Upper thermospheric ion-neutral coupling from combined optical and radar experiments over Svalbard
The response of thermospheric neutral parameters such as winds and temperatures to rapid changes in geophysical conditions has usually been considered to be relatively slow, on the order of hours, and steady, representing an integration of more rapid ionospheric changes. Quantifying the relevant ion...
Published in: | Annales Geophysicae |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2009
|
Subjects: | |
Online Access: | https://doi.org/10.5194/angeo-27-4293-2009 https://noa.gwlb.de/receive/cop_mods_00029541 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029496/angeo-27-4293-2009.pdf https://angeo.copernicus.org/articles/27/4293/2009/angeo-27-4293-2009.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00029541 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00029541 2023-05-15T18:29:42+02:00 Upper thermospheric ion-neutral coupling from combined optical and radar experiments over Svalbard Griffin, E. M. Aruliah, A. L. McWhirter, I. Yiu, H.-C. I. Charalambous, A. 2009-11 electronic https://doi.org/10.5194/angeo-27-4293-2009 https://noa.gwlb.de/receive/cop_mods_00029541 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029496/angeo-27-4293-2009.pdf https://angeo.copernicus.org/articles/27/4293/2009/angeo-27-4293-2009.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-27-4293-2009 https://noa.gwlb.de/receive/cop_mods_00029541 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029496/angeo-27-4293-2009.pdf https://angeo.copernicus.org/articles/27/4293/2009/angeo-27-4293-2009.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2009 ftnonlinearchiv https://doi.org/10.5194/angeo-27-4293-2009 2022-02-08T22:47:40Z The response of thermospheric neutral parameters such as winds and temperatures to rapid changes in geophysical conditions has usually been considered to be relatively slow, on the order of hours, and steady, representing an integration of more rapid ionospheric changes. Quantifying the relevant ion-neutral coupling has proved difficult due to a lack of relevant laboratory data for the most important collisions, namely between neutral atomic oxygen and its first ion. As a result the representation of ion-neutral coupling in numerical models of the upper atmosphere has often produced poor comparison to experimental data. Using a unique combination of spatially extended ion and neutral thermospheric parameters we show that the neutral response can be very rapid, within 15 min, to imposed forcing via ion-neutral coupling. The array of complementary instrumentation measuring the thermosphere above Svalbard in the Northern Hemisphere allows detailed study of the causes and effects from both the ion and neutral perspectives. The implications for development and testing of the thermospheric numerical models is discussed. Article in Journal/Newspaper Svalbard Niedersächsisches Online-Archiv NOA Svalbard Annales Geophysicae 27 11 4293 4303 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Griffin, E. M. Aruliah, A. L. McWhirter, I. Yiu, H.-C. I. Charalambous, A. Upper thermospheric ion-neutral coupling from combined optical and radar experiments over Svalbard |
topic_facet |
article Verlagsveröffentlichung |
description |
The response of thermospheric neutral parameters such as winds and temperatures to rapid changes in geophysical conditions has usually been considered to be relatively slow, on the order of hours, and steady, representing an integration of more rapid ionospheric changes. Quantifying the relevant ion-neutral coupling has proved difficult due to a lack of relevant laboratory data for the most important collisions, namely between neutral atomic oxygen and its first ion. As a result the representation of ion-neutral coupling in numerical models of the upper atmosphere has often produced poor comparison to experimental data. Using a unique combination of spatially extended ion and neutral thermospheric parameters we show that the neutral response can be very rapid, within 15 min, to imposed forcing via ion-neutral coupling. The array of complementary instrumentation measuring the thermosphere above Svalbard in the Northern Hemisphere allows detailed study of the causes and effects from both the ion and neutral perspectives. The implications for development and testing of the thermospheric numerical models is discussed. |
format |
Article in Journal/Newspaper |
author |
Griffin, E. M. Aruliah, A. L. McWhirter, I. Yiu, H.-C. I. Charalambous, A. |
author_facet |
Griffin, E. M. Aruliah, A. L. McWhirter, I. Yiu, H.-C. I. Charalambous, A. |
author_sort |
Griffin, E. M. |
title |
Upper thermospheric ion-neutral coupling from combined optical and radar experiments over Svalbard |
title_short |
Upper thermospheric ion-neutral coupling from combined optical and radar experiments over Svalbard |
title_full |
Upper thermospheric ion-neutral coupling from combined optical and radar experiments over Svalbard |
title_fullStr |
Upper thermospheric ion-neutral coupling from combined optical and radar experiments over Svalbard |
title_full_unstemmed |
Upper thermospheric ion-neutral coupling from combined optical and radar experiments over Svalbard |
title_sort |
upper thermospheric ion-neutral coupling from combined optical and radar experiments over svalbard |
publisher |
Copernicus Publications |
publishDate |
2009 |
url |
https://doi.org/10.5194/angeo-27-4293-2009 https://noa.gwlb.de/receive/cop_mods_00029541 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029496/angeo-27-4293-2009.pdf https://angeo.copernicus.org/articles/27/4293/2009/angeo-27-4293-2009.pdf |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
Svalbard |
genre_facet |
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-27-4293-2009 https://noa.gwlb.de/receive/cop_mods_00029541 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029496/angeo-27-4293-2009.pdf https://angeo.copernicus.org/articles/27/4293/2009/angeo-27-4293-2009.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/angeo-27-4293-2009 |
container_title |
Annales Geophysicae |
container_volume |
27 |
container_issue |
11 |
container_start_page |
4293 |
op_container_end_page |
4303 |
_version_ |
1766212991392415744 |