Mon Oct 13, F. Flechtner
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Das, S. K., Stolle, C., Yamazaki, Y., Rodr\'ıguez-Zuluaga, J., Wan, X., Kervalishvili, G., Rauberg, J., Zhong, J., and Perwitasari, S., 2025. On the F-Region Ionospheric Plasma Density Distribution and Irregularities Response During the May-2024 Geomagnetic Storm Observed by LEO Satellites. Geophysical Research Letters, 52(10):e2025GL115780, doi:10.1029/2025GL115780.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025GeoRL..5215780D,
author = {{Das}, S.~K. and {Stolle}, C. and {Yamazaki}, Y. and {Rodr{\'\i}guez-Zuluaga}, J. and {Wan}, X. and {Kervalishvili}, G. and {Rauberg}, J. and {Zhong}, J. and {Perwitasari}, S.},
title = "{On the F-Region Ionospheric Plasma Density Distribution and Irregularities Response During the May-2024 Geomagnetic Storm Observed by LEO Satellites}",
journal = {\grl},
keywords = {geomagnetic storm, equatorial ionization anomaly, equatorial plasma irregularities, prompt penetration electric field, disturbance dynamo electric field, ionosphere},
year = 2025,
month = may,
volume = {52},
number = {10},
eid = {e2025GL115780},
pages = {e2025GL115780},
abstract = "{This study investigates the F-region plasma density and irregularities
response during the May-2024 storm using Swarm and Gravity
Recovery and Climate Experiment Follow-On (GRACE-FO) data.
Swarm-B provided measurements at 11/23 LTs. Data from GRACE-FO
and Swarm-A were collected at 05/17 and 07/19 LTs. Following the
storm's commencement on May 10, the equatorial ionization
anomaly (EIA) was particularly strong (depleted) on the dayside
(nightside). An intensification of the EIA was observed during
the early morning 05/07 LTs. Variability during the storm's
initial and recovery phases indicate the strong influence of
electric fields and thermospheric winds. The magnitude of the
EIA was greater during the Halloween storm, but the EIA's
relative variabilities were of similar order. Equatorial plasma
depletion (EPD) was observed, with apex altitudes reaching
${\sim} $5,000 km before midnight on May 11 and ${\sim} $3,400
km in the early morning. We suggest that the morning EPDs are
generated after mid-night rather than being remnants from the
previous evening.}",
doi = {10.1029/2025GL115780},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025GeoRL..5215780D},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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