Global observations of substorm injection region evolution: 27 August 2001
2009 (English)In: Annales Geophysicae, ISSN 0992-7689, E-ISSN 1432-0576, Vol. 27, no 5, 2019-2025 p.Article in journal (Refereed) Published
We present riometer and in situ observations of a substorm electron injection on 27 August 2001. The event is seen at more than 20 separate locations (including ground stations and 6 satellites: Cluster, Polar, Chandra, and 3 Los Alamos National Laboratory (LANL) spacecraft). The injection is observed to be dispersionless at 12 of these locations. Combining these observations with information from the GOES-8 geosynchronous satellite we argue that the injection initiated near geosynchronous orbit and expanded pole-ward (tailward) and equatorward (earthward) afterward. Further, the injection began several minutes after the reconnection identified in the Cluster data, thus providing concrete evidence that, in at least some events, near-Earth reconnection has little if any ionospheric signature.
Place, publisher, year, edition, pages
2009. Vol. 27, no 5, 2019-2025 p.
Magnetospheric physics, Energetic particles, precipitating, Magnetotail, Storms and substorms
IdentifiersURN: urn:nbn:se:uu:diva-148330ISI: 000266406300020OAI: oai:DiVA.org:uu-148330DiVA: diva2:402105