Investigation for Possible Association of the Topside and Bottomside Ionospheric Irregularities over the Midlatitude Ionosphere
The present study investigates the characteristics of ionospheric irregularities at middle latitudes by examining the association between spread F (SF) events detected by Digisondes and medium-scale travelling ionospheric disturbances (MSTIDs) detected by GNSS with a special emphasis on the coupling...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/15/2/506 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832589255814152192 |
|---|---|
| author | Krishnendu Sekhar Paul Haris Haralambous |
| author_facet | Krishnendu Sekhar Paul Haris Haralambous |
| author_sort | Krishnendu Sekhar Paul |
| collection | DOAJ |
| description | The present study investigates the characteristics of ionospheric irregularities at middle latitudes by examining the association between spread F (SF) events detected by Digisondes and medium-scale travelling ionospheric disturbances (MSTIDs) detected by GNSS with a special emphasis on the coupling with topside irregularities observed by Swarm satellites based on in situ electron density (Ne) measurements. We analyzed SF events over the European midlatitude region from 2015 to 2017, over six Digisonde stations coinciding with Swarm satellite overpasses. Swarm latitudinal Ne profiles were used to identify topside irregularities, while GNSS d-TEC and ROTI maps were used to track MSTIDs and irregularities, respectively. Based on ten selected cases demonstrating concurrent SF and topside irregularities, our findings suggest a strong association between SF in the bottomside ionosphere and fluctuations in topside Ne. |
| format | Article |
| id | doaj-art-4c650bdd4a3b439981d3257af7bb2624 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-4c650bdd4a3b439981d3257af7bb26242025-01-24T13:19:36ZengMDPI AGApplied Sciences2076-34172025-01-0115250610.3390/app15020506Investigation for Possible Association of the Topside and Bottomside Ionospheric Irregularities over the Midlatitude IonosphereKrishnendu Sekhar Paul0Haris Haralambous1Frederick Research Center, Nicosia 1036, CyprusFrederick Research Center, Nicosia 1036, CyprusThe present study investigates the characteristics of ionospheric irregularities at middle latitudes by examining the association between spread F (SF) events detected by Digisondes and medium-scale travelling ionospheric disturbances (MSTIDs) detected by GNSS with a special emphasis on the coupling with topside irregularities observed by Swarm satellites based on in situ electron density (Ne) measurements. We analyzed SF events over the European midlatitude region from 2015 to 2017, over six Digisonde stations coinciding with Swarm satellite overpasses. Swarm latitudinal Ne profiles were used to identify topside irregularities, while GNSS d-TEC and ROTI maps were used to track MSTIDs and irregularities, respectively. Based on ten selected cases demonstrating concurrent SF and topside irregularities, our findings suggest a strong association between SF in the bottomside ionosphere and fluctuations in topside Ne.https://www.mdpi.com/2076-3417/15/2/506midlatitude ionospherespread Fswarmtopside irregularitiesMSTIDsROTI |
| spellingShingle | Krishnendu Sekhar Paul Haris Haralambous Investigation for Possible Association of the Topside and Bottomside Ionospheric Irregularities over the Midlatitude Ionosphere Applied Sciences midlatitude ionosphere spread F swarm topside irregularities MSTIDs ROTI |
| title | Investigation for Possible Association of the Topside and Bottomside Ionospheric Irregularities over the Midlatitude Ionosphere |
| title_full | Investigation for Possible Association of the Topside and Bottomside Ionospheric Irregularities over the Midlatitude Ionosphere |
| title_fullStr | Investigation for Possible Association of the Topside and Bottomside Ionospheric Irregularities over the Midlatitude Ionosphere |
| title_full_unstemmed | Investigation for Possible Association of the Topside and Bottomside Ionospheric Irregularities over the Midlatitude Ionosphere |
| title_short | Investigation for Possible Association of the Topside and Bottomside Ionospheric Irregularities over the Midlatitude Ionosphere |
| title_sort | investigation for possible association of the topside and bottomside ionospheric irregularities over the midlatitude ionosphere |
| topic | midlatitude ionosphere spread F swarm topside irregularities MSTIDs ROTI |
| url | https://www.mdpi.com/2076-3417/15/2/506 |
| work_keys_str_mv | AT krishnendusekharpaul investigationforpossibleassociationofthetopsideandbottomsideionosphericirregularitiesoverthemidlatitudeionosphere AT harisharalambous investigationforpossibleassociationofthetopsideandbottomsideionosphericirregularitiesoverthemidlatitudeionosphere |