Pulsations in the solar wind and on the ground

Plyasova-Bakounina, T.A.; Golkov, Yu.V.; Troitskaya, V. A.; Hedgecock, P. C.

doi:10.1016/0032-0633(78)90046-6

Cited by 18 publications

(1 citation statement)

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“…The literature on observations of magnetic field pulsations includes a vast number of papers dealing with ground data, a large number reporting satellite observations taken within the magnetosphere, and a few relating interplanetary medium effects to ground observations of pulsations [Greenstadt et al, 1979;Plyasova-Bakounina et al, 1978]. Some of the studies compared pulsations in the magnetosphere with pulsations on the ground [McPherron et al, 1972;Lanzerotti and Southwood, 1979], but there seems to have been little attempt to relate magnetosheath pulsations and magnetopause oscillations to ground pulsations so far as specific events are concerned, though some statistical studies on Pc 3-4 (T --10-150 s) activity have been carried out [Arthur et.…”

Section: Introductionmentioning

confidence: 99%

Substorm‐associated pulsations and magnetopause‐magnetosheath fluctuations

Heacock¹,

Chao²

1981

J. Geophys. Res.

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Substorm‐associated fluctuations in magnetopause position were observed on October 8, 1974, as the Hawkeye satellite approached the magnetopause outbound. On October 4, while Hawkeye was well within the magnetosheath, substorm activity was accompanied by a significant increase in the magnetic field fluctuation level at the satellite and on the ground in the polar cap and nightside sectors. Several mechanisms for producing the pulsations observed in the magnetosheath are considered. Some fluctuations of magnetopause position are produced internally by substorms, while others are produced externally by interaction of the interplanetary medium with the magnetosphere. Reconnection on the dayside together with invasion of the inertia current into the magnetosheath may account for the wave activity observed in the magnetosheath during the October 4 substorm.

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