Computer Simulation Overview No.7

Rotation of Interplanetary Magnetic Field

3D Magnetic Field Configuration of Magnetosphere

Cross Sectional Patterns

Interaction of the solar wind with the earth's magnetosphere has been studied by using a 3-dimensional global MHD model.

Rotation of IMF in the north-south and dawn-dusk plane with a period of 6 hours, where B=5nT.

Counterclockwise rotation of IMF starting from the quasi-steady magnetospheric configuration for northward IMF.
  1. t=555m, theta=255degrees
  2. t=570m, theta=270degrees
  3. t=585m, theta=285degrees
  4. t=600m, theta=300degrees
  5. t=615m, theta=315degrees
  6. t=630m, theta=330degrees
  7. t=645m, theta=345degrees
  8. t=660m, theta= 0degrees
  9. t=675m, theta= 15degrees
  10. t=690m, theta= 30degrees
  11. t=705m, theta= 45degrees
  12. t=720m, theta= 60degrees
  13. t=735m, theta= 75degrees
  14. t=750m, theta= 90degrees
  15. t=765m, theta=105degrees
Counterclockwise rotation of IMF starting from the quasi-steady magnetospheric configuration for southward IMF.
  1. t=555m, theta= 75degrees
  2. t=570m, theta= 90degrees
  3. t=585m, theta=105degrees
  4. t=600m, theta=120degrees
  5. t=615m, theta=135degrees
  6. t=630m, theta=150degrees
  7. t=645m, theta=165degrees
  8. t=660m, theta=180degrees
  9. t=675m, theta=195degrees
  10. t=690m, theta=210degrees
  11. t=705m, theta=225degrees
  12. t=709m, theta=240degrees
  13. t=712m, theta=240degrees
  14. t=716m, theta=240degrees
  15. t=720m, theta=240degrees
  16. t=735m, theta=255degrees
  17. t=750m, theta=270degrees
  18. t=765m, theta=285degrees
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