Journal article
Kinetic Alfvén waves and particle response associated with a shock-induced, global ULF perturbation of the terrestrial magnetosphere
Geophysical research letters, Vol.42(21), pp.9203-9212
11/16/2015
DOI: 10.1002/2015GL065935
Abstract
On 2 October 2013, the arrival of an interplanetary shock compressed the Earth's magnetosphere and triggered a global ULF (ultra low frequency) oscillation. The Van Allen Probe B spacecraft observed this large-amplitude ULF wave in situ with both magnetic and electric field data. Broadband waves up to approximately 100 Hz were observed in conjunction with, and modulated by, this ULF wave. Detailed analysis of fields and particle data reveals that these broadband waves are Doppler-shifted kinetic Alfvén waves. This event suggests that magnetospheric compression by interplanetary shocks can induce abrupt generation of kinetic Alfvén waves over large portions of the inner magnetosphere, potentially driving previously unconsidered wave-particle interactions throughout the inner magnetosphere during the initial response of the magnetosphere to shock impacts.
Details
- Title: Subtitle
- Kinetic Alfvén waves and particle response associated with a shock-induced, global ULF perturbation of the terrestrial magnetosphere
- Creators
- David M Malaspina - University of Colorado BoulderSeth G Claudepierre - The Aerospace CorporationKazue Takahashi - Johns Hopkins University Applied Physics LaboratoryAllison N Jaynes - University of Colorado BoulderScot R Elkington - University of Colorado BoulderRobert E Ergun - University of Colorado BoulderJohn R Wygant - University of MinnesotaGeoff D Reeves - Los Alamos National LaboratoryCraig A Kletzing - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Geophysical research letters, Vol.42(21), pp.9203-9212
- Publisher
- Blackwell Publishing Ltd
- DOI
- 10.1002/2015GL065935
- ISSN
- 0094-8276
- eISSN
- 1944-8007
- Number of pages
- 10
- Grant note
- DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: NAS5-01072; DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: NNX14AB97K; DOI: 10.13039/100007880, name: Johns Hopkins University, award: 967399
- Language
- English
- Date published
- 11/16/2015
- Academic Unit
- University College Courses; Physics and Astronomy
- Record Identifier
- 9984199787202771
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