2.7.0 spase://GBO/NumericalData/SECS/Magnetometer/SECS/PT10S GBO NumericalData Spherical Elementary Currents Systems (SECS) technique North American Spherical Elementary Current (SEC) Amplitudes derived at 10 sec Resolution in Geographic Coordinates North American SEC Amplitude data https://doi.org/10.21978/p8pp8x 2025-11-24T11:14:45Z 2021-05-31T12:34:56.789 Only known prior ReleaseDate of the metadata 2022-07-25T12:34:56.789 Deleted one InformationURL, updated two InformationURL URLs by JMW 2022-06-02, metadata updated to SPASE 2.4.1, reviewed by LFB 20220724 2024-06-13T00:00:00.000 Updated to SPASE Version 2.6.0. Heavily revised the metadata in almost everyway. JMW 2025-08-05T13:12:18Z Added ObservedRegion(s). Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to value in Version tag. ZCB 2025-11-24T11:14:45Z Fixed HTML character codes. Added ResourceType and NamingAuthority. ZCB The Spherical Elementary Current (SEC) Amplitudes data set contains spherical elementary current amplitude data (J) derived using the SECS technique [Amm and Viljanen, Earth Planets Space, v. 51 pp. 431-440, 1999]. The location of these currents is in geographic coordinates at 10s resolution. The distribution of these currents is not the same as the equivalent ionospheric currents. The UT and date are obtained from the file name. For more information see Weygand et al. J. Geophys. Res. 116, A03305, doi:10.1029/2010JA016177, 2011. Dr. O. Amm; Dr. J.M. Weygand; Prof. V. Angelopoulos, Athabasca University THEMIS UCLA Magnetometer Network (AUTUMN), Natural Resources Canada (NRCan), Canadian Array for Realtime Investigations of Magnetic Activity (CARISMA), Technical University of Denmark (DTU), Falcon, Geophysical Institute Magnetometer Array (GIMA), MagStar, Magnetometer Array for Cusp and Cleft Studies (MACCS), Mid‐continent MAgnetoseismic Chain (McMAC), Solar Terrestrial Energy Program (STEP), THEMIS, United States Geological Survey (USGS) Weygand, James M. 2009-01-01T00:00:00 University of California, Los Angeles NASA NASA Themis/Midex NAS5-02099 NASA The Dynamics of Earth’s Magnetosphere in the Presence of Flow Shear 80NSSC18K0570 NASA Investigation of the Role of Force Balance in Magnetosphere-Ionosphere Coupling 80NSSC18K1220 NASA Data Services Upgrade: Spherical Elementary Currents Systems Archive for Magnetosphere-Ionosphere Coupling over North America NNX14AJ77G NASA Data Services Upgrade: Expansion of the Spherical Elementary Currents Systems Dataset for Magnetosphere-Ionosphere Coupling NNX16AD63G NASA A Proposal for HPDE Community Data and Simulation Metadata and Standards Services 80GSFC17C0018 NASA Quantifying the response of ionospheric currents to substorm-time and non-substorm fast flows 80NSSC18K1227 NASA Enhancing Geomagnetically Induced Current Understanding and Prediction over Continental United States 80NSSC20K1364 NSF-NERC Collaborative Research - Conjugate Experiment to Investigate the Sources of High-Latitude Magnetic Perturbations in the Coupled Solar Wind-Magnetosphere-Ionosphere-Ground System 2027190 NASA Assessing Interplanetary Shock-Induced dB/dt Variations Controlled by Impact Angles 80NSSC22K0756 NASA Extreme High-Latitude Geomagnetic Variations and their Drivers 80NSSC24K0259 spase://SMWG/Person/James.M.Weygand ProjectScientist spase://SMWG/Person/Olaf.Amm Scientist spase://SMWG/Person/James.M.Weygand MetadataContact Journal of Earth, Planets, and Space article on the SECS technique https://doi.org/10.1029/2009JA014832 Research Article on the SECS technique. Journal of Geophysical Research article on the SECS technique as Applied to North America https://doi.org/10.1029/2010JA016177 Research Article on the SECS technique applied to North America and Greenland. SECS technique as Applied to North America https://sites.epss.ucla.edu/jweygand/eics_na_greenland-html-preview-equivalent-ionospheric-currents-over-north-america-and-greenland/ Homepage with contact, "Rules of the Road," and acknowledgement information on the SECS technique applied to North America and Greenland. spase://VMO/NumericalData/SECS/Magnetometer/SECS/PT10S spase://SMWG/Repository/SECS Online Open Virtual Magnetospheric Observatory http://vmo.igpp.ucla.edu/data1/SECS/ Equivalent ionsheric current data produced over North America and Greenland Text Dr. O. Amm; Dr. J.M. Weygand; Prof. V. Angelopoulos, CANMOS, CARISMA, DTU, GIMA, MACCS, STEP, THEMIS Calibrated THEMIS Numerical Data spase://SMWG/Instrument/SECS/Magnetometer MagneticField 2007-01-01T00:00:00 2011-01-31T23:59:59 Time format in data files is: day, month, year hour, min, seconds. Ex: '01-Jan-1981 00:00:00.000.' Data are not complete from 2007 to 2011. Availables months include: 2007/06, 2007/11-2008/03, 2008/10-2009/03, 2009/10-2010/01, and 2011/01 PT10S Earth.Surface Earth.NearSurface.Ionosphere 10 sec ground magnetometer data spherical elementary current amplitudes spherical elementary current systms Geographic Location of Spherical Elementary Current Amplitude geo_loc These data are the geographic location in units of degrees of the derived spherical elementary current amplitude at 10 s resolution. The Altitude of the current vector is 100 km above the surface of the Earth. The date and time are obtained from the file name. degrees Spherical GEO 2 Geographic Laitutde and Longitude of the derived spherical elementary current amplitude value. Geographic Latitude DirectionAngle.ElevationAngle 1 degrees 0 90 Geographic Longitude DirectionAngle.AzimuthAngle 2 degrees 0 360 Vector Positional Spherical Elementary Current Amplitude(J) J These data are the spherical elementary current amplitude (only the amplitude of J) in units of A at 10 s resolution. The Altitude of the current vector is 100 km above the surface of the Earth. The date and time are obtained from the file name. These are not the FAC currents. A -1e8 1e8 Scalar Other