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The May 2–3, 1986 CDAW‐9C interval: A sawtooth event
Author(s) -
Henderson M. G.
Publication year - 2004
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2004gl019941
Subject(s) - sawtooth wave , substorm , geosynchronous orbit , physics , interval (graph theory) , geophysics , event (particle physics) , magnetic reconnection , astrophysics , magnetic field , magnetosphere , computer science , mathematics , astronomy , quantum mechanics , satellite , combinatorics , computer vision
We re‐examine the CDAW‐9C interval and show that it was a sawtooth event ‐ and therefore that sawtooth events have been studied as substorms in the past. We also show that tail‐like stretching of the magnetic field can occur well inside of geosynchronous orbit and we present evidence that substorm‐associated tail reconnection can occur inside of −11 R E . We conclude that a major difference between sawtooth and non‐sawtooth substorms is that the sawtooth variety appear to represent a ‘mode’ of behavior in which substorm activity is brought anomalously close to the Earth for extended periods of time.