Space Sciences

Non-stormtime injection of energetic particles into the slot-region between Earth's inner and outer electron radiation belts as observed by STSAT-1 and NOAA-POES

  1. J. Park1,2,
  2. K. W. Min1,
  3. D. Summers3,4,
  4. J. Hwang5,
  5. H. J. Kim1,
  6. R. B. Horne6,
  7. P. Kirsch6,
  8. K. Yumoto7,
  9. T. Uozumi7,
  10. H. Lühr2,
  11. J. Green8

Article first published online: 21 AUG 2010

DOI: 10.1029/2010GL043989

Issue

Geophysical Research Letters

Geophysical Research Letters

Additional Information

How to Cite

Park, J., et al. (2010), Non-stormtime injection of energetic particles into the slot-region between Earth's inner and outer electron radiation belts as observed by STSAT-1 and NOAA-POES, Geophys. Res. Lett., 37, L16102, doi:10.1029/2010GL043989.

Author Information

  1. 1

    Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, South Korea

  2. 2

    GFZ German Research Center for Geosciences, Potsdam, Germany

  3. 3

    Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John's, Newfoundland, Canada

  4. 4

    School of Space Research, Kyung Hee University, Yongin, South Korea

  5. 5

    Solar and Space Weather Research Group, Korea Astronomy and Space Science Institute, Daejeon, South Korea

  6. 6

    British Antarctic Survey, Cambridge, UK

  7. 7

    Department of Earth and Planetary Sciences, Kyushu University, Fukuoka, Japan

  8. 8

    Space Weather Prediction Center, NOAA, Boulder, Colorado, USA

Publication History

  1. Issue published online: 21 AUG 2010
  2. Article first published online: 21 AUG 2010
  3. Manuscript Accepted: 12 JUL 2010
  4. Manuscript Revised: 6 JUL 2010
  5. Manuscript Received: 18 MAY 2010

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Keywords:

  • radiation belt;
  • slot region;
  • substorm

[1] The slot-region between Earth's inner and outer electron radiation belts was observed on 24 February 2004 by the satellite STSAT-1 to be populated by quasi-trapped electrons of energy 100-400 keV. This injection lasted for several hours and took place during a non-stormtime substorm. This appears to be the first observation of a slot-region electron injection that did not occur during a geomagnetic storm. We also report multi-instrument observations of this event from NOAA-POES and CPMN magnetic observatories, and we consider physical mechanisms that may account for the phenomenon.

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