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 › peer-review

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

All Science Journal Classification (ASJC) codes

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

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title = "Auroral zone plasma waves detected at polar: PCBL waves",

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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TY - JOUR

T1 - Auroral zone plasma waves detected at polar

T2 - PCBL waves

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.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - 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.

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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