A note on the generation of the main-phase ring current of a geomagnetic storm
Journal Article
·
· Journal of Geophysical Research
A model is described which permits an approximate calculation of the effects of repeated hydromagnetic shock waves on particles trapped in the magnetosphere. It is shown that an existing trapped plasma might be accelerated to yield an energetic particle distribution with the characteristics of a ring current. The change in magnetic moment DELTA M of such a ring current is calculated approximately as a function of the number n of hydromagnetic shock events. The approximate change in magnetic field DELTA H at the earth is also calculated as a function of n. Observed time variations of DELTA M and DELTA H are compared with the behavior of the model. The implications of the mechanism relative to other geomagnetic disturbances and to auroras are also discussed.
- Research Organization:
- Rand Corp., Santa Monica, Calif.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-003596
- OSTI ID:
- 4763046
- Journal Information:
- Journal of Geophysical Research, Journal Name: Journal of Geophysical Research Journal Issue: 10 Vol. 67; ISSN 0148-0227
- Publisher:
- American Geophysical Union
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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