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Postmidnight chorus: A substorm phenomenon
Abstract
The ELF emissions were detected in the midnight sector of the magnetosphere in conjunction with magnetospheric substorms. The emissions were observed at local midnight and early morning hours and are accordingly called 'post-midnight chorus.' The characteristics of these emissions such as their frequency time structure, emission frequency with respect to the local equatorial electron gyrofrequency, intensity-time variation, and the average intensity were investigated. The occurrence of the chorus in the nightside magnetosphere was investigated as a function of local time, L shell, magnetic latitude, and substorm activity, and the results of this analysis are presented. Specific features of postmidnight chorus are discussed in the context of possible wave-particle interactions occurring during magnetospheric substorms.
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Citations
Cited by
Summers, D., Thorne, R. M., & Xiao, F. (1998) · Journal of Geophysical Research: Space Physics · doi:10.1029/98ja01740 · Cited by 874
Radiation belt dynamics: The importance of wave‐particle interactions
Thorne, R. M. (2010) · Geophysical Research Letters · doi:10.1029/2010gl044990 · Cited by 788
Wave acceleration of electrons in the Van Allen radiation belts
Horne, R. B., Thorne, R. M., Shprits, Y. Y., Meredith, N. P., Glauert, S. A., Smith, A. J., Kanekal, S. G., Baker, D. N., Engebretson, M. J., Posch, J. L., et al. (2005) · Nature · doi:10.1038/nature03939 · Cited by 622
Summers, D., Ni, B., & Meredith, N. P. (2007) · Journal of Geophysical Research: Space Physics · doi:10.1029/2006ja011993 · Cited by 560
Shprits, Y. Y., Subbotin, D. A., Meredith, N. P., & Elkington, S. R. (2008) · Journal of Atmospheric and Solar-Terrestrial Physics · doi:10.1016/j.jastp.2008.06.014 · Cited by 455
Metadata
- Authors
- Tsurutani, B. T., & Smith, E. J.
- Venue
- Journal of Geophysical Research
- Publisher
- American Geophysical Union (AGU)
- Published
- 1974-01-01
- Volume
- 79
- Issue
- 1
- Pages
- 118-127
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W2118538857
- Cited by
- 683
- References
- 0
- FWCI
- 12.84
- Type
- journal article
- Language
- en
- Open access
- closed
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- Tsurutani, B. T., & Smith, E. J. (1974). Postmidnight chorus: A substorm phenomenon. Journal of Geophysical Research. https://doi.org/10.1029/ja079i001p00118
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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