2.2.2 spase://VMO/NumericalData/WDC/Tristan.da.Cunha/Magnetometer/PT1H/ASCII_FORMAT Tristan da Cunha Magnetometer 1-hr Data in ASCII Flat Table Format 2012-05-02T12:34:56.789 Tristan da Cunha Magnetometer data, 1-hr time resoluion, in ASCII format. Magnetic Field Vector Element List: XYZF. 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 CADENCE magnetic field data is included at the end of this data product description. Please acknowledge: National Space Institute at the Technical University of Denmark 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/Juergen.Matzka 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/Tristan.da.Cunha/Magnetometer/PT1H/WDC_FORMAT DerivedFrom spase://SMWG/Repository/UCLA/VMO Online Open The UCLA VMO Data Repository http://vmo.igpp.ucla.edu/data1/WDC/MAGNETOGRAM/Tristan.da.Cunha/PT1H/TXT The Virtual Magnetospheric Observatory (VMO) Data Repository hosted by the Institute of Geophysics and Planetary Physics (IGPP) at the University of California, Los Angeles (UCLA). Text GZIP 825696 bytes P1Y Please thank the British Geological Survey, World Data Center, Edinburgh for use of data from the WDC Geomagnetic Data Master Catalog. The WDC to ASCII translation was performed at UCLA and the derived ASCII formatted data are available via the UCLA VMO data repository. Calibrated spase://SMWG/Instrument/Ground/Tristan.da.Cunha/Magnetometer MagneticField 2009-10-01T00:00:00.000 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 Tristan da Cunha WDC Station Code: TDC 1-hour ASCII Flat File ASCII Flat Table 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 Column_1 Month 2 Column_2 Day 3 Column_3 Hour 4 Column_4 Minute 5 Column_5 Temporal Magnetic Field DHZ Tristan da Cunha Magnetic Field in DHZ Coordinates PT1H Cylindrical CGM 3 Tristan da Cunha Magnetic Field Data in DHZ Coordinates. The DHZ data columns are numbers (6,8,11) in the flat file. D DirectionAngle.AzimuthAngle 1 Column_6 Degree 2*pi > Radian -180.0 180.0 -99999.999 H Projection.IJ 2 Column_8 nT 10^9 >T -70000 70000 -99999.999 Z Component.K 3 Column_11 nT 10^9 >T -70000 70000 -99999.999 Vector Magnetic Tristan da Cunha Magnetic Field XYZ Tristan da Cunha Magnetic Field in XYZ coordinates PT1H Cartesian CGM 3 Tristan da Cunha Magnetic Field Data in XYZ Coordinates. The XYZ data columns are numbers (9,10,11) in the flat file. X Component.I 1 Column_9 nT 10^9 >T -70000 70000 -99999.999 Y Component.J 2 Column_10 nT 10^9 >T -70000 70000 -99999.999 Z Component.K 3 Column_11 nT 10^9 >T -70000 70000 -99999.999 Vector Magnetic Magnetic Field Inclination Column_7 Tristan da Cunha Magnetic Field Vector Inclination PT1H Degree 2*pi > Radian -180.0 180.0 -99999.999 DirectionAngle.ElevationAngle Magnetic Magnetic Field Magnitude Column_12 Tristan da Cunha Magnetic Field Vector Magnitude PT1H nT 10^9 >T 0 70000 -99999.999 Magnitude Magnetic TDC 2009 X Y Z F TDC 2010 X Y Z F