Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Transpolar Arcs Are Not Always Cusp-Aligned: Evidence of HiLDA-Aligned Arcs
KTH, Skolan för elektroteknik och datavetenskap (EECS), Elektroteknik, Rymd- och plasmafysik.ORCID-id: 0000-0001-6252-262X
KTH, Skolan för elektroteknik och datavetenskap (EECS), Elektroteknik, Rymd- och plasmafysik.ORCID-id: 0000-0002-0349-0645
Space Physics and Astronomy, University of Oulu, Oulu, Finland.
KTH, Skolan för elektroteknik och datavetenskap (EECS), Elektroteknik, Rymd- och plasmafysik.ORCID-id: 0000-0003-0554-4691
Vise andre og tillknytning
2024 (engelsk)Inngår i: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 51, nr 21, artikkel-id e2024GL111246Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Transpolar arcs (TPAs) are often cusp-aligned. Especially when multiple TPAs appear simultaneously, they join at the auroral signature of the cusp. Here we investigate the dayside connection point of TPAs using Defense Meteorological Satellite Program measurements and identify three cases where the tip of the TPA ends in a localized brightening. One is a typical cusp spot with a TPA attached. The cusp appears just poleward of the oval with a near circular shape. In the second case, multiple cusp spots are observed over a 3 MLT wide region, each connected to a TPA. In the third case, the brightening at the tip of a TPA is identified as high-latitude dayside aurora (HiLDA). Cusp aurora appears between the HiLDA and the duskside oval. Plasma flows and particle characteristics indicate a lobe origin of the HiLDA. Our results indicate a more complicated connection between TPAs and dayside aurora than previously anticipated.

sted, utgiver, år, opplag, sider
American Geophysical Union (AGU) , 2024. Vol. 51, nr 21, artikkel-id e2024GL111246
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-356685DOI: 10.1029/2024GL111246ISI: 001368647400001Scopus ID: 2-s2.0-85208603961OAI: oai:DiVA.org:kth-356685DiVA, id: diva2:1914856
Merknad

QC 20241213

Tilgjengelig fra: 2024-11-20 Laget: 2024-11-20 Sist oppdatert: 2024-12-13bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Person

Katrougkalou, Maria ChloiKullen, AnitaRoth, Lorenz

Søk i DiVA

Av forfatter/redaktør
Katrougkalou, Maria ChloiKullen, AnitaRoth, Lorenz
Av organisasjonen
I samme tidsskrift
Geophysical Research Letters

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 119 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf