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Iso-intensity contours of ground magnetic H perturbations for the December 16-18, 1971 geomagnetic storm
  • Published Date:
    1976
Filetype[PDF - 2.77 MB]


Details:
  • Corporate Authors:
    United States, Environmental Data Service. ; World Data Center A for Solar-Terrestrial Physics ;
  • Description:
    " The geomagnetic storm is one of the dramatic signatures of the solar-terrestrial phenomena which are observable on and near the earth. Many storms seem to follow by a day or so the large solar flares or other flurries of solar activity. Among the various kinds of space and ground manifestations of the storm, the storm's growth and decay can be most typically recognized in the H-component magnetic depression at middle and low latitudes which is attributable to the ring current in the magnetosphere. For this reason the initial, main and recovery phases of the magnetic storm have conventionally been identified from the mid-latitude magnetic records. A dramatic magnetic storm which began at about 1904 UT on December 16, 1971 has been very interesting to study in detail because of the large amount of ground-based and satellite data available. The particular sequence of processes characterizing this storm is commonly observed in many other large storms. Some works on the interpretation of specific storm features and their physical processes have already been published for this storm, and other studies are still being made"--Introduction.

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