An Opposite Response of the Low-Latitude Ionosphere at Asian and American Sectors During Storm Recovery Phases: Drivers From Below or Above. Xiong, C., Lühr, H., & Yamazaki, Y. Journal of Geophysical Research: Space Physics, 124(7):6266–6280, 2019. Number: 7![An Opposite Response of the Low-Latitude Ionosphere at Asian and American Sectors During Storm Recovery Phases: Drivers From Below or Above [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex In this study, we focus on the recovery phase of a geomagnetic storm that happened on 6–11 September 2017. The ground-based total electron content data, as well as the F region in situ electron density, measured by the Swarm satellites show an interesting feature, revealing at low and equatorial latitudes on the dayside ionosphere prominent positive and negative responses at the Asian and American longitudinal sectors, respectively. The global distribution of thermospheric O/N2 ratio measured by global ultraviolet imager on board the Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics satellite cannot well explain such longitudinally opposite response of the ionosphere. Comparison between the equatorial electrojet variations from stations at Huancayo in Peru and Davao in the Philippines suggests that the longitudinally opposite ionospheric response should be closely associated with the interplay of E region electrodynamics. By further applying nonmigrating tidal analysis to the ground-based total electron content data, we find that the diurnal tidal components, D0 and DW2, as well as the semidiurnal component SW1, are clearly enhanced over prestorm days and persist into the early recovery phase, indicating the possibility of lower atmospheric forcing contributing to the longitudinally opposite response of the ionosphere on 9–11 September 2017.
@article{xiong_opposite_2019,
title = {An {Opposite} {Response} of the {Low}-{Latitude} {Ionosphere} at {Asian} and {American} {Sectors} {During} {Storm} {Recovery} {Phases}: {Drivers} {From} {Below} or {Above}},
volume = {124},
copyright = {©2019. American Geophysical Union. All Rights Reserved.},
issn = {2169-9402},
shorttitle = {An {Opposite} {Response} of the {Low}-{Latitude} {Ionosphere} at {Asian} and {American} {Sectors} {During} {Storm} {Recovery} {Phases}},
url = {http://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019JA026917},
doi = {10.1029/2019JA026917},
abstract = {In this study, we focus on the recovery phase of a geomagnetic storm that happened on 6–11 September 2017. The ground-based total electron content data, as well as the F region in situ electron density, measured by the Swarm satellites show an interesting feature, revealing at low and equatorial latitudes on the dayside ionosphere prominent positive and negative responses at the Asian and American longitudinal sectors, respectively. The global distribution of thermospheric O/N2 ratio measured by global ultraviolet imager on board the Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics satellite cannot well explain such longitudinally opposite response of the ionosphere. Comparison between the equatorial electrojet variations from stations at Huancayo in Peru and Davao in the Philippines suggests that the longitudinally opposite ionospheric response should be closely associated with the interplay of E region electrodynamics. By further applying nonmigrating tidal analysis to the ground-based total electron content data, we find that the diurnal tidal components, D0 and DW2, as well as the semidiurnal component SW1, are clearly enhanced over prestorm days and persist into the early recovery phase, indicating the possibility of lower atmospheric forcing contributing to the longitudinally opposite response of the ionosphere on 9–11 September 2017.},
language = {en},
number = {7},
urldate = {2019-12-09},
journal = {Journal of Geophysical Research: Space Physics},
author = {Xiong, Chao and Lühr, Hermann and Yamazaki, Yosuke},
year = {2019},
note = {Number: 7},
keywords = {geomagnetic storms, ionospheric response, longituidnal asymmetry, lower atmospheric forcing, storm recovery phase},
pages = {6266--6280}
}
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By further applying nonmigrating tidal analysis to the ground-based total electron content data, we find that the diurnal tidal components, D0 and DW2, as well as the semidiurnal component SW1, are clearly enhanced over prestorm days and persist into the early recovery phase, indicating the possibility of lower atmospheric forcing contributing to the longitudinally opposite response of the ionosphere on 9–11 September 2017.","language":"en","number":"7","urldate":"2019-12-09","journal":"Journal of Geophysical Research: Space Physics","author":[{"propositions":[],"lastnames":["Xiong"],"firstnames":["Chao"],"suffixes":[]},{"propositions":[],"lastnames":["Lühr"],"firstnames":["Hermann"],"suffixes":[]},{"propositions":[],"lastnames":["Yamazaki"],"firstnames":["Yosuke"],"suffixes":[]}],"year":"2019","note":"Number: 7","keywords":"geomagnetic storms, ionospheric response, longituidnal asymmetry, lower atmospheric forcing, storm recovery phase","pages":"6266–6280","bibtex":"@article{xiong_opposite_2019,\n\ttitle = {An {Opposite} {Response} of the {Low}-{Latitude} {Ionosphere} at {Asian} and {American} {Sectors} {During} {Storm} {Recovery} {Phases}: {Drivers} {From} {Below} or {Above}},\n\tvolume = {124},\n\tcopyright = {©2019. American Geophysical Union. All Rights Reserved.},\n\tissn = {2169-9402},\n\tshorttitle = {An {Opposite} {Response} of the {Low}-{Latitude} {Ionosphere} at {Asian} and {American} {Sectors} {During} {Storm} {Recovery} {Phases}},\n\turl = {http://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019JA026917},\n\tdoi = {10.1029/2019JA026917},\n\tabstract = {In this study, we focus on the recovery phase of a geomagnetic storm that happened on 6–11 September 2017. The ground-based total electron content data, as well as the F region in situ electron density, measured by the Swarm satellites show an interesting feature, revealing at low and equatorial latitudes on the dayside ionosphere prominent positive and negative responses at the Asian and American longitudinal sectors, respectively. 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