Behavior of the F₂ peak ionosphere over the South Pacific at dusk during quiet summer conditions from COSMIC data
The six-satellite Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) mission makes routine ionospheric measurements over the entire globe using occultation techniques. These observations have been used in this study to develop global-scale climate maps of Nm F₂ and hm f₂...
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American Geophysical Union
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ftncar:oai:drupal-site.org:articles_6058 2023-10-01T04:00:02+02:00 Behavior of the F₂ peak ionosphere over the South Pacific at dusk during quiet summer conditions from COSMIC data Burns, Alan (author) Zeng, Zhen (author) Wang, Wenbin (author) Lei, Jiuhou (author) Solomon, Stanley (author) Richmond, Arthur (author) Killeen, Timothy (author) Kuo, Ying-Hwa (author) 2008-12-11 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-001-138 https://doi.org/10.1029/2008JA013308 en eng American Geophysical Union Journal of Geophysical Research-Space Physics http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-001-138 doi:10.1029/2008JA013308 ark:/85065/d7n879x8 An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union. Climatology Text article 2008 ftncar https://doi.org/10.1029/2008JA013308 2023-09-04T18:27:07Z The six-satellite Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) mission makes routine ionospheric measurements over the entire globe using occultation techniques. These observations have been used in this study to develop global-scale climate maps of Nm F₂ and hm f₂ during the southern (northern) summer (winter). Enhanced electron densities that appear to be associated with the southern, equatorial (Appleton) anomaly are displaced far southward at dusk and, within about an hour, form the Weddell Sea anomaly. Coincidentally, the height of the F₂ peak increases on the northern boundary of this anomaly. This height increase is also displaced southward as the enhanced electron densities are displaced southward, suggesting that the electron density increases are associated with the F₂ peak rising. As well as being an interesting phenomenon in its own right, this behavior may shed new light on the formation of the Weddell Sea anomaly. No unambiguous explanation for this behavior can be determined from the data presently available, but an examination of some possibilities suggests that an evening downward flux of plasma from the plasmasphere may be at least partly responsible for the phenomenon. Article in Journal/Newspaper Weddell Sea OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Pacific Weddell Weddell Sea Journal of Geophysical Research: Space Physics 113 A12 n/a n/a |
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Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
topic |
Climatology |
spellingShingle |
Climatology Behavior of the F₂ peak ionosphere over the South Pacific at dusk during quiet summer conditions from COSMIC data |
topic_facet |
Climatology |
description |
The six-satellite Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) mission makes routine ionospheric measurements over the entire globe using occultation techniques. These observations have been used in this study to develop global-scale climate maps of Nm F₂ and hm f₂ during the southern (northern) summer (winter). Enhanced electron densities that appear to be associated with the southern, equatorial (Appleton) anomaly are displaced far southward at dusk and, within about an hour, form the Weddell Sea anomaly. Coincidentally, the height of the F₂ peak increases on the northern boundary of this anomaly. This height increase is also displaced southward as the enhanced electron densities are displaced southward, suggesting that the electron density increases are associated with the F₂ peak rising. As well as being an interesting phenomenon in its own right, this behavior may shed new light on the formation of the Weddell Sea anomaly. No unambiguous explanation for this behavior can be determined from the data presently available, but an examination of some possibilities suggests that an evening downward flux of plasma from the plasmasphere may be at least partly responsible for the phenomenon. |
author2 |
Burns, Alan (author) Zeng, Zhen (author) Wang, Wenbin (author) Lei, Jiuhou (author) Solomon, Stanley (author) Richmond, Arthur (author) Killeen, Timothy (author) Kuo, Ying-Hwa (author) |
format |
Article in Journal/Newspaper |
title |
Behavior of the F₂ peak ionosphere over the South Pacific at dusk during quiet summer conditions from COSMIC data |
title_short |
Behavior of the F₂ peak ionosphere over the South Pacific at dusk during quiet summer conditions from COSMIC data |
title_full |
Behavior of the F₂ peak ionosphere over the South Pacific at dusk during quiet summer conditions from COSMIC data |
title_fullStr |
Behavior of the F₂ peak ionosphere over the South Pacific at dusk during quiet summer conditions from COSMIC data |
title_full_unstemmed |
Behavior of the F₂ peak ionosphere over the South Pacific at dusk during quiet summer conditions from COSMIC data |
title_sort |
behavior of the f₂ peak ionosphere over the south pacific at dusk during quiet summer conditions from cosmic data |
publisher |
American Geophysical Union |
publishDate |
2008 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-001-138 https://doi.org/10.1029/2008JA013308 |
geographic |
Pacific Weddell Weddell Sea |
geographic_facet |
Pacific 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-000-000-001-138 doi:10.1029/2008JA013308 ark:/85065/d7n879x8 |
op_rights |
An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2008JA013308 |
container_title |
Journal of Geophysical Research: Space Physics |
container_volume |
113 |
container_issue |
A12 |
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1778534670227472384 |