Spatial scale and duration of one microburst region on 13 August 2015

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  • B. R. Anderson
    Department of Physics and Astronomy Dartmouth College Hanover New Hampshire USA
  • S. Shekhar
    Department of Physics and Astronomy Dartmouth College Hanover New Hampshire USA
  • R. M. Millan
    Department of Physics and Astronomy Dartmouth College Hanover New Hampshire USA
  • A. B. Crew
    Department of Aeronautics and Astronautics Stanford University Stanford California USA
  • H. E. Spence
    Space Science Center University of New Hampshire Durham New Hampshire USA
  • D. M. Klumpar
    Department of Physics Montana State University Bozeman Montana USA
  • J. B. Blake
    Aerospace Corporation El Segundo California USA
  • T. P. O'Brien
    Aerospace Corporation El Segundo California USA
  • D. L. Turner
    Aerospace Corporation El Segundo California USA

書誌事項

公開日
2017-06
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#am
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/2016ja023752
公開者
American Geophysical Union (AGU)

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説明

<jats:title>Abstract</jats:title><jats:p>Prior studies of microburst precipitation have largely relied on estimates of the spatial scale and temporal duration of the microburst region in order to determine the radiation belt loss rate of relativistic electrons. These estimates have often relied on the statistical distribution of microburst events. However, few studies have directly observed the spatial and temporal evolution of a single microburst event. In this study, we combine Balloon Array for Radiation belt Relativistic Electron Losses balloon‐borne X‐ray measurements with Focused Investigations of Relativistic Electron Burst: Intensity, Range, and Dynamics II and AeroCube‐6 CubeSat electron measurements to determine the spatial and temporal evolution of a microburst region in the morning MLT sector on 13 August 2015. The microburst region is found to extend across at least 4 h in local time in the morning sector, from 09:00 to 13:00 MLT, and from <jats:italic>L</jats:italic> of 5 out to 10. The microburst event lasts for nearly 9 h. Smaller scale structure is investigated using the dual AeroCube‐6 CubeSats, and is found to be consistent with the spatial size of whistler mode chorus wave observations near the equatorial plane.</jats:p>

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