Skip to Main content Skip to Navigation
Journal articles

Dayside ionospheric response to changes in IMF polarity: optical and plasma-flow observations

Abstract : The response of the dayside ionosphere to changes in polarity of the interplanetary magnetic field was observed by two independent techniques. The signatures were seen in the 630.0 nm red-line emission, measured by a meridian scanning photometer at Ny-Ålesund on Svalbard, and also in the line-of-sight plasma velocities monitored by the Finland CUTLASS SuperDARN radar. A time difference of some 6 to 8 min occurred between the responses of the two techniques, with the flows being first to respond. In the present case study, the longer delay in the optics suggests that ion precipitation controls the auroral emission.
Complete list of metadata

Cited literature [16 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00316700
Contributor : Publication Egu Connect in order to contact the contributor
Submitted on : Saturday, January 1, 2000 - 8:00:00 AM
Last modification on : Wednesday, September 3, 2008 - 11:34:22 AM
Long-term archiving on: : Tuesday, June 28, 2011 - 4:26:36 PM

File

angeo-18-782-2000.pdf
Explicit agreement for this submission

Identifiers

  • HAL Id : hal-00316700, version 1

Collections

INSU | EGU

Citation

S. E. Pryse, A. M. Smith, L. Kersley. Dayside ionospheric response to changes in IMF polarity: optical and plasma-flow observations. Annales Geophysicae, European Geosciences Union, 2000, 18 (7), pp.782-788. ⟨hal-00316700⟩

Share

Metrics

Les métriques sont temporairement indisponibles