2.2.2 spase://VMO/NumericalData/WDC/Chambon.la.Foret/Magnetometer/PT1H/WDC_FORMAT Chambon-la-Foret Magnetometer 1-hr Data in WDC Format 2012-05-02T12:34:56.789 Chambon-la-Foret Magnetometer data, 1-hr time resoluion, in WDC format. Magnetic Field Vector Element List: DHXYZF. Note that the list of magnetic field elements that appear in the data set may change over the course of time. For instance, many stations have shifted from DHZ to the XYZ representation of the magnetic field. The time history listed below summarizes changes in element content. A description of the WDC Data Exchange Format for 1-hr magnetic field data is included at the end of this data product description. Please acknowledge: Institute de Physique du Globe de Paris for providing the data observations, and the British Geological Survey, World Data Center for Geomagnetism, Edinburgh for providing access to the data. spase://SMWG/Person/Benoit.Heumez GeneralContact DataProducer spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact TechnicalContact The Geomagnetic Data Master Catalog at the WDC for Geomagnetism, Edinburgh http://www.wdc.bgs.ac.uk/catalog/intro.html Web site for access to magnetometer data hosted by the World Data Center for Geomagnetism, Edinburgh spase://VMO/NumericalData/WDC/Chambon.la.Foret/Magnetometer/PT1H spase://SMWG/Repository/UCLA/VMO Online Open The WDC Geomagnetic Data Master Catalog Repository ftp://ftp.nmh.ac.uk/wdc/obsdata/hourval/single_year The Geomagnetic Data Master Catalog hosted by the British Geological Survey, World Data Center for Geomagnetism, Edinburgh. Text ASCII 311710 bytes P1Y Please thank the British Geological Survey, World Data Center, Edinburgh for use of data from the WDC Geomagnetic Data Master Catalog. Calibrated spase://SMWG/Instrument/Ground/Chambon.la.Foret/Magnetometer MagneticField 1936-01-01T00:00:00.000 2010-12-31T23:00:00.000 Some data gaps may be present. If a gap is present at the beginning or end of the file, the time span start and stop dates could be inaccurate as they are assigned assuming an absence of such gaps. PT1H Earth.Surface ground station magnetometer magnetic field magnetogram Chambon-la-Foret WDC Station Code: CLF 1-hour WDC Format Universal Time Time Time is expressed using a five column format with the following order: year, month, day, hour, and minute, each stored in interger format. The time columns are the first five columns (1,2,3,4,5) in the flat file. PT1H 5 Universal Time expressed using a 5-column year, month, day, hour, minute representation Year 1 Month 2 Day 3 Hour 4 Minute 5 Temporal Magnetic Field Declination D Chambon-la-Foret Magnetic Field Vector Declination Angle PT1H Degree 2*pi > Radian Cylindrical CGM -180.0 180.0 9999 DirectionAngle.AzimuthAngle Magnetic Horzontal Magnetic Field Magnitude H Chambon-la-Foret Horzontal Magnetic Field Magnitude PT1H nT 10^9 >T Cylindrical CGM 0 70000 9999 Projection.IJ Magnetic North-South Horizontal Magnetic Field Component X Chambon-la-Foret North-South Horizontal Magnetic Field Component, positive Northward PT1H nT 10^9 >T Cartesian CGM -70000 70000 9999 Component.I Magnetic East-West Horizontal Magnetic Field Component Y Chambon-la-Foret East-West Horizontal Magnetic Field Component, positive Eastward PT1H nT 10^9 >T Cartesian CGM -70000 70000 9999 Component.J Magnetic Vertical Magnetic Field Component Z Chambon-la-Foret Vertical Magnetic Field Component, positive upward in the Southern hemisphere, positive downward in the Northern hemisphere PT1H nT 10^9 >T Cartesian CGM -70000 70000 9999 Component.K Magnetic Magnetic Field Magnitude F Chambon-la-Foret Magnetic Field Magnitude PT1H nT 10^9 >T 0 70000 9999 Magnitude Magnetic CLF 1936 D H Z CLF 1937 D H Z F CLF 1938 D H Z F CLF 1939 D H Z F CLF 1940 D H Z F CLF 1941 D H Z F CLF 1942 D H Z F CLF 1943 D H Z F CLF 1944 D H Z F CLF 1945 D H Z F CLF 1946 D H Z F CLF 1947 D H Z F CLF 1948 D H Z F CLF 1949 D H Z F CLF 1950 D H Z F CLF 1951 D H Z F CLF 1952 D H Z F CLF 1953 D H Z F CLF 1954 D H Z F CLF 1955 D H Z F CLF 1956 D H Z F CLF 1957 D H Z F CLF 1958 D H Z F CLF 1959 D H Z F CLF 1960 D H Z F CLF 1961 D H Z F CLF 1962 D H Z F CLF 1963 D H Z F CLF 1964 D H Z F CLF 1965 D H Z F CLF 1966 D H Z F CLF 1967 D H Z F CLF 1968 D H Z F CLF 1969 D H Z F CLF 1970 D H Z F CLF 1971 D H Z F CLF 1972 D H Z F CLF 1973 D H Z F CLF 1974 D H Z F CLF 1975 D H Z F CLF 1976 D H Z F CLF 1977 D H Z F CLF 1978 D H Z F CLF 1979 D H Z F CLF 1980 D H Z F CLF 1981 D H Z F CLF 1982 D H Z F CLF 1983 D H Z F CLF 1984 D H Z F CLF 1985 D H Z F CLF 1986 D H Z F CLF 1987 D H Z F CLF 1988 X Y Z F CLF 1989 X Y Z F CLF 1990 X Y Z F CLF 1991 D H Z F CLF 1992 X Y Z F CLF 1993 X Y Z F CLF 1994 X Y Z F CLF 1995 X Y Z F CLF 1996 X Y Z F CLF 1997 X Y Z F CLF 1998 X Y Z F CLF 1999 X Y Z F CLF 2000 X Y Z F CLF 2001 X Y Z F CLF 2002 X Y Z F CLF 2003 X Y Z F CLF 2004 X Y Z F CLF 2005 X Y Z F CLF 2006 X Y Z F CLF 2007 X Y Z F CLF 2008 X Y Z F CLF 2009 X Y Z F CLF 2010 X Y Z F Digital WDC Exchange Format for Observatory Hourly Mean Values -------------------------------------------------------------- Magnetic data organized in 1-year files, with the information coded in ASCII Columns Format Description 1-3 A3 Observatory 3-letter code 4-5 I2 Year Last 2 digits, 1996 = 96. See also columns 15-16. 6-7 I2 Month (01-12) 8 Al Element (D, I, H, X, Y, Z, or F) 9-10 I2 Day of month (01-31) 11-12 A2 Blanks 13 A1 Arbitrary 14 A1 Arbitrary +-- Old Format: -------------------------+ 15-16 I2 Century digits Column 15: International Quiet or Year = 1889, Century digits = 18. Disturbed Days Q=1, D=2 Year = 1996, Century digits = 19. Column 16: Blank for data since 1900, Year = 2014, Century digits = 20. 8 for data before 1900. +----------------------------------------+ 17-20 I4 Tabular base The values are in degrees for D and I, and in hundreds of nanoTeslas for the intensity elements. 21-116 24I4 24 4-digit hourly mean values for the day. The values are in tenth-minutes for D and I, and in nanoTeslas for the intensity elements. The first hourly mean value represents the mean value between 00:00 UT and 01:00 UT, ..., the 24th value represents the mean between 23:00 UT and 24:00 UT. A missing value is identified by 9999. 117-120 I4 Daily Mean If any of the hourly mean values for the day are missing 9999 will appear as the daily mean. 121-122 Record end marker Two chars "cr"= 13 and "nl"= 10. The tabular bases, hourly mean values and daily means are right adjusted and signed if negative. Negative values are identified with a minus sign either adjacent to the first significant digit or in the high-order position of the field. Note: A blank digit will not appear between a (-) sign and the first significant digit. For example, a value may appear as -050 or b-50 but not as -b50 (b=blank). The 25 values in positions 21-120 will have the range -999 to 9998, with 9999 reserved for missing values. The records are sorted according to observatory code, year, month, element, day (positions 1-10). For the intensity elements: hourly value (nanoTeslas) = tab.base*100 + tab.value For the angles D and I: hourly value (Degrees) = tab.base + tab.value/600