Geometric aspects of HF driven Langmuir turbulence in the ionosphere
The geometric aspects of HF-generated Langmuir turbulence in the ionosphere and its detection by radars are theoretically discussed in a broad approach, including local modelling (damped and driven Zakharov system), basic parametric instabilities, polarization and strength of the driving electric fi...
Published in: | Nonlinear Processes in Geophysics |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/npg-10-151-2003 https://npg.copernicus.org/articles/10/151/2003/ |
id |
ftcopernicus:oai:publications.copernicus.org:npg33096 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:npg33096 2023-05-15T16:04:37+02:00 Geometric aspects of HF driven Langmuir turbulence in the ionosphere Mjølhus, E. Helmersen, E. DuBois, D. F. 2018-01-15 application/pdf https://doi.org/10.5194/npg-10-151-2003 https://npg.copernicus.org/articles/10/151/2003/ eng eng doi:10.5194/npg-10-151-2003 https://npg.copernicus.org/articles/10/151/2003/ eISSN: 1607-7946 Text 2018 ftcopernicus https://doi.org/10.5194/npg-10-151-2003 2020-07-20T16:27:44Z The geometric aspects of HF-generated Langmuir turbulence in the ionosphere and its detection by radars are theoretically discussed in a broad approach, including local modelling (damped and driven Zakharov system), basic parametric instabilities, polarization and strength of the driving electric field, and radar configurations. Selected examples of numerical results from the local model are presented and discussed in relation to recent experiments, with emphasis on recent experiments at the EISCAT facilities. Anisotropic aspects of the cavitation process in the magnetized plasma are exhibited. Basic processes of cascades and cavitation are by now well identified in these experiments, but a few problems of the detailed agreement between theory and experiments are pointed out. Text EISCAT Copernicus Publications: E-Journals Langmuir ENVELOPE(-67.150,-67.150,-66.967,-66.967) Zakharov ENVELOPE(130.617,130.617,64.650,64.650) Nonlinear Processes in Geophysics 10 1/2 151 177 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
The geometric aspects of HF-generated Langmuir turbulence in the ionosphere and its detection by radars are theoretically discussed in a broad approach, including local modelling (damped and driven Zakharov system), basic parametric instabilities, polarization and strength of the driving electric field, and radar configurations. Selected examples of numerical results from the local model are presented and discussed in relation to recent experiments, with emphasis on recent experiments at the EISCAT facilities. Anisotropic aspects of the cavitation process in the magnetized plasma are exhibited. Basic processes of cascades and cavitation are by now well identified in these experiments, but a few problems of the detailed agreement between theory and experiments are pointed out. |
format |
Text |
author |
Mjølhus, E. Helmersen, E. DuBois, D. F. |
spellingShingle |
Mjølhus, E. Helmersen, E. DuBois, D. F. Geometric aspects of HF driven Langmuir turbulence in the ionosphere |
author_facet |
Mjølhus, E. Helmersen, E. DuBois, D. F. |
author_sort |
Mjølhus, E. |
title |
Geometric aspects of HF driven Langmuir turbulence in the ionosphere |
title_short |
Geometric aspects of HF driven Langmuir turbulence in the ionosphere |
title_full |
Geometric aspects of HF driven Langmuir turbulence in the ionosphere |
title_fullStr |
Geometric aspects of HF driven Langmuir turbulence in the ionosphere |
title_full_unstemmed |
Geometric aspects of HF driven Langmuir turbulence in the ionosphere |
title_sort |
geometric aspects of hf driven langmuir turbulence in the ionosphere |
publishDate |
2018 |
url |
https://doi.org/10.5194/npg-10-151-2003 https://npg.copernicus.org/articles/10/151/2003/ |
long_lat |
ENVELOPE(-67.150,-67.150,-66.967,-66.967) ENVELOPE(130.617,130.617,64.650,64.650) |
geographic |
Langmuir Zakharov |
geographic_facet |
Langmuir Zakharov |
genre |
EISCAT |
genre_facet |
EISCAT |
op_source |
eISSN: 1607-7946 |
op_relation |
doi:10.5194/npg-10-151-2003 https://npg.copernicus.org/articles/10/151/2003/ |
op_doi |
https://doi.org/10.5194/npg-10-151-2003 |
container_title |
Nonlinear Processes in Geophysics |
container_volume |
10 |
container_issue |
1/2 |
container_start_page |
151 |
op_container_end_page |
177 |
_version_ |
1766400213723906048 |