Observation of isotropic electron temperature in the turbulent E region
Using EISCAT radar data, we find that electrons are strongly heated in the magnetic field-line direction during high electric field events. The remote site data show that the electron temperature increases in almost the same way in the field-perpendicular direction; electron heating by E region plas...
| Published in: | Annales Geophysicae |
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| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Copernicus Publications
2001
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| Subjects: | |
| Online Access: | https://doi.org/10.5194/angeo-19-11-2001 https://noa.gwlb.de/receive/cop_mods_00036512 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00036466/angeo-19-11-2001.pdf https://angeo.copernicus.org/articles/19/11/2001/angeo-19-11-2001.pdf |
| Summary: | Using EISCAT radar data, we find that electrons are strongly heated in the magnetic field-line direction during high electric field events. The remote site data show that the electron temperature increases in almost the same way in the field-perpendicular direction; electron heating by E region plasma turbulence is isotropic. We discuss the implications of our observation for the "plasmon"-electron as well as the wave Joule heating models of the anomalous electron heating in the E region. Key words. Ionosphere (auroral ionosphere; plasma temperature and density; plasma waves and instabilities) |
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