Dusty space plasma diagnosis using temporal behavior of polar mesospheric summer echoes during active modification

Mahmoudian, Alireza and Scales, Wayne and Kosch, Michael and Senior, Andrew and Rietveld, Mike (2011) Dusty space plasma diagnosis using temporal behavior of polar mesospheric summer echoes during active modification. Annales Geophysicae, 29 (11). pp. 2169-2179. ISSN 0992-7689

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The objective of this paper is to study the effect of different plasma and dust parameters on Polar Mesospheric Summer Echoes (PMSE) temporal behavior after turn-on and turn-off of radio wave heating and to use these responses to diagnose the properties of the dust layer. The threshold radar frequency and dust parameters for the enhancement or suppression of radar echoes after radio wave heating turn-on are investigated for measured mesospheric plasma parameters. The effect of parameters such as the electron temperature enhancement during heating, dust density, dust charge polarity, ion-neutral collision frequency, electron density and dust radius on the temporal evolution of electron irregularities associated with PMSE are investigated. The possible diagnostic information for various charged dust and background plasma quantities using the temporal behavior of backscattered radar power in active experiments is discussed. The computational results are used to make predictions for PMSE active modification experiments at 7.9, 56, 139, 224 and 930MHz corresponding to existing radar facilities. Data from a 2009 VHF (224 MHz) experiment at EISCAT is compared with the computational model to obtain dust parameters in the PMSE.

Item Type:
Journal Article
Journal or Publication Title:
Annales Geophysicae
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© Author(s) 2011. This work is distributed under the Creative Commons Attribution 3.0 License.
Uncontrolled Keywords:
?? physicsearth and planetary sciences (miscellaneous)astronomy and astrophysicsatmospheric sciencegeologyspace and planetary science ??
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Deposited On:
05 Mar 2012 12:13
Last Modified:
27 Nov 2023 00:10