Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 1.490
IF1.490
IF 5-year value: 1.445
IF 5-year
1.445
CiteScore value: 2.9
CiteScore
2.9
SNIP value: 0.789
SNIP0.789
IPP value: 1.48
IPP1.48
SJR value: 0.74
SJR0.74
Scimago H <br class='widget-line-break'>index value: 88
Scimago H
index
88
h5-index value: 21
h5-index21
Volume 18, issue 9
Ann. Geophys., 18, 1145–1153, 2000
https://doi.org/10.1007/s00585-000-1145-0
© European Geosciences Union 2000

Special issue: IXe EISCAT

Ann. Geophys., 18, 1145–1153, 2000
https://doi.org/10.1007/s00585-000-1145-0
© European Geosciences Union 2000

  30 Sep 2000

30 Sep 2000

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

K. Cierpka, M. J. Kosch, M. Rietveld, K. Schlegel, and T. Hagfors K. Cierpka et al.
  • Max-Planck-Institut Aeronomie, 37191 Katlenburg-Lindau, Germany

Abstract. 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)

Publications Copernicus
Special issue
Download
Citation