Yordanova, E;
Sundkvist, D;
Buchert, SC;
Andre, M;
Ogawa, Y;
Morooka, M;
Margithu, O;
... Reme, H; + view all
(2007)
Energy input from the exterior cusp into the ionosphere: Correlated ground-based and satellite observations.
Geophysical Research Letters
, 34
(4)
, Article L04102. 10.1029/2006GL028617.
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Abstract
The energy transport from the exterior cusp into the ionosphere is investigated using coordinated ground-based (EISCAT and MIRACLE) and satellite ( Cluster) observations. EISCAT and MIRACLE data are used to estimate the plasma heating in the F-region and the Joule heating in the E-region. Cluster measurements are used to derive the electromagnetic and particle energy fluxes at the high altitudes. These fluxes are then compared with the energy deposition into the ionospheric cusp during a 30 minutes long time interval in which Cluster and EISCAT are nearly conjugated. It is shown that the particles seen at about 9 Re in the exterior cusp carry an earthward energy flux that corresponds to the observed heating of the F-region. The estimated earthward Poynting flux is more than enough to account for the Joule heating in the E-region.
| Type: | Article |
|---|---|
| Title: | Energy input from the exterior cusp into the ionosphere: Correlated ground-based and satellite observations |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1029/2006GL028617 |
| Publisher version: | http://dx.doi.org/10.1029/2006GL028617 |
| Language: | English |
| Additional information: | Copyright 2007 by the American Geophysical Union |
| Keywords: | Cluster, Region, Precipitation, Thermosphere, Dynamics, Model |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/162617 |
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