nasa cdf (version 3) {
// global attributes:
		:Project = "THEMIS" ;
		:Source_name = "THG_L2>THEMIS Ground Based Observatory" ;
		:Data_type = "MAG" ;
		:Data_version = "1" ;
		:Logical_source = "thg_l2_mag_ksu1" ;
		:Logical_file_id = "thg_l2_mag_ksu1_20251226_v01" ;
		:Time_resolution = "1.0 s" ;
		:Generated_by = "THEMIS SOC" ;
		:Generation_date = "Thu Mar 12 08:19:17 2026" ;
		:ADID_ref = "NSSD0110" ;
		:File_naming_convention = "source_datatype_descriptor" ;
		:Software_version = "xxxx" ;
		:TEXT = "Part of a collaboration between the USGS Geomagnetism Program and the Earthquake Hazards Program and Global Seismographic Network Program to use variometers installed at seismic stations to densify magnetic field observations and to enable cross-corrections. Further details can be found in the journal article U.S. Geological Survey Geomagnetic Variometer Data: Capitalizing on Seismic Infrastructure by A. Ringler et. al. (2025) at https://doi.org/10.1785/0220250185  This dataset contains variometer magnetic field variation data, here transformed from calibrated geographic vector coordinates into local magnetic HEZ vector components.   The USGS provides both \"observatory\" grade magnetic field data and \"variometer\" grade magnetometer data. The former are generally considered to be more accurate, precise, and complete. Calibrated observatory archives can be obtained from the USGS Geomagnetism Program and INTERMAGNET, while uncalibrated USGS variometer data archives are maintained by IRIS/Earthscope.   Relative variations are considered reliable; however, static offsets can be substantial, will vary site-by-site, and may even change following events such as routine maintenance.  USGS variometer data is mirrored at THEMIS in both the 1 second and 0.1 second time cadence (1 Hz and 10 Hz sampling rate). The Time Resolution global attribute indicates the time cadence of this file." ;
		:Spase_datasetresourceid = "" ;
		:Doi = "" ;
		:LINK_TEXT = "USGS source data can be found at the" ;
		:LINK_TEXT = "USGS variometer data can be retrieved using the" ;
		:LINK_TEXT = "The THEMIS data archive for this station can be found at the" ;
		:Mission_group = "THEMIS" ;
		:Instrument_type = "Ground-Based Magnetometers, Riometers, Sounders" ;
		:Acknowledgement = "Original data provided by the USGS Geomagnetism Program." ;
		:Discipline = "Space Physics>Magnetospheric Science" ;
		:Discipline = "Space Physics>Ionospheric Science" ;
		:LINK_TITLE = "USGS GeomagPlots page" ;
		:LINK_TITLE = "Geomagnetism Data Web Service (under /algorithms/filter/)" ;
		:LINK_TITLE = "THEMIS ftp site" ;
		:PI_affiliation = "United States Geological Survey, 1711 Illinois St, Golden, CO 80401-1865, USA" ;
		:PI_name = "The USGS Geomagnetism Program" ;
		:Rules_of_use = "Access to preliminary data is provided as-is. We request that you acknowledge the USGS Geomagnetism Program in all published documents which make use of USGS data." ;
		:Descriptor = "KSU1>Kansas State University--Konza Prairie, Kansas, USA" ;
		:Logical_source_description = "THEMIS GMAG Level 2 Ground-based Vector Magnetic Field at Kansas State University--Konza Prairie, Kansas, USA" ;
		:HTTP_LINK = "https://geomag.usgs.gov/plots/variometer?stations=KSU1" ;
		:HTTP_LINK = "https://themis.ssl.berkeley.edu/data/themis/thg/l2/variometers/ksu1/" ;
		:HTTP_LINK = "https://geomag.usgs.gov/ws/docs#/default/Filtered_Algorithm_algorithms_filter__get" ;
		:MODS = "Rev-2026-02-12 (dcar): CDF template created." ;
// variable attributes, one line per entry (which variable each belongs to is not shown):
		CATDESC = "Magnetic field vector, HEZ vector components; depends on epoch, compno." ;
		CATDESC = "Units for each of the B field vector components." ;
		CATDESC = "Index for the HEZ component number." ;
		CATDESC = "UTC Time, in seconds since 01-Jan-1970 00:00:00. Depends on thg_mag_ksu1_epoch" ;
		CATDESC = "Sample epoch, as human-readable date." ;
		CATDESC = "EPOCH0 of THEMIS TIME BASE" ;
		CATDESC = "range_epoch" ;
		CATDESC = "Descriptive labels for each of the B field vector components." ;
		DEPEND_0 = "thg_mag_ksu1_epoch" ;
		DEPEND_0 = "thg_mag_ksu1_epoch" ;
		DEPEND_1 = "thg_mag_ksu1_compno" ;
		DISPLAY_TYPE = "time_series" ;
		FIELDNAM = "B in HEZ Components" ;
		FIELDNAM = "KSU1 Units" ;
		FIELDNAM = "KSU1 Component Number" ;
		FIELDNAM = "KSU1 Time" ;
		FIELDNAM = "KSU1 Epoch" ;
		FIELDNAM = "KSU1 Epoch0" ;
		FIELDNAM = "range_epoch" ;
		FIELDNAM = "KSU1 Label" ;
		FILLVAL = (6 numeric entries, not shown) ;
		FORMAT = "f9.2" ;
		FORMAT = "a2" ;
		FORMAT = "i2" ;
		FORMAT = "E13.6" ;
		FORMAT = "a21" ;
		LABL_PTR_1 = "thg_mag_ksu1_labl" ;
		LABL_PTR_1 = "thg_mag_ksu1_labl" ;
		UNIT_PTR = "thg_mag_ksu1_unit" ;
		VALIDMIN = (6 numeric entries, not shown) ;
		VALIDMAX = (6 numeric entries, not shown) ;
		VAR_TYPE = "data" ;
		VAR_TYPE = "metadata" ;
		VAR_TYPE = "support_data" ;
		VAR_TYPE = "support_data" ;
		VAR_TYPE = "support_data" ;
		VAR_TYPE = "support_data" ;
		VAR_TYPE = "support_data" ;
		VAR_TYPE = "metadata" ;
		SCALETYP = "linear" ;
		SCALETYP = "linear" ;
		DEPEND_TIME = "thg_mag_ksu1_time" ;
		DEPEND_EPOCH0 = "thg_mag_ksu1_epoch0" ;
		COORDINATE_SYSTEM = "HEZ" ;
		STATION_LATITUDE = "39.1009" ;
		STATION_LONGITUDE = "263.3906" ;
		STATION_ELEVATION = "317.0" ;
		STATION_DECLINATION = "0.0" ;
		DICT_KEY = "label" ;
		DICT_KEY = "number" ;
		DICT_KEY = "label" ;
		UNITS = "" ;
		UNITS = "sec" ;
		UNITS = "msec" ;
		UNITS = "msec" ;
		LABLAXIS = "UT" ;
		LABLAXIS = "UT" ;
		LABLAXIS = "timebase" ;
		LABLAXIS = "UT" ;
		VAR_NOTES = "Unleaped seconds" ;
		VAR_NOTES = "EPOCH of 01-Jan-1970 00:00:00" ;
		VIRTUAL = "TRUE" ;
		FUNCT = "comp_themis_epoch" ;
		COMPONENT_0 = "thg_mag_ksu1_epoch0" ;
		COMPONENT_1 = "thg_mag_ksu1_time" ;
}