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    Studies of a Cusp-Region Hydromagnetic Wave Event With Magnetometers and Incoherent Scatter Radar

Studies of a Cusp-Region Hydromagnetic Wave Event with Magnetometers and Incoherent Scatter Radar

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A large-amplitude (~100 nT) low frequency (~0.002 Hz) hydromagnetic wave event was measured with magnetometers at three sites in conjugate areas in the magnetospheric cusp region and at one site (Sondre Stromfjord) with an incoherent scatter radar (IRS). The magnetic signatures of the event showed good conjugacy between South Pole and Frobisher Bay (near- conjugate stations).