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An experimental study of hiss-triggered chorus emissions at low latitude
Earth, Planets and Space volume 52, pages 37–40 (2000)
Abstract
Hiss-triggered chorus emissions recorded at low-latitude ground station Gulmarg (geomag. lat., 24°26N; geomag. long., 147°09E, L = 1.28) on March 8, 1986 are reported. From the detailed spectral analysis of these emissions, it is found that the chorus is hiss-triggered and each chorus element has tendency to originate from the hiss band. Based on the theory of Helliwell, and previous satellite VLF data, a possible generation mechanism of low-latitude hiss-triggered chorus emissions is proposed. An attempt has been made to find out the chorus source location and the length of resonance region from which the various parameters associated with generation mechanism are determined.
References
Angerami, J. J. and D. L. Carpenter, Whistler studies of the plasmapause in the magnetosphere, 2, electron density and total tube content near the knee in magnetospheric ionization, J. Geophys. Res., 71, 711–725, 1966.
Bespalov, P. A. and V. V. Trakhtengerts, Non stationary particles distribution in the magnetosphere and generation of periodic emissions in the VLF and SPP range, Geomagn. Aeronom., 14, 266–271, 1974.
Burtis, W. J. and R. A. Helliwell, Banded chorus-A new type of VLF radiation observed in the magnetosphere by OGO-1 and OGO-3, J. Geophys. Res., 74, 3002–3010, 1969.
Burtis, W. J. and R. A. Helliwell, Magnetospheric chorus; Occurrence patterns and normalized frequency, Planet. Space Sci., 24, 1007–1024, 1976.
Burton, R. K. and R. E. Holtzer, The origin and propagation of chorus in the outer magnetosphere, J. Geophys. Res., 79, 1014–1023, 1974.
Carpenter, D. L., Whistler evidence of a knee in the magnetospheric ionization density profile, J. Geophys. Res., 68, 1675–1682, 1963.
Cornilleau-Wehrlin, N., R. Gendrin, F. Lefeuvre, M. Parrot, R. Grard, and D. Jones, VLF waves observed onboard GEOS-1, Space Sci. Rev., 22, 371–382, 1978.
Curtis, S. A., A theory for chorus generation by energetic electrons during substorms, J. Geophys.Res., 83, 3841–3848, 1978.
Goldstein, B. E. and B. T. Tsurutani, Wave normal direction of chorus near equatorial source region, J. Geophys. Res., 89, 2789–2805, 1984.
Hattori, K. and M. Hayakawa, Consideration of dynamic spectra and direction finding results of hiss-triggered chorus emissions, Proc. NIPR Symp. Upper Atmos. Phys., 7, 40–52, 1994.
Hayakawa, M., Y. Yamanaka, M. Parrot, and F. Lefeuvre, The wave normals of magnetospheric chorus emissions observed onboard GEOS-2, J. Geophys. Res., 89, 2811–2821, 1984.
Hayakawa, M., K. Hattori, S. Shimakura, M. Parrot, and F. Lefeuvre, Direction finding of chorus emissions in the outer magnetosphere and their generation and propagation, Planet. Space Sci., 38, 135–141, 1990.
Helliwell, R. A., Whistlers and Related Ionospheric Phenomena, 349 pp., Stanford Univ. Press, Stanford, U.S.A, 1965.
Helliwell, R. A., A theory of discrete VLF emissions from the magnetosphere, J. Geophys.Res., 72, 4273–4790, 1967.
Helliwell, R. A., D. L. Carpenter, U. S. Inan, and J. P. Katsufrakis, Generation of band-limited VLF noise using the Siple transmitter: A model for magnetospheric hiss, J. Geophys. Res., 91, 4381–4392, 1986.
Koons, H. C., The role of hiss in magnetospheric chorus emissions, J. Geophys. Res., 86, 6745–6754, 1981.
Luette, J. P., C. G. Park, and R. A. Helliwell, The control of magnetosphere by power line radiation, J. Geophys. Res., 84, 2657–2660, 1979.
Nunn, D., A theoretical investigation of banded chorus, J. Plasma Phys., 11, 189–212, 1974.
Sazhin, S. S., Natural Radio Emissions in the Earth’s Magnetosphere, Nauka, Moskow, 1982.
Sazhin, S. S. and M. Hayakawa, Magnetospheric chorus emissions: A review, Planet. Space Sci., 40, 681–697, 1992.
Smirnova, N. A., Yu. P. Novikov, N. G. Kleimenova, and E. E. Titova, Some spectral peculiarities of VLF emissions registered on the earth surface near the plasmapause projection, J. Atmos. Terr.Phys., 38, 1217, 1976.
Smirnova, N. A., Fine structure of the ground observed VLF chorus as an indicator of the wave particle interaction process in the magnetosphere, Planet. Space Sci., 32, 425–438, 1984.
Tsurutani, B. T. and E. J. Smith, Postmidnight chorus: A substorm phenomenon, J. Geophys. Res., 79, 118–127, 1974.
Tsurutani, B. T. and E. J. Smith, Two types of magnetospheric ELF chorus and their substorm dependences, J. Geophys. Res., 82, 51120, 1977.
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Singh, R., Patel, R.P., Singh, R.P. et al. An experimental study of hiss-triggered chorus emissions at low latitude. Earth Planet Sp 52, 37–40 (2000). https://doi.org/10.1186/BF03351611
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DOI: https://doi.org/10.1186/BF03351611