2.3.0 spase://GBO/NumericalData/SuperMAG/Magnetometers/PT1M SuperMAG 1-minute data 2018-06-28T22:02:01Z These data consist of uniformized magnetic variation data created by SuperMAG from data received from over 200 ground observatories worldwide. Data are made into 1-min resolution, are cleaned for errors and artifacts, are converted to a NEZ coordinate system (N and E are local magnetic North and East, Z is vertical down), and have their dominant and slowly varying Earth field components (i.e., baselines) subtracted out. Thus the data are intended for studies of effects of variable ionospheric and magnetospheric current systems. Data are available as line plots, as northern and southern hemisphere maps, and as underlying IDL saveset files. User registration is required prior to data access. Detailed guidelines are provided at http://supermag.jhuapl.edu/acknowledgment.html spase://SMWG/Person/Jesper.W.Gjerloev PrincipalInvestigator SuperMAG page at JHU_APL http://supermag.jhuapl.edu/ spase://VSPO/NumericalData/SuperMAG spase://VSPO/NumericalData/SuperMAG/Magnetometers/PT1M spase://SMWG/Repository/JHU_APL Online Restricted SuperMAG data access at JHU_APL http://supermag.jhuapl.edu/ Password-required pathway to data IDL spase://SMWG/Instrument/SuperMAG/Magnetometers MagneticField 1997-01-01T00:00:00 2001-12-31T00:00:00 Present (11/18/2009) time span corresponds to initial SuperMAG proposal to NSF. Extensions in time are contingent on favorable evaluation of submitted NSF proposal. PT1M Earth.Surface