GOLD Mission's Observation About the Geomagnetic Storm Effects on the Nighttime Equatorial Ionization Anomaly (EIA) and Equatorial Plasma Bubbles (EPB) During a Solar Minimum Equinox
Abstract The nighttime ionospheric response to a geomagnetic storm that occurred on 23–29 September 2020 is investigated over the South American, Atlantic, and West African longitude sectors using NASA's Global‐scale Observations of the Limb and Disk measurements. On 27 September the solar wind...
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| Format: | Article |
| Language: | English |
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Wiley
2023-03-01
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| Series: | Space Weather |
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| Online Access: | https://doi.org/10.1029/2022SW003321 |
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| author | Deepak Kumar Karan Richard W. Eastes Robert E. Daniell Carlos R. Martinis William E. McClintock |
| author_facet | Deepak Kumar Karan Richard W. Eastes Robert E. Daniell Carlos R. Martinis William E. McClintock |
| author_sort | Deepak Kumar Karan |
| collection | DOAJ |
| description | Abstract The nighttime ionospheric response to a geomagnetic storm that occurred on 23–29 September 2020 is investigated over the South American, Atlantic, and West African longitude sectors using NASA's Global‐scale Observations of the Limb and Disk measurements. On 27 September the solar wind conditions were favorable for prompt penetration electric fields to influence the equatorial ionosphere over extended longitudes. The equatorial ionization anomaly (EIA) crests were shifted 8°–10° poleward compared to the quiet time monthly mean across ∼65°–35°W during the main phase. Ionosonde hmF2 (peak electron density height) measurements from Fortaleza (GG: 3.9°S and 38.4°W) indicated a stronger prereversal enhancement this evening than other nights. As a result, equatorial plasma bubbles (EPB) occurred at these longitudes on this evening. This is the first simultaneous investigation of EIA morphology and EPB occurrence rate over an extended longitude range from geostationary orbit during a geomagnetic storm. |
| format | Article |
| id | doaj-art-ff77d9bb86b841978b942872f9e13cb4 |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2023-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-ff77d9bb86b841978b942872f9e13cb42025-01-14T16:27:17ZengWileySpace Weather1542-73902023-03-01213n/an/a10.1029/2022SW003321GOLD Mission's Observation About the Geomagnetic Storm Effects on the Nighttime Equatorial Ionization Anomaly (EIA) and Equatorial Plasma Bubbles (EPB) During a Solar Minimum EquinoxDeepak Kumar Karan0Richard W. Eastes1Robert E. Daniell2Carlos R. Martinis3William E. McClintock4Laboratory for Atmospheric and Space Physics University of Colorado Boulder CO USALaboratory for Atmospheric and Space Physics University of Colorado Boulder CO USAIonospheric Physics Stoughton MA USACenter for Space Physics Boston University Boston MA USALaboratory for Atmospheric and Space Physics University of Colorado Boulder CO USAAbstract The nighttime ionospheric response to a geomagnetic storm that occurred on 23–29 September 2020 is investigated over the South American, Atlantic, and West African longitude sectors using NASA's Global‐scale Observations of the Limb and Disk measurements. On 27 September the solar wind conditions were favorable for prompt penetration electric fields to influence the equatorial ionosphere over extended longitudes. The equatorial ionization anomaly (EIA) crests were shifted 8°–10° poleward compared to the quiet time monthly mean across ∼65°–35°W during the main phase. Ionosonde hmF2 (peak electron density height) measurements from Fortaleza (GG: 3.9°S and 38.4°W) indicated a stronger prereversal enhancement this evening than other nights. As a result, equatorial plasma bubbles (EPB) occurred at these longitudes on this evening. This is the first simultaneous investigation of EIA morphology and EPB occurrence rate over an extended longitude range from geostationary orbit during a geomagnetic storm.https://doi.org/10.1029/2022SW003321NASA GOLD missiongeomagnetic stormequatorial ionization anomalyequatorial plasma bubblesnighttime ionosphereOI 135.6 nm nightglow |
| spellingShingle | Deepak Kumar Karan Richard W. Eastes Robert E. Daniell Carlos R. Martinis William E. McClintock GOLD Mission's Observation About the Geomagnetic Storm Effects on the Nighttime Equatorial Ionization Anomaly (EIA) and Equatorial Plasma Bubbles (EPB) During a Solar Minimum Equinox Space Weather NASA GOLD mission geomagnetic storm equatorial ionization anomaly equatorial plasma bubbles nighttime ionosphere OI 135.6 nm nightglow |
| title | GOLD Mission's Observation About the Geomagnetic Storm Effects on the Nighttime Equatorial Ionization Anomaly (EIA) and Equatorial Plasma Bubbles (EPB) During a Solar Minimum Equinox |
| title_full | GOLD Mission's Observation About the Geomagnetic Storm Effects on the Nighttime Equatorial Ionization Anomaly (EIA) and Equatorial Plasma Bubbles (EPB) During a Solar Minimum Equinox |
| title_fullStr | GOLD Mission's Observation About the Geomagnetic Storm Effects on the Nighttime Equatorial Ionization Anomaly (EIA) and Equatorial Plasma Bubbles (EPB) During a Solar Minimum Equinox |
| title_full_unstemmed | GOLD Mission's Observation About the Geomagnetic Storm Effects on the Nighttime Equatorial Ionization Anomaly (EIA) and Equatorial Plasma Bubbles (EPB) During a Solar Minimum Equinox |
| title_short | GOLD Mission's Observation About the Geomagnetic Storm Effects on the Nighttime Equatorial Ionization Anomaly (EIA) and Equatorial Plasma Bubbles (EPB) During a Solar Minimum Equinox |
| title_sort | gold mission s observation about the geomagnetic storm effects on the nighttime equatorial ionization anomaly eia and equatorial plasma bubbles epb during a solar minimum equinox |
| topic | NASA GOLD mission geomagnetic storm equatorial ionization anomaly equatorial plasma bubbles nighttime ionosphere OI 135.6 nm nightglow |
| url | https://doi.org/10.1029/2022SW003321 |
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