Auroral zone plasma waves detected at polar: PCBL waves

B. T. Tsurutani; J. K. Arballo; C. Galvan; L. D. Zhang; G. S. Lakhina; Tohru Hada; J. S. Pickett; D. A. Gurnett

doi:10.1016/S0273-1177(01)00483-5

Auroral zone plasma waves detected at polar: PCBL waves

B. T. Tsurutani, J. K. Arballo, C. Galvan, L. D. Zhang, G. S. Lakhina, Tohru Hada, J. S. Pickett, D. A. Gurnett

Research output: Contribution to journal › Article

Abstract

Polar Cap Boundary Layer waves are ELF/VLF electric and magnetic waves detected on field lines adjacent to the polar cap, thus their name. Waves are present at this location 96% of the time. The wave latitude-local time distribution is shown to be the same as that of the auroral oval. The most intense waves are detected coincident with the strongest magnetic field gradients (field-aligned currents). Specific frequency bands of whistler mode-waves are identified: ~200 Hz, 1-2 kHz and ~5 kHz. Two types of intense electric waves are present: Solitary bipolar pulses (electron holes) and ~kHz electric turbulence. The PCBL waves are most likely a consequence of auroral zone field-aligned current instabilities. The currents have in turn been ascribed to be due to magnetospheric convection driven by the solar wind.

Original language	English
Pages (from-to)	1655-1659
Number of pages	5
Journal	Advances in Space Research
Volume	28
Issue number	11
DOIs	https://doi.org/10.1016/S0273-1177(01)00483-5
Publication status	Published - Jan 1 2001

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All Science Journal Classification (ASJC) codes

Aerospace Engineering
Astronomy and Astrophysics
Geophysics
Atmospheric Science
Space and Planetary Science
Earth and Planetary Sciences(all)

Cite this

Tsurutani, B. T., Arballo, J. K., Galvan, C., Zhang, L. D., Lakhina, G. S., Hada, T., ... Gurnett, D. A. (2001). Auroral zone plasma waves detected at polar: PCBL waves. Advances in Space Research, 28(11), 1655-1659. https://doi.org/10.1016/S0273-1177(01)00483-5

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abstract = "Polar Cap Boundary Layer waves are ELF/VLF electric and magnetic waves detected on field lines adjacent to the polar cap, thus their name. Waves are present at this location 96{\%} of the time. The wave latitude-local time distribution is shown to be the same as that of the auroral oval. The most intense waves are detected coincident with the strongest magnetic field gradients (field-aligned currents). Specific frequency bands of whistler mode-waves are identified: ~200 Hz, 1-2 kHz and ~5 kHz. Two types of intense electric waves are present: Solitary bipolar pulses (electron holes) and ~kHz electric turbulence. The PCBL waves are most likely a consequence of auroral zone field-aligned current instabilities. The currents have in turn been ascribed to be due to magnetospheric convection driven by the solar wind.",

author = "Tsurutani, {B. T.} and Arballo, {J. K.} and C. Galvan and Zhang, {L. D.} and Lakhina, {G. S.} and Tohru Hada and Pickett, {J. S.} and Gurnett, {D. A.}",

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AU - Tsurutani, B. T.

AU - Arballo, J. K.

AU - Galvan, C.

AU - Zhang, L. D.

AU - Lakhina, G. S.

AU - Hada, Tohru

AU - Pickett, J. S.

AU - Gurnett, D. A.

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AB - Polar Cap Boundary Layer waves are ELF/VLF electric and magnetic waves detected on field lines adjacent to the polar cap, thus their name. Waves are present at this location 96% of the time. The wave latitude-local time distribution is shown to be the same as that of the auroral oval. The most intense waves are detected coincident with the strongest magnetic field gradients (field-aligned currents). Specific frequency bands of whistler mode-waves are identified: ~200 Hz, 1-2 kHz and ~5 kHz. Two types of intense electric waves are present: Solitary bipolar pulses (electron holes) and ~kHz electric turbulence. The PCBL waves are most likely a consequence of auroral zone field-aligned current instabilities. The currents have in turn been ascribed to be due to magnetospheric convection driven by the solar wind.

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10.1016/S0273-1177(01)00483-5