2.2.2 spase://VMO/NumericalData/WDC/Rude.Skov/Magnetometer/PT1H/WDC_FORMAT Rude Skov Magnetometer 1-hr Data in WDC Format 2012-05-02T12:34:56.789 Rude Skov Magnetometer data, 1-hr time resoluion, in WDC format. Magnetic Field Vector Element List: DHXYZ. 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: Rude Skov Observatory Director 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/WDC/Director.Rude.Skov.Observatory 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/Rude.Skov/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/Rude.Skov/Magnetometer MagneticField 1927-01-01T00:00:00.000 1981-12-31T23:00:00.000 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 Rude Skov WDC Station Code: RSV 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 Rude Skov 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 Rude Skov Horzontal Magnetic Field Magnitude PT1H nT 10^9 >T Cylindrical CGM 0 70000 9999 Projection.IJ Magnetic North-South Horizontal Magnetic Field Component X Rude Skov 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 Rude Skov 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 Rude Skov 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 RSV 1927 X Y Z RSV 1928 X Y Z RSV 1929 X Y Z RSV 1930 X Y Z RSV 1931 X Y Z RSV 1932 X Y Z RSV 1933 X Y Z RSV 1934 X Y Z RSV 1935 X Y Z RSV 1936 X Y Z RSV 1937 X Y Z RSV 1938 X Y Z RSV 1939 X Y Z RSV 1940 X Y Z RSV 1941 X Y Z RSV 1942 X Y Z RSV 1943 X Y Z RSV 1944 X Y Z RSV 1945 X Y Z RSV 1946 X Y Z RSV 1947 X Y Z RSV 1948 X Y Z RSV 1949 X Y Z RSV 1950 X Y Z RSV 1951 X Y Z RSV 1952 X Y Z RSV 1953 X Y Z RSV 1954 X Y Z RSV 1955 X Y Z RSV 1956 X Y Z RSV 1957 X Y Z RSV 1958 X Y Z RSV 1959 X Y Z RSV 1960 X Y Z RSV 1961 X Y Z RSV 1962 X Y Z RSV 1963 X Y Z RSV 1964 X Y Z RSV 1965 X Y Z RSV 1966 X Y Z RSV 1967 X Y Z RSV 1968 X Y Z RSV 1969 X Y Z RSV 1970 X Y Z RSV 1971 X Y Z RSV 1972 X Y Z RSV 1973 X Y Z RSV 1974 X Y Z RSV 1975 X Y Z RSV 1976 X Y Z RSV 1977 X Y Z RSV 1978 X Y Z RSV 1979 X Y Z RSV 1980 X Y Z RSV 1981 D H Z 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