station Id - XXXXXYear - XXXXMonth - XX Day - XXHour - XX Flight Number - XSequence Number - XXXXThe data portion consists of 60 characters which is converted directly from the packed binary format on the input diskettes. The data portion is basically in a print format with the following sub headings:"FILE HEADER RECORD""FILE INDEX RECORDS""STATION DATA RECORD""LIMITING ANGLES DATA""PRERELEASE ADMINISTRATIVE DATA""PRERELEASE FLIGHT EQUIPMENT DATA""SURFACE OBSERVATION DATA""VIZ RADIOSONDE CALIBRATION DATA""VIZ PRERELEASE DATA""RELEASE DATA""VIZ PRESSURE CONTACT LOG""TERMINATION SUMMARY DATA""VIZ RADIOSONDE CONTACT PRESSURE CALIBRATION DATA""6 SECOND MET DATA""POSITION DATA"The data portion may not contain all of these sub headings depending on the success of the radiosonde flight. It is suggested that the user of these data examine the records from a few radiosonde flights in order to better understand the data portion of this archive.Station Id - This is a five character numeric station number assigned by the National Climatic Data Center. It consists of WBAN #. (The WMO # is available in the first record of each flight).Year - This is the year of record. Range of values is 1995 through the current year archived.Month - This is the month of record. Range of values is 01 12.Day - This is the day of record. Range of values is 01 31.Hour - This is the hour of record. Range of values is 00 23 Greenwich Mean Time. The more common radiosonde release times are 00 and 12 hours.Flight Number - This is the number of the radiosonde flight. Usually there is only one flight for the a particular Station Id, Year, Month, Day, and Hour. However, if problems occur with the first flight, a subsequent flight may be made. Range of values is 1 9.Sequence Number - This is the numerical sequence of the records generated from each radiosonde flight that was archived on diskette. Range of values is 0 9999. This parameter is used to maintain the same sequence, or order of the records, that were archived on diskette should the data be sorted.DATA PORTION"FILE HEADER RECORD" - This group of records consists of various high level descriptive information about the file"FILE INDEX RECORDS" - This group of records pertains to the input packed binary file on diskette. These records are not directly applicable to the ASCII archive file."STATION DATA RECORD" - This group of records contains metadata describing the station number, name, elevation, latitude, longitude, etc."LIMITING ANGLES DATA" - This group of records contains the lowest elevation angle at each whole degree of azimuth that the radiosonde can be tracked (ie. the antenna cannot be lower than this angle)"PRERELEASE ADMINISTRATIVE DATA" - This group of records contains metadata describing the observer, release date and time, ascension number, etc."PRERELEASE FLIGHT EQUIPMENT DATA" - This group of records contains metadata describing the radiosonde, balloon, parachute, etc."SURFACE OBSERVATION DATA" - This group of records contains the surface meteorological conditions at the release time of the radiosonde flight."VIZ RADIOSONDE CALIBRATION DATA" - This group of records contains metadata describing the calibration data of the radiosonde instrument. The calibration is performed by the manufacturer."VIZ PRERELEASE DATA" - This group of records contains metadata describing data settings applicable when the radiosonde instrument is released."RELEASE DATA" - This group of records contains release time information and pressure information at release time."VIZ PRESSURE CONTACT LOG" - This group of records contains pressure contact log information."TERMINATION SUMMARY DATA" - This group of records contains metadata describing the reason for termination of the flight, termination altitude, etc."VIZ RADIOSONDE CONTACT PRESSURE CALIBRATION DATA" - This group of records contains pressure in tenths of hectoPascals (millibars), calibrated for each pressure contact."6 SECOND MET DATA" - This group of records contains the meteorological data every 6 seconds during the radiosonde flight. "POSITION DATA" - This group of records contains the information describing the elevation, azimuth, and slant range (if applicable) every 6 seconds during the radiosonde flight. 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.orders@noaa.gov 8:00 - 6:00 Eastern http://www.ncdc.noaa.gov/oa/about/ncdcordering.html DSI-9948 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. 20060627 20060627 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)