Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322001415> ?p ?o ?g. }
Showing items 1 to 82 of
82
with 100 items per page.
- W4322001415 abstract "The aurora is a visible manifestation of Earth’s coupling to near-Earth space. The emitted light is produced by charged particles that precipitate into the upper atmosphere. These particles are usually located on closed magnetic field lines that connect directly between the northern and southern hemisphere. As a result, Earth’s aurora often appears in an oval shape surrounding the magnetic pole. Inside the oval, at high magnetic latitudes, is a region with open magnetic field lines that extend into the solar wind. This region of open magnetic flux is the polar cap and is a consequence of the Dungey cycle: Reconnection between the solar wind magnetic field and closed terrestrial field lines at the dayside magnetopause produces open field lines which are transported to the nightside where they are again closed by reconnection. A fundamental property of the magnetosphere-ionosphere system is that changes in the amount of open magnetic flux is equal to the net difference between the dayside and nightside reconnection rates. That is, the polar cap expands when dayside reconnection dominates and contracts when nightside reconnection dominates. This is known as the expanding/contracting polar cap paradigm, and has been studied extensively in the last few decades. The expansion and contraction of the aurora itself has received less attention. In this work, we use global auroral images to study the spatiotemporal evolution of the auroral oval. We investigate how the solar wind, open flux and auroral flux covary. Furthermore, we attempt to determine how well a pure fluid description of the auroral zone can explain the observed evolution." @default.
- W4322001415 created "2023-02-26" @default.
- W4322001415 creator A5002815166 @default.
- W4322001415 creator A5012068648 @default.
- W4322001415 creator A5015034646 @default.
- W4322001415 creator A5053297156 @default.
- W4322001415 creator A5062938531 @default.
- W4322001415 creator A5071926822 @default.
- W4322001415 creator A5076851651 @default.
- W4322001415 creator A5091443308 @default.
- W4322001415 date "2023-05-15" @default.
- W4322001415 modified "2023-10-18" @default.
- W4322001415 title "Expansion and Contraction of the Auroral Oval Area" @default.
- W4322001415 doi "https://doi.org/10.5194/egusphere-egu23-11679" @default.
- W4322001415 hasPublicationYear "2023" @default.
- W4322001415 type Work @default.
- W4322001415 citedByCount "0" @default.
- W4322001415 crossrefType "posted-content" @default.
- W4322001415 hasAuthorship W4322001415A5002815166 @default.
- W4322001415 hasAuthorship W4322001415A5012068648 @default.
- W4322001415 hasAuthorship W4322001415A5015034646 @default.
- W4322001415 hasAuthorship W4322001415A5053297156 @default.
- W4322001415 hasAuthorship W4322001415A5062938531 @default.
- W4322001415 hasAuthorship W4322001415A5071926822 @default.
- W4322001415 hasAuthorship W4322001415A5076851651 @default.
- W4322001415 hasAuthorship W4322001415A5091443308 @default.
- W4322001415 hasConcept C102988692 @default.
- W4322001415 hasConcept C108411613 @default.
- W4322001415 hasConcept C115260700 @default.
- W4322001415 hasConcept C116403925 @default.
- W4322001415 hasConcept C121332964 @default.
- W4322001415 hasConcept C1276947 @default.
- W4322001415 hasConcept C130443932 @default.
- W4322001415 hasConcept C140161248 @default.
- W4322001415 hasConcept C151325931 @default.
- W4322001415 hasConcept C157479481 @default.
- W4322001415 hasConcept C191897082 @default.
- W4322001415 hasConcept C192562407 @default.
- W4322001415 hasConcept C199635899 @default.
- W4322001415 hasConcept C205995761 @default.
- W4322001415 hasConcept C29705727 @default.
- W4322001415 hasConcept C36819163 @default.
- W4322001415 hasConcept C62520636 @default.
- W4322001415 hasConcept C68709404 @default.
- W4322001415 hasConcept C8058405 @default.
- W4322001415 hasConcept C91586092 @default.
- W4322001415 hasConceptScore W4322001415C102988692 @default.
- W4322001415 hasConceptScore W4322001415C108411613 @default.
- W4322001415 hasConceptScore W4322001415C115260700 @default.
- W4322001415 hasConceptScore W4322001415C116403925 @default.
- W4322001415 hasConceptScore W4322001415C121332964 @default.
- W4322001415 hasConceptScore W4322001415C1276947 @default.
- W4322001415 hasConceptScore W4322001415C130443932 @default.
- W4322001415 hasConceptScore W4322001415C140161248 @default.
- W4322001415 hasConceptScore W4322001415C151325931 @default.
- W4322001415 hasConceptScore W4322001415C157479481 @default.
- W4322001415 hasConceptScore W4322001415C191897082 @default.
- W4322001415 hasConceptScore W4322001415C192562407 @default.
- W4322001415 hasConceptScore W4322001415C199635899 @default.
- W4322001415 hasConceptScore W4322001415C205995761 @default.
- W4322001415 hasConceptScore W4322001415C29705727 @default.
- W4322001415 hasConceptScore W4322001415C36819163 @default.
- W4322001415 hasConceptScore W4322001415C62520636 @default.
- W4322001415 hasConceptScore W4322001415C68709404 @default.
- W4322001415 hasConceptScore W4322001415C8058405 @default.
- W4322001415 hasConceptScore W4322001415C91586092 @default.
- W4322001415 hasLocation W43220014151 @default.
- W4322001415 hasOpenAccess W4322001415 @default.
- W4322001415 hasPrimaryLocation W43220014151 @default.
- W4322001415 hasRelatedWork W2014555528 @default.
- W4322001415 hasRelatedWork W2016065859 @default.
- W4322001415 hasRelatedWork W2024127102 @default.
- W4322001415 hasRelatedWork W2058810353 @default.
- W4322001415 hasRelatedWork W2128614039 @default.
- W4322001415 hasRelatedWork W2163375339 @default.
- W4322001415 hasRelatedWork W2345459539 @default.
- W4322001415 hasRelatedWork W2556078709 @default.
- W4322001415 hasRelatedWork W3170100976 @default.
- W4322001415 hasRelatedWork W4322001415 @default.
- W4322001415 isParatext "false" @default.
- W4322001415 isRetracted "false" @default.
- W4322001415 workType "article" @default.