TRANS4: a new coupled electron/proton transport code – comparison to observations above Svalbard using ESR, DMSP and optical measurements
We present for the first time a numerical kinetic/fluid code for the ionosphere coupling proton and electron effects. It solves the fluid transport equations up to the eighth moment, and the kinetic equations for suprathermal particles. Its new feature is that for the latter, both electrons and prot...
Published in: | Annales Geophysicae |
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Copernicus Publications
2007
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00032556 2023-05-15T16:04:44+02:00 TRANS4: a new coupled electron/proton transport code – comparison to observations above Svalbard using ESR, DMSP and optical measurements Simon, C. Lilensten, J. Moen, J. Holmes, J. M. Ogawa, Y. Oksavik, K. Denig, W. F. 2007-03 electronic https://doi.org/10.5194/angeo-25-661-2007 https://noa.gwlb.de/receive/cop_mods_00032556 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032510/angeo-25-661-2007.pdf https://angeo.copernicus.org/articles/25/661/2007/angeo-25-661-2007.pdf eng eng Copernicus Publications Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.5194/angeo-25-661-2007 https://noa.gwlb.de/receive/cop_mods_00032556 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032510/angeo-25-661-2007.pdf https://angeo.copernicus.org/articles/25/661/2007/angeo-25-661-2007.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2007 ftnonlinearchiv https://doi.org/10.5194/angeo-25-661-2007 2022-02-08T22:46:11Z We present for the first time a numerical kinetic/fluid code for the ionosphere coupling proton and electron effects. It solves the fluid transport equations up to the eighth moment, and the kinetic equations for suprathermal particles. Its new feature is that for the latter, both electrons and protons are taken into account, while the preceding codes (TRANSCAR) only considered electrons. Thus it is now possible to compute in a single run the electron and ion densities due to proton precipitation. This code is successfully applied to a multi-instrumental data set recorded on 22 January 2004. We make use of measurements from the following set of instruments: the Defence Meteorological Satellite Program (DMSP) F-13 measures the precipitating particle fluxes, the EISCAT Svalbard Radar (ESR) measures the ionospheric parameters, the thermospheric oxygen lines are measured by an all-sky camera and the Hα line is given by an Ebert-Fastie spectrometer located at Ny-Ålesund. We show that the code computes the Hα spectral line profile with an excellent agreement with observations, providing some complementary information on the physical state of the atmosphere. We also show the relative effects of protons and electrons as to the electron densities. Computed electron densities are finally compared to the direct ESR measurements. Article in Journal/Newspaper EISCAT Ny Ålesund Ny-Ålesund Svalbard Niedersächsisches Online-Archiv NOA Ny-Ålesund Svalbard Annales Geophysicae 25 3 661 673 |
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Niedersächsisches Online-Archiv NOA |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Simon, C. Lilensten, J. Moen, J. Holmes, J. M. Ogawa, Y. Oksavik, K. Denig, W. F. TRANS4: a new coupled electron/proton transport code – comparison to observations above Svalbard using ESR, DMSP and optical measurements |
topic_facet |
article Verlagsveröffentlichung |
description |
We present for the first time a numerical kinetic/fluid code for the ionosphere coupling proton and electron effects. It solves the fluid transport equations up to the eighth moment, and the kinetic equations for suprathermal particles. Its new feature is that for the latter, both electrons and protons are taken into account, while the preceding codes (TRANSCAR) only considered electrons. Thus it is now possible to compute in a single run the electron and ion densities due to proton precipitation. This code is successfully applied to a multi-instrumental data set recorded on 22 January 2004. We make use of measurements from the following set of instruments: the Defence Meteorological Satellite Program (DMSP) F-13 measures the precipitating particle fluxes, the EISCAT Svalbard Radar (ESR) measures the ionospheric parameters, the thermospheric oxygen lines are measured by an all-sky camera and the Hα line is given by an Ebert-Fastie spectrometer located at Ny-Ålesund. We show that the code computes the Hα spectral line profile with an excellent agreement with observations, providing some complementary information on the physical state of the atmosphere. We also show the relative effects of protons and electrons as to the electron densities. Computed electron densities are finally compared to the direct ESR measurements. |
format |
Article in Journal/Newspaper |
author |
Simon, C. Lilensten, J. Moen, J. Holmes, J. M. Ogawa, Y. Oksavik, K. Denig, W. F. |
author_facet |
Simon, C. Lilensten, J. Moen, J. Holmes, J. M. Ogawa, Y. Oksavik, K. Denig, W. F. |
author_sort |
Simon, C. |
title |
TRANS4: a new coupled electron/proton transport code – comparison to observations above Svalbard using ESR, DMSP and optical measurements |
title_short |
TRANS4: a new coupled electron/proton transport code – comparison to observations above Svalbard using ESR, DMSP and optical measurements |
title_full |
TRANS4: a new coupled electron/proton transport code – comparison to observations above Svalbard using ESR, DMSP and optical measurements |
title_fullStr |
TRANS4: a new coupled electron/proton transport code – comparison to observations above Svalbard using ESR, DMSP and optical measurements |
title_full_unstemmed |
TRANS4: a new coupled electron/proton transport code – comparison to observations above Svalbard using ESR, DMSP and optical measurements |
title_sort |
trans4: a new coupled electron/proton transport code – comparison to observations above svalbard using esr, dmsp and optical measurements |
publisher |
Copernicus Publications |
publishDate |
2007 |
url |
https://doi.org/10.5194/angeo-25-661-2007 https://noa.gwlb.de/receive/cop_mods_00032556 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032510/angeo-25-661-2007.pdf https://angeo.copernicus.org/articles/25/661/2007/angeo-25-661-2007.pdf |
geographic |
Ny-Ålesund Svalbard |
geographic_facet |
Ny-Ålesund Svalbard |
genre |
EISCAT Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
EISCAT Ny Ålesund Ny-Ålesund Svalbard |
op_relation |
Annales Geophysicae -- http://www.bibliothek.uni-regensburg.de/ezeit/?1458425 -- https://www.ann-geophys.net/ -- https://www.ann-geophys.net/volumes.html -- http://link.springer.com/journal/585 -- 1432-0576 https://doi.org/10.5194/angeo-25-661-2007 https://noa.gwlb.de/receive/cop_mods_00032556 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032510/angeo-25-661-2007.pdf https://angeo.copernicus.org/articles/25/661/2007/angeo-25-661-2007.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/angeo-25-661-2007 |
container_title |
Annales Geophysicae |
container_volume |
25 |
container_issue |
3 |
container_start_page |
661 |
op_container_end_page |
673 |
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1766400364278448128 |