Remote sensing and modeling of energetic electron precipitation into the lower ionosphere using VLF/LF radio waves and field aligned current data
A model for the development of electron density height profiles based on space time distributed ionization sources and reaction rates in the lower ionosphere is described. Special attention is payed to the definition of an auroral oval distribution function for energetic electron energy input into t...
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ftdoajarticles:oai:doaj.org/article:e2968019e29445d0b90db0a7784d414b 2023-05-15T16:50:04+02:00 Remote sensing and modeling of energetic electron precipitation into the lower ionosphere using VLF/LF radio waves and field aligned current data E. D. Schmitter 2015-11-01T00:00:00Z https://doi.org/10.5194/ars-13-233-2015 https://doaj.org/article/e2968019e29445d0b90db0a7784d414b DE EN ger eng Copernicus Publications http://www.adv-radio-sci.net/13/233/2015/ars-13-233-2015.pdf https://doaj.org/toc/1684-9965 https://doaj.org/toc/1684-9973 1684-9965 1684-9973 doi:10.5194/ars-13-233-2015 https://doaj.org/article/e2968019e29445d0b90db0a7784d414b Advances in Radio Science, Vol 13, Pp 233-242 (2015) Engineering (General). Civil engineering (General) TA1-2040 article 2015 ftdoajarticles https://doi.org/10.5194/ars-13-233-2015 2022-12-30T21:55:22Z A model for the development of electron density height profiles based on space time distributed ionization sources and reaction rates in the lower ionosphere is described. Special attention is payed to the definition of an auroral oval distribution function for energetic electron energy input into the lower ionosphere based on a Maxwellian energy spectrum. The distribution function is controlled by an activity parameter which is defined proportional to radio signal amplitude disturbances of a VLF/LF transmitter. Adjusting the proportionality constant allows to model precipitation caused VLF/LF signal disturbances using radio wave propagation calculations and to scale the distribution function. Field aligned current (FAC) data from the new Swarm satellite mission are used to constrain the spatial extent of the distribution function. As an example electron precipitation bursts during a moderate substorm on the 12 April 2014 (midnight–dawn) are modeled along the subauroral propagation path from the NFR/TFK transmitter (37.5 kHz, Iceland) to a midlatitude site. Article in Journal/Newspaper Iceland Directory of Open Access Journals: DOAJ Articles Advances in Radio Science 13 233 242 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
German English |
topic |
Engineering (General). Civil engineering (General) TA1-2040 |
spellingShingle |
Engineering (General). Civil engineering (General) TA1-2040 E. D. Schmitter Remote sensing and modeling of energetic electron precipitation into the lower ionosphere using VLF/LF radio waves and field aligned current data |
topic_facet |
Engineering (General). Civil engineering (General) TA1-2040 |
description |
A model for the development of electron density height profiles based on space time distributed ionization sources and reaction rates in the lower ionosphere is described. Special attention is payed to the definition of an auroral oval distribution function for energetic electron energy input into the lower ionosphere based on a Maxwellian energy spectrum. The distribution function is controlled by an activity parameter which is defined proportional to radio signal amplitude disturbances of a VLF/LF transmitter. Adjusting the proportionality constant allows to model precipitation caused VLF/LF signal disturbances using radio wave propagation calculations and to scale the distribution function. Field aligned current (FAC) data from the new Swarm satellite mission are used to constrain the spatial extent of the distribution function. As an example electron precipitation bursts during a moderate substorm on the 12 April 2014 (midnight–dawn) are modeled along the subauroral propagation path from the NFR/TFK transmitter (37.5 kHz, Iceland) to a midlatitude site. |
format |
Article in Journal/Newspaper |
author |
E. D. Schmitter |
author_facet |
E. D. Schmitter |
author_sort |
E. D. Schmitter |
title |
Remote sensing and modeling of energetic electron precipitation into the lower ionosphere using VLF/LF radio waves and field aligned current data |
title_short |
Remote sensing and modeling of energetic electron precipitation into the lower ionosphere using VLF/LF radio waves and field aligned current data |
title_full |
Remote sensing and modeling of energetic electron precipitation into the lower ionosphere using VLF/LF radio waves and field aligned current data |
title_fullStr |
Remote sensing and modeling of energetic electron precipitation into the lower ionosphere using VLF/LF radio waves and field aligned current data |
title_full_unstemmed |
Remote sensing and modeling of energetic electron precipitation into the lower ionosphere using VLF/LF radio waves and field aligned current data |
title_sort |
remote sensing and modeling of energetic electron precipitation into the lower ionosphere using vlf/lf radio waves and field aligned current data |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/ars-13-233-2015 https://doaj.org/article/e2968019e29445d0b90db0a7784d414b |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Advances in Radio Science, Vol 13, Pp 233-242 (2015) |
op_relation |
http://www.adv-radio-sci.net/13/233/2015/ars-13-233-2015.pdf https://doaj.org/toc/1684-9965 https://doaj.org/toc/1684-9973 1684-9965 1684-9973 doi:10.5194/ars-13-233-2015 https://doaj.org/article/e2968019e29445d0b90db0a7784d414b |
op_doi |
https://doi.org/10.5194/ars-13-233-2015 |
container_title |
Advances in Radio Science |
container_volume |
13 |
container_start_page |
233 |
op_container_end_page |
242 |
_version_ |
1766040262890487808 |