gov.noaa.ncdc:C00364 National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Unknown tabular digital data http://www.ncdc.noaa.gov CMDL Hourly Surface Observations is historical data set DSI-3274 archived at the National Climatic Data Center (NCDC). Data were provided by the Climate Monitoring and Diagnostics Laboratory (CMDL), which is currently a part of the Office of Oceanic and Atmospheric Research (OAR) of the US National Oceanic and Atmospheric Administration (NOAA). The four observatories that provided data were maintained and operated by CMDL in locations where pollution and anthropogenic influences are frequently non-existent. The stations and periods of record were: Point Barrow, Alaska, USA Jan 1976-Jul 1994 Mauna Loa Observatory, Hawaii, USA Jan 1977-Feb 1994 Cape Matutula, American Samoa Jan 1976-Dec 1993 Amundsen-Scott (South Pole), Antarctica Jan 1977-Dec 1993. Major parameters in DSI-3274 include hourly values for air temperature, dew point temperature, precipitation amount, station pressure, vector wind direction, vector wind speed, and wind steadiness factor. (Note: The steadiness factor is 100 times the ratio of the vector wind speed to the average wind speed.) This data set supplements DSI-3273, CMDL Hourly Average Surface Carbon Dioxide, which uses the same 4 sites. To make a wide range of climatic data available to researchers and the public. data set C00364 AEROVANES ALTIMETERS ANEMOMETERS BAROMETERS CO2 ANALYZERS HUMIDITY SENSORS HYGROMETERS PRESSURE SENSORS RAIN GAUGES TEMPERATURE SENSORS WIND VANES CMDL > NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce 19760101 19940731 Ground Condition Complete As Needed -180.0 -150.0 75.0 -90.0 ISO 19115 Topic Category climatologyMeteorologyAtmosphere 004 DIF Discipline Keyword Thesaurus Earth Sciences > Atmosphere > Meteorology Earth Sciences > Atmosphere > Climatology Earth Sciences > Atmosphere > Weather GCMD Sciences Keyword Valids EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SURFACE PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > DEW POINT EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT GCMD Location Valids UNITED STATES OF AMERICA AMERICAN SAMOA ANTARCTICA GCMD Location Valids LAND SURFACE CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL ALTIMETERS CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL ANEMOMETERS CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL BAROMETERS CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL HYGROMETERS CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL HUMIDITY SENSORS CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL PRESSURE SENSORS CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL RAIN GAUGES CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL TEMPERATURE SENSORS CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL CO2 ANALYZERS CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL AEROVANES CMDL > Climate Monitoring and Diagnostics Laboratory (NOAA) NOAA Climate Monitoring Diagnostics Laboratory Stations CMDL WIND VANES 1 None None Not provided Unknown Completeness information not available. Not derived from another source. Unknown Positions 1-3: RECORD-TYPE - The type of data stored in this record. Value is "HLY". Each record contains one day of hourly values. Positions 4-11: STATION-ID - Contains the WBAN Station Number. (Assigned by NCDC.) Range of values: 21511 (MLO), 27514 (BRW), 61707 (SMO), 90002 (SPO). Eight digit station numbers are always right justified, zero filled. Positions 12-15: ELEMENT-TYPE - The type of data element stored in this record. This data set contains seven elements: AIRT - Air Temperature, DEWT - Dew Point Temperature, PREC - Precipitation Amount, STPR - Station Pressure, WNDI - Vector Wind Direction, WNSP - Vector Wind Speed, and WNST - Wind Steadiness Factor. (Note: The Steadiness Factor is 100 times the ratio of the vector wind speed to the average wind speed for the hour.) Positions 16-17: ELEMENT-UNITS - The units and decimal position of the data value for this record. The element units used for this data record varies with the element: DC - Degrees Celsius to tenths for AIRT and DEWT, MM - millimeters for PREC, MB - millibars to tenths for STPR, DG - whole degrees for WNDI, MS - meters per second to tenths for WNSP, and SF - steadiness factor. (Note: The Steadiness Factor is 100 times the ratio of the vactor wind speed to the average wind speed for the hour.) Positions 18-21: YEAR - This is the year of the record. Range of Value is 1973 - current year processed. Positions 22-23: MONTH - This is the month of the record. Range of value is 01-12. Position 24: SOURCE-CODE-1 - Contains a code that indicates the instrument type used in taking the data. (blank) - Source code not used at this time. Position 25: SOURCE-CODE-2 - Contains a code that indicates the back-up instrument type used in taking the data. (blank) - Source code not used at this time. Positions 26-27: DAY - Contains the day of the record. Range of value is 01-31. Positions 28-30: NUM-VALUES - This notates the actual number of values reported. Range of values is 001-024. NOTE: All positions after 30 are the data section. The number of data values in the data section is NUM-VALUES. Each data value is a block consisting of 12 characters. Positions 31-42, which comprise the first 12-character data value block, are described below. The same description applies to all blocks. Positions 31-34: TIME-OF-VALUE - Range 0100-2400 contains the hour of the hourly element value. Times are expressed in Greenwich Mean Time (GMT). Position 35: SIGN-OF-METEOROLOGICAL-VALUE - This is the 'SIGN' of the meteorological data value. A blank represents a positive value or a minus sign represents a negative value. The sign is always blank. Positions 36-40: DATA-VALUE - Actual data value. Actual data value. This field is a five digit integer. Units and decimal position are indicated in the ELEMENT-UNITS field described in Tape Field 004. Missing Values are not included in the variable length record structure. Position 41: FLAG-1 - The data Flag (part 1). Flags are not used at this time. Position 42: FLAG-2 - The data Flag (part 2). Flags are not used at this time. None National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Customer Service Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4876 NCDC.Orders@noaa.gov Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002