edu.ucar.gdex::51954d16-4870-457f-ac07-3dbb1c8f65e1 eng; USA utf8 dataset GDEX Curator UCAR/NCAR - GDEX datahelp@ucar.edu pointOfContact 2022-01-27T09:12:22-07:00 ISO 19115 Geographic information - Metadata ISO 19115:2003(E) https://doi.org/10.5065/akxe-2a56 https://doi.org/10.1007/s11214-017-0330-3 https browser Thermosphere-Ionosphere-Electrodynamics General Circulation Model for the Ionospheric Connection Explorer: TIEGCM-ICON Maute, A. (2017). Space science reviews, 212(1-2), 523-551. Ground magnetic perturbation due to external ionospheric current for a solar minimum and maximum year 2020-10-09 publication 2020-10-08 modified https://doi.org/10.5065/akxe-2a56 UCAR/NCAR - GDEX datahelp@ucar.edu publisher Maute, Astrid UCAR/NCAR - High Altitude Observatory maute@ucar.edu author The ground magnetic perturbations are calculated using the 3D ionospheric current system based on a stand-alone electrodynamo module using the neutral winds, ionospheric conductivities and high latitude potential from the Thermosphere-Ionosphere-Electrodynamics GCM (TIEGCM). The TIEGCM is driven at its 97 km lower boundary by 27 day averaged diurnal perturbations from a Thermosphere-Ionosphere-Mesosphere-Electrodynamics GCM (TIMEGCM) simulation using MERRA reanalysis data at the 30km TIMEGCM boundary. For details of the TIEGCM simulation please see Maute (2017). Effects of gravity and plasma pressure gradient driven ionospheric currents are included. At high latitude the Heelis ion convection is employed driven by 3-hourly Kp values. Two TIEGCM simulations are conducted, one for the solar minimum year 2009 and one for the solar maximum year 2002 by using the corresponding F10.7 and Kp values for that year. The lower boundary of TIEGCM, which simulates year 2009 conditions, was not changed for the 2002 simulation, since the 2002 simulation was used to derived dominant ionospheric current patterns and not to study the evolution of the current system. The data set is associated with the manuscript "Modeling Diurnal Variation Magnetic Fields due to Ionospheric Currents" by G. Egbert, P Alken, A. Maute and H. Zhang submitted to Geophysical Journal International. Astrid Maute UCAR/NCAR - High Altitude Observatory maute@ucar.edu pointOfContact application/x-netcdf Dataset DataCite Resource Type 2014-10-16 revision 3.1 DataCite Metadata Working Group originator resourceTypeGeneral EARTH SCIENCE SERVICES > MODELS > SOLAR-ATMOSPHERE/SPACE-WEATHER MODELS EARTH SCIENCE > SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > ELECTRIC FIELDS/ELECTRIC CURRENTS EARTH SCIENCE > SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > MAGNETIC FIELDS/MAGNETIC CURRENTS theme NASA/GCMD Earth Science Keywords Science and Services Keywords 2018-03-15 revision 8.6 Global Change Master Directory (GCMD). 2018. GCMD Keywords, Version 8.6. Greenbelt, MD: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://earthdata.nasa.gov/gcmd-forum Creative Commons Attribution 4.0 International License. None eng; USA -180.0 180.0 -90.0 90.0 application/x-netcdf UCAR/NCAR - CISL - CDP resourceProvider https://gdex.ucar.edu/dataset/id/51954d16-4870-457f-ac07-3dbb1c8f65e1.html https browser Ground magnetic perturbation due to external ionospheric current for a solar minimum and maximum year Metadata Link download