Ion-neutral coupling in the high-latitude F-layer from incoherent scatter and Fabry-Perot interferometer measurements - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Annales Geophysicae Année : 2000

Ion-neutral coupling in the high-latitude F-layer from incoherent scatter and Fabry-Perot interferometer measurements

Résumé

Since the auroral ionosphere provides an important energy sink for the magnetosphere, ionosphere-thermosphere coupling must be investigated when considering the energy budget of the ionosphere-magnetosphere coupling. We present the first Scandinavian ground-based study of high-latitude F-region ion-neutral frictional heating where ion velocity and temperature are measured by the EISCAT incoherent scatter radar as well as neutral wind and temperature being measured simultaneously by a Fabry-Perot interferometer. A geomagnetically active period (Kp = 7? ? 5?) and quiet period (Kp = 0+ ? 0) were studied. Neglecting the neutral wind can result in errors of frictional heating estimates of 60% or more in the F-layer. About 96% of the local ion temperature enhancement over the neutral temperature is accounted for by ion-neutral frictional heating.

Key words: Ionosphere (auroral ionosphere; ionosphere-atmosphere interactions)

Fichier principal
Vignette du fichier
angeo-18-1145-2000.pdf (573.97 Ko) Télécharger le fichier
Origine : Accord explicite pour ce dépôt
Loading...

Dates et versions

hal-00316785 , version 1 (18-06-2008)

Identifiants

  • HAL Id : hal-00316785 , version 1

Citer

K. Cierpka, M. J. Kosch, M. Rietveld, K. Schlegel, T. Hagfors. Ion-neutral coupling in the high-latitude F-layer from incoherent scatter and Fabry-Perot interferometer measurements. Annales Geophysicae, 2000, 18 (9), pp.1145-1153. ⟨hal-00316785⟩

Collections

INSU EGU
54 Consultations
66 Téléchargements

Partager

Gmail Facebook X LinkedIn More