Dynamics of mid-latitude sporadic-E and its impact on HF propagation in the North American sector

Simple item page
dc.contributor.authorKunduri, Bharat Simha Reddyen
dc.contributor.authorErickson, Philipen
dc.contributor.authorBaker, Josephen
dc.contributor.authorRuohoniemi, Johnen
dc.date.accessioned2024-02-29T12:51:54Zen
dc.date.available2024-02-29T12:51:54Zen
dc.date.issued2023-09-16en
dc.description.abstractSporadic-E (Es) are thin layers of enhanced ionization observed in the E-region, typically between 95 and 120 km altitude. Es plays an important role in controlling the dynamics of the upper atmosphere and it is necessary to understand the geophysical factors influencing Es from both the scientific and operational perspectives. While the wind-shear theory is widely accepted as an important mechanism responsible for the generation of Es, there are still gaps in the current state of our knowledge. For example, we are yet to determine precisely how changes in the dynamics of horizontal winds impact the formation, altitude, and destruction of Es layers. In this study, we report results from a coordinated experimental campaign between the Millstone Hill Incoherent Scatter Radar, the SuperDARN radar at Blackstone, and the Millstone Hill Digisonde to monitor the dynamics of mid-latitude Es layers. We report observations during a 15-hr window between 13 UT on 3 June 2022 and 4 UT on 4 June 2022, which was marked by the presence of a strong Es layer. We find that the height of the Es layer is collocated with strong vertical shears in atmospheric tides and that the zonal wind shears play a more important role than meridional wind shears in generating Es, especially at lower altitudes. Finally, we show that in the presence of Es, SuperDARN ground backscatter moves to closer ranges, and the height and critical frequency of the Es layer have a significant impact on the location and intensity of HF ground scatter.en
dc.description.notesYes, abstract only (Peer reviewed?)en
dc.description.versionPublished versionen
dc.format.extent14 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1029/2023JA031455en
dc.identifier.eissn2169-9402en
dc.identifier.issn2169-9380en
dc.identifier.issue9en
dc.identifier.orcidKunduri, Bharat Simha Reddy [0000-0002-7406-7641]en
dc.identifier.orcidRuohoniemi, John [0000-0002-2747-7066]en
dc.identifier.urihttps://hdl.handle.net/10919/118208en
dc.identifier.volume128en
dc.language.isoenen
dc.publisherAmerican Geophysical Unionen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectsporadic-Een
dc.subjectwind shearsen
dc.subjectatmospheric tidesen
dc.subjectMilstone hill ISRen
dc.subjectdigisondeen
dc.subjectSuperDARNen
dc.titleDynamics of mid-latitude sporadic-E and its impact on HF propagation in the North American sectoren
dc.title.serialJournal of Geophysical Research-Space Physicsen
dc.typeConference proceedingen
dc.type.dcmitypeTexten
dc.type.otherOral Presentationen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Electrical and Computer Engineeringen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
JGR Space Physics - 2023 - Kunduri - Dynamics of Mid‐Latitude Sporadic‐E and Its Impact on HF Propagation in the North.pdf
Size:
2.11 MB
Format:
Adobe Portable Document Format
Description:
Published version
Download
License bundle
Now showing 1 - 1 of 1
Name:
license.txt
Size:
1.5 KB
Format:
Plain Text
Description:
Download

Collections

All Faculty Deposits
Scholarly Works, Electrical and Computer Engineering