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First observations of the artificial modulation of polar mesospheric winter echoes

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First observations of the artificial modulation of polar mesospheric winter echoes. / Kavanagh, A. J.; Honary, F.; Rietveld, M. T. et al.
In: Geophysical Research Letters, Vol. 33, No. 19, 10.2006, p. L19801.

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Kavanagh AJ, Honary F, Rietveld MT, Senior A. First observations of the artificial modulation of polar mesospheric winter echoes. Geophysical Research Letters. 2006 Oct;33(19):L19801. doi: 10.1029/2006GL027565

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Kavanagh, A. J. ; Honary, F. ; Rietveld, M. T. et al. / First observations of the artificial modulation of polar mesospheric winter echoes. In: Geophysical Research Letters. 2006 ; Vol. 33, No. 19. pp. L19801.

Bibtex

@article{a846d94bfdad4611a576218211d43631,
title = "First observations of the artificial modulation of polar mesospheric winter echoes",
abstract = "We demonstrate for the first time that the application of ionospheric heating can affect the strength of polar mesospheric winter echoes (PMWE) detected by VHF radar. PMWE were observed between 61.8 and 68.5 km altitude and we show that the signal strength can be modulated with 10-second and 1-minute cycles. The structures that cause PMWE are shown to extend over several hundred meters (∼300 m) with echoes existing in two height regimes simultaneously and a descent in altitude indicative of gravity wave effects. The effect on PMWE of ionospheric heating has similar gross features to those for PMSE: a sharp decrease in power when HF heating is switched on followed by a sharp increase when heating is switched off. During the period of active heating there is some recovery in echo power suggestive of dust control of the PMWE.",
keywords = "eiscat, heating, pmwe, mesosphere DCS-publications-id, art-788, DCS-publications-credits, iono-fa, DCS-publications-personnel-id, 9, 5, 51",
author = "Kavanagh, {A. J.} and F. Honary and Rietveld, {M. T.} and A. Senior",
year = "2006",
month = oct,
doi = "10.1029/2006GL027565",
language = "English",
volume = "33",
pages = "L19801",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "John Wiley & Sons, Ltd",
number = "19",

}

RIS

TY - JOUR

T1 - First observations of the artificial modulation of polar mesospheric winter echoes

AU - Kavanagh, A. J.

AU - Honary, F.

AU - Rietveld, M. T.

AU - Senior, A.

PY - 2006/10

Y1 - 2006/10

N2 - We demonstrate for the first time that the application of ionospheric heating can affect the strength of polar mesospheric winter echoes (PMWE) detected by VHF radar. PMWE were observed between 61.8 and 68.5 km altitude and we show that the signal strength can be modulated with 10-second and 1-minute cycles. The structures that cause PMWE are shown to extend over several hundred meters (∼300 m) with echoes existing in two height regimes simultaneously and a descent in altitude indicative of gravity wave effects. The effect on PMWE of ionospheric heating has similar gross features to those for PMSE: a sharp decrease in power when HF heating is switched on followed by a sharp increase when heating is switched off. During the period of active heating there is some recovery in echo power suggestive of dust control of the PMWE.

AB - We demonstrate for the first time that the application of ionospheric heating can affect the strength of polar mesospheric winter echoes (PMWE) detected by VHF radar. PMWE were observed between 61.8 and 68.5 km altitude and we show that the signal strength can be modulated with 10-second and 1-minute cycles. The structures that cause PMWE are shown to extend over several hundred meters (∼300 m) with echoes existing in two height regimes simultaneously and a descent in altitude indicative of gravity wave effects. The effect on PMWE of ionospheric heating has similar gross features to those for PMSE: a sharp decrease in power when HF heating is switched on followed by a sharp increase when heating is switched off. During the period of active heating there is some recovery in echo power suggestive of dust control of the PMWE.

KW - eiscat

KW - heating

KW - pmwe

KW - mesosphere DCS-publications-id

KW - art-788

KW - DCS-publications-credits

KW - iono-fa

KW - DCS-publications-personnel-id

KW - 9

KW - 5

KW - 51

U2 - 10.1029/2006GL027565

DO - 10.1029/2006GL027565

M3 - Journal article

VL - 33

SP - L19801

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 19

ER -