Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic Storm
Abstract This paper investigates the midlatitude ionospheric disturbances over the American/Atlantic longitude sector during an intense geomagnetic storm on 23 April 2023. The study utilized a combination of ground‐based observations (Global Navigation Satellite System total electron content and ion...
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Wiley
2024-03-01
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| Series: | Space Weather |
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| Online Access: | https://doi.org/10.1029/2023SW003704 |
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| author | Ercha Aa Shun‐Rong Zhang Shasha Zou Wenbin Wang Zihan Wang Xuguang Cai Philip J. Erickson Anthea J. Coster |
| author_facet | Ercha Aa Shun‐Rong Zhang Shasha Zou Wenbin Wang Zihan Wang Xuguang Cai Philip J. Erickson Anthea J. Coster |
| author_sort | Ercha Aa |
| collection | DOAJ |
| description | Abstract This paper investigates the midlatitude ionospheric disturbances over the American/Atlantic longitude sector during an intense geomagnetic storm on 23 April 2023. The study utilized a combination of ground‐based observations (Global Navigation Satellite System total electron content and ionosonde) along with measurements from multiple satellite missions (GOLD, Swarm, Defense Meteorological Satellite Program, and TIMED/GUVI) to analyze storm‐time electrodynamics and neutral dynamics. We found that the storm main phase was characterized by distinct midlatitude ionospheric density gradient structures as follows: (a) In the European‐Atlantic longitude sector, a significant midlatitude bubble‐like ionospheric super‐depletion structure (BLISS) was observed after sunset. This BLISS appeared as a low‐density channel extending poleward/westward and reached ∼40° geomagnetic latitude, corresponding to an APEX height of ∼5,000 km. (b) Coincident with the BLISS, a dynamic storm‐enhanced density plume rapidly formed and decayed at local afternoon in the North American sector, with the plume intensity being doubled and halved in just a few hours. (c) The simultaneous occurrence of these strong yet opposite midlatitude gradient structures could be mainly attributed to common key drivers of prompt penetration electric fields and subauroral polarization stream electric fields. This shed light on the important role of storm‐time electrodynamic processes in shaping global ionospheric disturbances. |
| format | Article |
| id | doaj-art-6bea5287a13a4250b2d8981d3d521293 |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-6bea5287a13a4250b2d8981d3d5212932025-01-14T16:30:30ZengWileySpace Weather1542-73902024-03-01223n/an/a10.1029/2023SW003704Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic StormErcha Aa0Shun‐Rong Zhang1Shasha Zou2Wenbin Wang3Zihan Wang4Xuguang Cai5Philip J. Erickson6Anthea J. Coster7Haystack Observatory, Massachusetts Institute of Technology Westford MA USAHaystack Observatory, Massachusetts Institute of Technology Westford MA USADepartment of Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USAHigh Altitude Observatory, National Center for Atmospheric Research Boulder CO USADepartment of Physics University of Texas at Arlington Arlington TX USALaboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USAHaystack Observatory, Massachusetts Institute of Technology Westford MA USAHaystack Observatory, Massachusetts Institute of Technology Westford MA USAAbstract This paper investigates the midlatitude ionospheric disturbances over the American/Atlantic longitude sector during an intense geomagnetic storm on 23 April 2023. The study utilized a combination of ground‐based observations (Global Navigation Satellite System total electron content and ionosonde) along with measurements from multiple satellite missions (GOLD, Swarm, Defense Meteorological Satellite Program, and TIMED/GUVI) to analyze storm‐time electrodynamics and neutral dynamics. We found that the storm main phase was characterized by distinct midlatitude ionospheric density gradient structures as follows: (a) In the European‐Atlantic longitude sector, a significant midlatitude bubble‐like ionospheric super‐depletion structure (BLISS) was observed after sunset. This BLISS appeared as a low‐density channel extending poleward/westward and reached ∼40° geomagnetic latitude, corresponding to an APEX height of ∼5,000 km. (b) Coincident with the BLISS, a dynamic storm‐enhanced density plume rapidly formed and decayed at local afternoon in the North American sector, with the plume intensity being doubled and halved in just a few hours. (c) The simultaneous occurrence of these strong yet opposite midlatitude gradient structures could be mainly attributed to common key drivers of prompt penetration electric fields and subauroral polarization stream electric fields. This shed light on the important role of storm‐time electrodynamic processes in shaping global ionospheric disturbances.https://doi.org/10.1029/2023SW003704ionospheric stormbubble‐like ionospheric super‐depletion structureSED plumeSAPSEPBs |
| spellingShingle | Ercha Aa Shun‐Rong Zhang Shasha Zou Wenbin Wang Zihan Wang Xuguang Cai Philip J. Erickson Anthea J. Coster Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic Storm Space Weather ionospheric storm bubble‐like ionospheric super‐depletion structure SED plume SAPS EPBs |
| title | Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic Storm |
| title_full | Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic Storm |
| title_fullStr | Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic Storm |
| title_full_unstemmed | Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic Storm |
| title_short | Significant Midlatitude Bubble‐Like Ionospheric Super‐Depletion Structure (BLISS) and Dynamic Variation of Storm‐Enhanced Density Plume During the 23 April 2023 Geomagnetic Storm |
| title_sort | significant midlatitude bubble like ionospheric super depletion structure bliss and dynamic variation of storm enhanced density plume during the 23 april 2023 geomagnetic storm |
| topic | ionospheric storm bubble‐like ionospheric super‐depletion structure SED plume SAPS EPBs |
| url | https://doi.org/10.1029/2023SW003704 |
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