Home > Research > Publications & Outputs > EISCAT observations of pump-enhanced plasma tem...
View graph of relations

EISCAT observations of pump-enhanced plasma temperature and optical emission excitation rate as a function of power flux

Research output: Contribution to journalJournal articlepeer-review

Published

Standard

EISCAT observations of pump-enhanced plasma temperature and optical emission excitation rate as a function of power flux. / Bryers, Carl; Kosch, Michael; Senior, Andrew; Rietveld, M.T.; Yeoman, T. K.

In: Journal of Geophysical Research, Vol. 117, A09301, 06.09.2012.

Research output: Contribution to journalJournal articlepeer-review

Harvard

APA

Vancouver

Author

Bryers, Carl ; Kosch, Michael ; Senior, Andrew ; Rietveld, M.T. ; Yeoman, T. K. / EISCAT observations of pump-enhanced plasma temperature and optical emission excitation rate as a function of power flux. In: Journal of Geophysical Research. 2012 ; Vol. 117.

Bibtex

@article{af5ed75a71f14c94a0d100d1c9070a01,
title = "EISCAT observations of pump-enhanced plasma temperature and optical emission excitation rate as a function of power flux",
abstract = "We analyze optical emissions and enhanced electron temperatures induced by high power HF radio waves as a function of power flux using the EISCAT heater with a range of effective radiated powers. The UHF radar was used to measure the electron temperatures and densities. The Digital All Sky Imager was used to record the 630.0 nm optical emission intensities. We quantify the HF flux loss due to self-absorption in the D-region (typically 3–11 dB) and refraction in the F-region to determine the flux which reaches the upper-hybrid resonance height. We find a quasi-linear relationship between the HF flux and both the temperature enhancement and the optical emission excitation rate with a threshold at ∼37.5 μWm−2. On average ∼70% of the HF flux at the upper-hybrid resonance height goes in to heating the electrons for fluxes above the threshold compared to ∼40% for fluxes below the threshold.",
author = "Carl Bryers and Michael Kosch and Andrew Senior and M.T. Rietveld and Yeoman, {T. K.}",
year = "2012",
month = sep,
day = "6",
doi = "10.1029/2012JA017897",
language = "English",
volume = "117",
journal = "Journal of Geophysical Research",
issn = "0148-0227",
publisher = "American Geophysical Union",

}

RIS

TY - JOUR

T1 - EISCAT observations of pump-enhanced plasma temperature and optical emission excitation rate as a function of power flux

AU - Bryers, Carl

AU - Kosch, Michael

AU - Senior, Andrew

AU - Rietveld, M.T.

AU - Yeoman, T. K.

PY - 2012/9/6

Y1 - 2012/9/6

N2 - We analyze optical emissions and enhanced electron temperatures induced by high power HF radio waves as a function of power flux using the EISCAT heater with a range of effective radiated powers. The UHF radar was used to measure the electron temperatures and densities. The Digital All Sky Imager was used to record the 630.0 nm optical emission intensities. We quantify the HF flux loss due to self-absorption in the D-region (typically 3–11 dB) and refraction in the F-region to determine the flux which reaches the upper-hybrid resonance height. We find a quasi-linear relationship between the HF flux and both the temperature enhancement and the optical emission excitation rate with a threshold at ∼37.5 μWm−2. On average ∼70% of the HF flux at the upper-hybrid resonance height goes in to heating the electrons for fluxes above the threshold compared to ∼40% for fluxes below the threshold.

AB - We analyze optical emissions and enhanced electron temperatures induced by high power HF radio waves as a function of power flux using the EISCAT heater with a range of effective radiated powers. The UHF radar was used to measure the electron temperatures and densities. The Digital All Sky Imager was used to record the 630.0 nm optical emission intensities. We quantify the HF flux loss due to self-absorption in the D-region (typically 3–11 dB) and refraction in the F-region to determine the flux which reaches the upper-hybrid resonance height. We find a quasi-linear relationship between the HF flux and both the temperature enhancement and the optical emission excitation rate with a threshold at ∼37.5 μWm−2. On average ∼70% of the HF flux at the upper-hybrid resonance height goes in to heating the electrons for fluxes above the threshold compared to ∼40% for fluxes below the threshold.

UR - http://www.scopus.com/inward/record.url?scp=84866339694&partnerID=8YFLogxK

U2 - 10.1029/2012JA017897

DO - 10.1029/2012JA017897

M3 - Journal article

AN - SCOPUS:84866339694

VL - 117

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

SN - 0148-0227

M1 - A09301

ER -