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Transport of plasma sheet material to the inner magnetosphere

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • M. H. Denton
  • M. F. Thomsen
  • J. E. Borovsky
  • B. Lavraud
  • M. G. Henderson
  • R. M. Skoug
  • H. O. Funsten
  • J.M. Jahn
  • C. J. Pollock
  • J. M. Weygand
<mark>Journal publication date</mark>2007
<mark>Journal</mark>Geophysical Research Letters
Issue numberL04105
Number of pages5
Pages (from-to)1-5
Publication StatusPublished
<mark>Original language</mark>English


The reaction of the plasma sheet in response to an increase in magnetospheric convection is examined using a combination of energetic neutral atom (ENA) imaging and in situ observations. Data from the IMAGE/MENA instrument are examined in conjunction with observations from the magnetospheric plasma analyzer (MPA) instrument onboard the Los Alamos 1994-084 satellite located in geosynchronous orbit. Examination of the MENA data during an enhanced convection event reveal that between 12:00 and 14:30 UT on 26 June 2001, ENA emissions from the plasma sheet material are observed to strengthen and move Earthwards. A simple calculation of the motion of the peak in ENA emissions following an increase in the convection gives an averaged speed of this sunward surge of around 8 km s−1 between 12:00 and 14:30 UT.