Detailed analysis of substorm observations using SuperDARN, UVI, ground‐based magnetometers, and all‐sky imagers

DOI Web Site Web Site 被引用文献3件
  • W. A. Bristow
    Geophysical Institute University of Alaska Fairbanks Fairbanks Alaska USA
  • G. J. Sofko
    University of Saskatchewan Saskatoon Saskatchewan Canada
  • H. C. Stenbaek‐Nielsen
    Geophysical Institute University of Alaska Fairbanks Fairbanks Alaska USA
  • S. Wei
    Geophysical Institute University of Alaska Fairbanks Fairbanks Alaska USA
  • D. Lummerzheim
    Geophysical Institute University of Alaska Fairbanks Fairbanks Alaska USA
  • A. Otto
    Geophysical Institute University of Alaska Fairbanks Fairbanks Alaska USA

書誌事項

公開日
2003-03
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1029/2002ja009242
公開者
American Geophysical Union (AGU)

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説明

<jats:p>A case study of a small‐magnitude isolated substorm is presented. The substorm was observed by a variety of instruments including the Super Dual Auroral Radar Network (SuperDARN), the Polar Ultra Violet Imager (UVI), CANOPUS magnetometers, the Alaska chain magnetometers, the Poker Flat meridian‐scanning photometer, and the Poker Flat all‐sky imager. It was determined that the initial brightening was centered over the combined fields of view of the various instruments. Temporal and spatial relationships among plasma flows, auroral luminosity, and magnetometer perturbations are investigated. It is found that the initial substorm signature was observed in the plasma flows, followed by the auroral brightening, and finally followed by the magnetometer perturbation. Enhanced plasma flows were observed in a spatially confined region near the auroral oval for a period of ∼5 minutes prior to the brightening. After the brightness peaked, the plasma flow velocity decreased back to a preenhancement level.</jats:p>

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