DyFK simulation of high plasma densities observed by Akebono during the June, 1989 geomagnetic storm

ORAL

Abstract

During the magnetic storm from 6 June to 10 June 1989, the plasma wave and sounder (PWS) experiments onboard Akebono spacecraft observed electron densities of 200-800 per c.c. around 10,000 km altitude, which are at least one order of magnitude higher than the electron densities during the geomagnetic quiet time. Using the UT Arlington Dynamic Fluid-Kinetic (DyFK) model, we simulated the energization and transport of O$^{+}$ and H$^{+}$ ions in the high-latitude region under geomagnetic storm conditions. The simulation results show that under strong soft electron precipitation and perpendicular wave heating, the ion densities and fluxes over the polar cap region are highly enhanced, which are in general consistent with the Akebono PWS observations.

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Authors

  • Wen Zeng

    UT Arlington, The Department of Physics, the University of Texas at Arlington

  • N. Kitamura

    Geophysical Institute, Tohoku University, Japan

  • Ramon Lopez

    UT Arlington, University of Texas at Arlington, The Department of Physics, the University of Texas at Arlington, USA

  • Bruce Gnade

    Grand Valley State University, STC, Health Physics Society, The University of Texas at San Antonio, Texas Tech University, Lubbock, Texas, PIEAS, Pakistan, Texas Tech University, Lubbock, TX and PIEAS Pakistan, Rutgers University, Department of Physics, Texas A\&M University, College Station, TX 77843, Waxahachie Global High School, Waxahachie, TX, University of Texas at San Antonio, Tohoku University Institute of Materials Research, University of Alberta Department of Physics, Istanbul University Department of Physics, Geophysical Institute, Tohoku University, Japan, Planetary Plasma and Atmospheric Research Center, Tohoku University, Japan, Solar-Terrestrial Environment Laboratory, Nagoya University, Japan, Austin Community College, Dallas Baptist University, Angelo State University, Lake Highlands High School, Baylor University, Waco, TX, Texas Christian University, Fort Worth, TX, Paul Laurence Dunbar High School, Fort Worth, TX, Success High School, Fort Worth, TX, Dept. of Math., Univ. of New Mexico, Depts. of Materials Science and Engineering and Chemistry, University of Texas at Dallas

  • Bruce Gnade

    Grand Valley State University, STC, Health Physics Society, The University of Texas at San Antonio, Texas Tech University, Lubbock, Texas, PIEAS, Pakistan, Texas Tech University, Lubbock, TX and PIEAS Pakistan, Rutgers University, Department of Physics, Texas A\&M University, College Station, TX 77843, Waxahachie Global High School, Waxahachie, TX, University of Texas at San Antonio, Tohoku University Institute of Materials Research, University of Alberta Department of Physics, Istanbul University Department of Physics, Geophysical Institute, Tohoku University, Japan, Planetary Plasma and Atmospheric Research Center, Tohoku University, Japan, Solar-Terrestrial Environment Laboratory, Nagoya University, Japan, Austin Community College, Dallas Baptist University, Angelo State University, Lake Highlands High School, Baylor University, Waco, TX, Texas Christian University, Fort Worth, TX, Paul Laurence Dunbar High School, Fort Worth, TX, Success High School, Fort Worth, TX, Dept. of Math., Univ. of New Mexico, Depts. of Materials Science and Engineering and Chemistry, University of Texas at Dallas

  • Bruce Gnade

    Grand Valley State University, STC, Health Physics Society, The University of Texas at San Antonio, Texas Tech University, Lubbock, Texas, PIEAS, Pakistan, Texas Tech University, Lubbock, TX and PIEAS Pakistan, Rutgers University, Department of Physics, Texas A\&M University, College Station, TX 77843, Waxahachie Global High School, Waxahachie, TX, University of Texas at San Antonio, Tohoku University Institute of Materials Research, University of Alberta Department of Physics, Istanbul University Department of Physics, Geophysical Institute, Tohoku University, Japan, Planetary Plasma and Atmospheric Research Center, Tohoku University, Japan, Solar-Terrestrial Environment Laboratory, Nagoya University, Japan, Austin Community College, Dallas Baptist University, Angelo State University, Lake Highlands High School, Baylor University, Waco, TX, Texas Christian University, Fort Worth, TX, Paul Laurence Dunbar High School, Fort Worth, TX, Success High School, Fort Worth, TX, Dept. of Math., Univ. of New Mexico, Depts. of Materials Science and Engineering and Chemistry, University of Texas at Dallas

  • Bruce Gnade

    Grand Valley State University, STC, Health Physics Society, The University of Texas at San Antonio, Texas Tech University, Lubbock, Texas, PIEAS, Pakistan, Texas Tech University, Lubbock, TX and PIEAS Pakistan, Rutgers University, Department of Physics, Texas A\&M University, College Station, TX 77843, Waxahachie Global High School, Waxahachie, TX, University of Texas at San Antonio, Tohoku University Institute of Materials Research, University of Alberta Department of Physics, Istanbul University Department of Physics, Geophysical Institute, Tohoku University, Japan, Planetary Plasma and Atmospheric Research Center, Tohoku University, Japan, Solar-Terrestrial Environment Laboratory, Nagoya University, Japan, Austin Community College, Dallas Baptist University, Angelo State University, Lake Highlands High School, Baylor University, Waco, TX, Texas Christian University, Fort Worth, TX, Paul Laurence Dunbar High School, Fort Worth, TX, Success High School, Fort Worth, TX, Dept. of Math., Univ. of New Mexico, Depts. of Materials Science and Engineering and Chemistry, University of Texas at Dallas