The ionospheric midlatitude trough observed by FORMOSAT-3/COSMIC during solar minimum
This paper for the first time reports global three-dimensional (3-D) structures of the ionospheric midlatitude trough using electron density profiles derived from the GPS radio occultation experiment on board FORMOSAT-3/COSMIC (F3/C) satellites during the solar minimum period, February 2008 to Janua...
Published in: | Journal of Geophysical Research: Space Physics |
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Language: | English |
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American Geophysical Union
2011
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-646 https://doi.org/10.1029/2010JA015544 |
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ftncar:oai:drupal-site.org:articles_10841 2023-09-05T13:23:56+02:00 The ionospheric midlatitude trough observed by FORMOSAT-3/COSMIC during solar minimum Lee, I-Te (author) Wang, Wenbin (author) Liu, Jianyu (author) Chen, C. (author) Lin, C. (author) 2011-06-18 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-646 https://doi.org/10.1029/2010JA015544 en eng American Geophysical Union Journal of Geophysical Research-Space Physics http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-646 doi:10.1029/2010JA015544 wos: 000291824400001 ark:/85065/d7s1832s Copyright 2011 American Geophysical Union. Text article 2011 ftncar https://doi.org/10.1029/2010JA015544 2023-08-14T18:38:10Z This paper for the first time reports global three-dimensional (3-D) structures of the ionospheric midlatitude trough using electron density profiles derived from the GPS radio occultation experiment on board FORMOSAT-3/COSMIC (F3/C) satellites during the solar minimum period, February 2008 to January 2009. Results show that the midlatitude trough extends from dusk to dawn in all four seasons and is most pronounced in the winter hemisphere. The troughs in the two hemispheres are asymmetric, where the trough in the Northern Hemisphere is more evident and stronger than that in the Southern Hemisphere during the equinoctial seasons. In general, the trough minimum position shows a high-low-high latitudinal variation with magnetic local time and occurs at lower latitudes under higher magnetic activity. On the other hand, the midlatitude trough structures become more complex in the Southern Hemisphere because of the nighttime plasma density enhancement of the Weddell Sea Anomaly. Our results demonstrate that the new data set of GPS radio occultation by F3/C is useful to probe the global 3-D electron density structures of the midlatitude trough. Article in Journal/Newspaper Weddell Sea OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Weddell Weddell Sea Journal of Geophysical Research: Space Physics 116 A6 n/a n/a |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
This paper for the first time reports global three-dimensional (3-D) structures of the ionospheric midlatitude trough using electron density profiles derived from the GPS radio occultation experiment on board FORMOSAT-3/COSMIC (F3/C) satellites during the solar minimum period, February 2008 to January 2009. Results show that the midlatitude trough extends from dusk to dawn in all four seasons and is most pronounced in the winter hemisphere. The troughs in the two hemispheres are asymmetric, where the trough in the Northern Hemisphere is more evident and stronger than that in the Southern Hemisphere during the equinoctial seasons. In general, the trough minimum position shows a high-low-high latitudinal variation with magnetic local time and occurs at lower latitudes under higher magnetic activity. On the other hand, the midlatitude trough structures become more complex in the Southern Hemisphere because of the nighttime plasma density enhancement of the Weddell Sea Anomaly. Our results demonstrate that the new data set of GPS radio occultation by F3/C is useful to probe the global 3-D electron density structures of the midlatitude trough. |
author2 |
Lee, I-Te (author) Wang, Wenbin (author) Liu, Jianyu (author) Chen, C. (author) Lin, C. (author) |
format |
Article in Journal/Newspaper |
title |
The ionospheric midlatitude trough observed by FORMOSAT-3/COSMIC during solar minimum |
spellingShingle |
The ionospheric midlatitude trough observed by FORMOSAT-3/COSMIC during solar minimum |
title_short |
The ionospheric midlatitude trough observed by FORMOSAT-3/COSMIC during solar minimum |
title_full |
The ionospheric midlatitude trough observed by FORMOSAT-3/COSMIC during solar minimum |
title_fullStr |
The ionospheric midlatitude trough observed by FORMOSAT-3/COSMIC during solar minimum |
title_full_unstemmed |
The ionospheric midlatitude trough observed by FORMOSAT-3/COSMIC during solar minimum |
title_sort |
ionospheric midlatitude trough observed by formosat-3/cosmic during solar minimum |
publisher |
American Geophysical Union |
publishDate |
2011 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-646 https://doi.org/10.1029/2010JA015544 |
geographic |
Weddell Weddell Sea |
geographic_facet |
Weddell Weddell Sea |
genre |
Weddell Sea |
genre_facet |
Weddell Sea |
op_relation |
Journal of Geophysical Research-Space Physics http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-646 doi:10.1029/2010JA015544 wos: 000291824400001 ark:/85065/d7s1832s |
op_rights |
Copyright 2011 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2010JA015544 |
container_title |
Journal of Geophysical Research: Space Physics |
container_volume |
116 |
container_issue |
A6 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1776204511416680448 |