First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere
The ionospheric electron gas can be heated artificially by a powerful radio wave. According to our modeling, the maximum effect of this heating occurs in the D-region where the electron temperature can increase by a factor of ten. Ionospheric plasma parameters such as N e , T e and T i are measured...
Published in: | Annales Geophysicae |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2000
|
Subjects: | |
Online Access: | https://doi.org/10.1007/s00585-000-1210-8 https://doaj.org/article/ac683f87666f4cbc97d1f02493b09529 |
id |
ftdoajarticles:oai:doaj.org/article:ac683f87666f4cbc97d1f02493b09529 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:ac683f87666f4cbc97d1f02493b09529 2023-05-15T16:04:18+02:00 First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere A. Kero T. Bösinger P. Pollari E. Turunen M. Rietveld 2000-09-01T00:00:00Z https://doi.org/10.1007/s00585-000-1210-8 https://doaj.org/article/ac683f87666f4cbc97d1f02493b09529 EN eng Copernicus Publications https://www.ann-geophys.net/18/1210/2000/angeo-18-1210-2000.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.1007/s00585-000-1210-8 0992-7689 1432-0576 https://doaj.org/article/ac683f87666f4cbc97d1f02493b09529 Annales Geophysicae, Vol 18, Pp 1210-1215 (2000) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2000 ftdoajarticles https://doi.org/10.1007/s00585-000-1210-8 2022-12-31T01:57:05Z The ionospheric electron gas can be heated artificially by a powerful radio wave. According to our modeling, the maximum effect of this heating occurs in the D-region where the electron temperature can increase by a factor of ten. Ionospheric plasma parameters such as N e , T e and T i are measured by EISCAT incoherent scatter radar on a routine basis. However, in the D-region the incoherent scatter echo is very weak because of the low electron density. Moreover, the incoherent scatter spectrum from the D-region is of Lorentzian shape which gives less information than the spectrum from the E- and F-regions. These make EISCAT measurements in the D-region difficult. A combined EISCAT VHF-radar and heating experiment was carried out in November 1998 with the aim to measure the electron temperature increase due to heating. In the experiment the heater was switched on/off at 5 minute intervals and the integration time of the radar was chosen synchronously with the heating cycle. A systematic difference in the measured autocorrelation functions was found between heated and unheated periods. Key words: Ionosphere (active experiments; plasma temperature and density; wave propagation) Article in Journal/Newspaper EISCAT Directory of Open Access Journals: DOAJ Articles Annales Geophysicae 18 9 1210 1215 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 A. Kero T. Bösinger P. Pollari E. Turunen M. Rietveld First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
The ionospheric electron gas can be heated artificially by a powerful radio wave. According to our modeling, the maximum effect of this heating occurs in the D-region where the electron temperature can increase by a factor of ten. Ionospheric plasma parameters such as N e , T e and T i are measured by EISCAT incoherent scatter radar on a routine basis. However, in the D-region the incoherent scatter echo is very weak because of the low electron density. Moreover, the incoherent scatter spectrum from the D-region is of Lorentzian shape which gives less information than the spectrum from the E- and F-regions. These make EISCAT measurements in the D-region difficult. A combined EISCAT VHF-radar and heating experiment was carried out in November 1998 with the aim to measure the electron temperature increase due to heating. In the experiment the heater was switched on/off at 5 minute intervals and the integration time of the radar was chosen synchronously with the heating cycle. A systematic difference in the measured autocorrelation functions was found between heated and unheated periods. Key words: Ionosphere (active experiments; plasma temperature and density; wave propagation) |
format |
Article in Journal/Newspaper |
author |
A. Kero T. Bösinger P. Pollari E. Turunen M. Rietveld |
author_facet |
A. Kero T. Bösinger P. Pollari E. Turunen M. Rietveld |
author_sort |
A. Kero |
title |
First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere |
title_short |
First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere |
title_full |
First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere |
title_fullStr |
First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere |
title_full_unstemmed |
First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere |
title_sort |
first eiscat measurement of electron-gas temperature in the artificially heated d-region ionosphere |
publisher |
Copernicus Publications |
publishDate |
2000 |
url |
https://doi.org/10.1007/s00585-000-1210-8 https://doaj.org/article/ac683f87666f4cbc97d1f02493b09529 |
genre |
EISCAT |
genre_facet |
EISCAT |
op_source |
Annales Geophysicae, Vol 18, Pp 1210-1215 (2000) |
op_relation |
https://www.ann-geophys.net/18/1210/2000/angeo-18-1210-2000.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.1007/s00585-000-1210-8 0992-7689 1432-0576 https://doaj.org/article/ac683f87666f4cbc97d1f02493b09529 |
op_doi |
https://doi.org/10.1007/s00585-000-1210-8 |
container_title |
Annales Geophysicae |
container_volume |
18 |
container_issue |
9 |
container_start_page |
1210 |
op_container_end_page |
1215 |
_version_ |
1766399980868730880 |