2.2.2 spase://VMO/NumericalData/WDC/Honolulu/Magnetometer/PT1H/WDC_FORMAT Honolulu Magnetometer 1-hr Data in WDC Format 2012-05-02T12:34:56.789 Honolulu 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: U.S. Geological Survey 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/Jill.Caldwell GeneralContact DataProducer spase://SMWG/Person/Jeffrey.J.Love GeneralContact DataProducer spase://SMWG/Person/Carol.A.K.Finn 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/Honolulu/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/Honolulu/Magnetometer MagneticField 1902-01-01T00:00:00.000 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 Honolulu WDC Station Code: HON 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 Honolulu 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 Honolulu Horzontal Magnetic Field Magnitude PT1H nT 10^9 >T Cylindrical CGM 0 70000 9999 Projection.IJ Magnetic North-South Horizontal Magnetic Field Component X Honolulu 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 Honolulu 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 Honolulu 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 Honolulu Magnetic Field Magnitude PT1H nT 10^9 >T 0 70000 9999 Magnitude Magnetic HON 1902 D H HON 1903 D H HON 1904 D H HON 1905 D H Z HON 1906 D H Z HON 1907 D H Z HON 1908 D H Z HON 1909 D H Z HON 1910 D H Z HON 1911 D H Z HON 1912 D H Z HON 1913 D H Z HON 1914 D H Z HON 1915 D H Z HON 1916 D H Z HON 1917 D H Z HON 1918 D H Z HON 1919 D H Z HON 1920 D H Z HON 1921 D H Z HON 1922 D H Z HON 1923 D H Z HON 1924 D H Z HON 1925 D H Z HON 1926 D H Z HON 1927 D H Z HON 1928 D H Z HON 1929 D H Z HON 1930 D H Z HON 1931 D H Z HON 1932 D H Z HON 1933 D H Z HON 1934 D H Z HON 1935 D H Z HON 1936 D H Z HON 1937 D H Z HON 1938 D H Z HON 1939 D H Z HON 1940 D H Z HON 1941 D H Z HON 1942 D H Z HON 1943 D H Z HON 1944 D H Z HON 1945 D H Z HON 1946 D H Z HON 1947 D H Z HON 1948 D H Z HON 1949 D H Z HON 1950 D H Z HON 1951 D H Z HON 1952 D H Z HON 1953 D H Z HON 1954 D H Z HON 1955 D H Z HON 1956 D H Z HON 1957 D H Z HON 1958 D H Z HON 1959 D H Z HON 1960 D H Z HON 1961 D H Z HON 1962 D H Z HON 1963 D H Z HON 1964 D H Z HON 1965 D H Z HON 1966 D H Z HON 1967 D H Z HON 1968 D H Z HON 1969 D H Z HON 1970 D H Z HON 1971 D H Z HON 1972 D H Z HON 1973 D H Z HON 1974 D H Z HON 1975 D H Z HON 1976 D H Z HON 1977 D H Z HON 1978 D H Z HON 1979 D H Z HON 1980 D H Z HON 1981 D H Z HON 1982 D H Z HON 1983 D H Z HON 1984 D H Z F HON 1985 D H Z F HON 1986 D H Z F HON 1987 D H Z F HON 1988 D H Z F HON 1989 D H Z F HON 1990 D H Z F HON 1991 D H Z F HON 1992 D H Z F HON 1993 D H Z F HON 1994 D H Z F HON 1995 D H Z F HON 1996 D H Z F HON 1997 D H Z F HON 1998 D H Z F HON 1999 D H Z F HON 2000 D H Z F HON 2001 D H Z F HON 2002 D H Z F HON 2003 D H Z F HON 2004 X Y Z F HON 2005 X Y Z F HON 2006 X Y Z F HON 2007 X Y Z F HON 2008 X Y Z F HON 2009 X Y Z F HON 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