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- Allen, R. C.Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA. (author)
A statistical study of EMIC waves observed by Cluster : 1. Wave properties
- Article/chapterEnglish2015
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- 2015
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- LIBRIS-ID:oai:DiVA.org:uu-263042
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-263042URI
- https://doi.org/10.1002/2015JA021333DOI
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- Language:English
- Summary in:English
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- Electromagnetic ion cyclotron (EMIC) waves are an important mechanism for particle energization and losses inside the magnetosphere. In order to better understand the effects of these waves on particle dynamics, detailed information about the occurrence rate, wave power, ellipticity, normal angle, energy propagation angle distributions, and local plasma parameters are required. Previous statistical studies have used in situ observations to investigate the distribution of these parameters in the magnetic local time versus L-shell (MLT-L) frame within a limited magnetic latitude (MLAT) range. In this study, we present a statistical analysis of EMIC wave properties using 10years (2001-2010) of data from Cluster, totaling 25,431min of wave activity. Due to the polar orbit of Cluster, we are able to investigate EMIC waves at all MLATs and MLTs. This allows us to further investigate the MLAT dependence of various wave properties inside different MLT sectors and further explore the effects of Shabansky orbits on EMIC wave generation and propagation. The statistical analysis is presented in two papers. This paper focuses on the wave occurrence distribution as well as the distribution of wave properties. The companion paper focuses on local plasma parameters during wave observations as well as wave generation proxies.
Subject headings and genre
- NATURVETENSKAP Fysik Fusion, plasma och rymdfysik hsv//swe
- NATURAL SCIENCES Physical Sciences Fusion, Plasma and Space Physics hsv//eng
- magnetosphere
- EMIC waves
- Cluster
- Shabansky orbits
Added entries (persons, corporate bodies, meetings, titles ...)
- Zhang, J. -C (author)
- Kistler, L. M.Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA. (author)
- Spence, H. E.Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA. (author)
- Lin, R. -L (author)
- Klecker, B.Max Planck Inst Extraterr Phys, D-85748 Garching, Germany. (author)
- Dunlop, M. W.Rutherford Appleton Lab, Div Space Sci, Harwell, Oxon, England. (author)
- André, MatsUppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)maand125 (author)
- Jordanova, V. K.Los Alamos Natl Lab, Los Alamos, NM USA. (author)
- Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.Max Planck Inst Extraterr Phys, D-85748 Garching, Germany. (creator_code:org_t)
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- In:Journal of Geophysical Research - Space Physics120:7, s. 5574-55922169-93802169-9402
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