Optimal F Region Electron Density for the PolarDARN Radar Echo Detection Near the Resolute Bay Zenith

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Optimal F Region Electron Density for the PolarDARN Radar Echo Detection Near the Resolute Bay Zenith. / Koustov, A. V.; Ponomarenko, P. V.; Graf, C. J.; Gillies, R. G.; Themens, D. R.

In: Radio Science, Vol. 53, No. 9, 09.2018, p. 1002-1013.

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Koustov, A. V. ; Ponomarenko, P. V. ; Graf, C. J. ; Gillies, R. G. ; Themens, D. R. / Optimal F Region Electron Density for the PolarDARN Radar Echo Detection Near the Resolute Bay Zenith. In: Radio Science. 2018 ; Vol. 53, No. 9. pp. 1002-1013.

Bibtex

@article{1bb8a81c112240cab2648eef4fb46537,
title = "Optimal F Region Electron Density for the PolarDARN Radar Echo Detection Near the Resolute Bay Zenith",
abstract = "Operation of over-the-horizon radars comprising the Super Dual Auroral Radar Network (SuperDARN) relies on strong ionospheric refraction of high-frequency (HF, f = 10–15 MHz) radiowaves such that in order to provide reliable coverage of a given geographic location, the working frequency has to be optimized with respect to the ionospheric conditions. In this work, joint observations of the Rankin Inlet, Inuvik, and Clyde River PolarDARN/SuperDARN HF radars near the Resolute Bay (RB) zenith, where the incoherent scatter radars that monitored the electron density distribution in the ionosphere, are used to assess the F region peak electron density required for HF echo detection near the RB zenith. We show that the echo occurrence rate increases with the electron density up to Ne ≈ (2 − 3) ⋅ 1011 m−3, and above this value, the occurrence rate saturates. Thus, optimum electron density for echo detection exist for every HF radar. The saturation effect is more pronounced for the Clyde River radar whose ranges of echo detection are smallest. The saturation in the dependence is reached at smaller densities for the Inuvik radar whose location is farthest from RB and for lower transmitting frequency of observations for every radar. The data presented suggest that having strong-enough electron density in the ionosphere is the major factor for detection of HF echoes in winter or equinox.",
keywords = "echo occurrence, F region electron density, incoherent scatter radar RISR-C, PolarDARN radars, refraction",
author = "Koustov, {A. V.} and Ponomarenko, {P. V.} and Graf, {C. J.} and Gillies, {R. G.} and Themens, {D. R.}",
year = "2018",
month = sep,
doi = "10.1029/2018RS006566",
language = "English",
volume = "53",
pages = "1002--1013",
journal = "Radio Science",
issn = "0048-6604",
publisher = "American Geophysical Union",
number = "9",

}

RIS

TY - JOUR

T1 - Optimal F Region Electron Density for the PolarDARN Radar Echo Detection Near the Resolute Bay Zenith

AU - Koustov, A. V.

AU - Ponomarenko, P. V.

AU - Graf, C. J.

AU - Gillies, R. G.

AU - Themens, D. R.

PY - 2018/9

Y1 - 2018/9

N2 - Operation of over-the-horizon radars comprising the Super Dual Auroral Radar Network (SuperDARN) relies on strong ionospheric refraction of high-frequency (HF, f = 10–15 MHz) radiowaves such that in order to provide reliable coverage of a given geographic location, the working frequency has to be optimized with respect to the ionospheric conditions. In this work, joint observations of the Rankin Inlet, Inuvik, and Clyde River PolarDARN/SuperDARN HF radars near the Resolute Bay (RB) zenith, where the incoherent scatter radars that monitored the electron density distribution in the ionosphere, are used to assess the F region peak electron density required for HF echo detection near the RB zenith. We show that the echo occurrence rate increases with the electron density up to Ne ≈ (2 − 3) ⋅ 1011 m−3, and above this value, the occurrence rate saturates. Thus, optimum electron density for echo detection exist for every HF radar. The saturation effect is more pronounced for the Clyde River radar whose ranges of echo detection are smallest. The saturation in the dependence is reached at smaller densities for the Inuvik radar whose location is farthest from RB and for lower transmitting frequency of observations for every radar. The data presented suggest that having strong-enough electron density in the ionosphere is the major factor for detection of HF echoes in winter or equinox.

AB - Operation of over-the-horizon radars comprising the Super Dual Auroral Radar Network (SuperDARN) relies on strong ionospheric refraction of high-frequency (HF, f = 10–15 MHz) radiowaves such that in order to provide reliable coverage of a given geographic location, the working frequency has to be optimized with respect to the ionospheric conditions. In this work, joint observations of the Rankin Inlet, Inuvik, and Clyde River PolarDARN/SuperDARN HF radars near the Resolute Bay (RB) zenith, where the incoherent scatter radars that monitored the electron density distribution in the ionosphere, are used to assess the F region peak electron density required for HF echo detection near the RB zenith. We show that the echo occurrence rate increases with the electron density up to Ne ≈ (2 − 3) ⋅ 1011 m−3, and above this value, the occurrence rate saturates. Thus, optimum electron density for echo detection exist for every HF radar. The saturation effect is more pronounced for the Clyde River radar whose ranges of echo detection are smallest. The saturation in the dependence is reached at smaller densities for the Inuvik radar whose location is farthest from RB and for lower transmitting frequency of observations for every radar. The data presented suggest that having strong-enough electron density in the ionosphere is the major factor for detection of HF echoes in winter or equinox.

KW - echo occurrence

KW - F region electron density

KW - incoherent scatter radar RISR-C

KW - PolarDARN radars

KW - refraction

UR - http://www.scopus.com/inward/record.url?scp=85052799073&partnerID=8YFLogxK

U2 - 10.1029/2018RS006566

DO - 10.1029/2018RS006566

M3 - Article

AN - SCOPUS:85052799073

VL - 53

SP - 1002

EP - 1013

JO - Radio Science

JF - Radio Science

SN - 0048-6604

IS - 9

ER -