Physics – Plasma Physics
Scientific paper
Oct 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3319801k&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 19, CiteID L19801
Physics
Plasma Physics
9
Atmospheric Processes: Mesospheric Dynamics, Ionosphere: Polar Cap Ionosphere, Atmospheric Processes: Turbulence (4490), Space Plasma Physics: Active Perturbation Experiments, Ionosphere: Auroral Ionosphere (2704)
Scientific paper
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.
Honary Farideh
Kavanagh Andrew J.
Rietveld Michael T.
Senior A.
No associations
LandOfFree
First observations of the artificial modulation of polar mesospheric winter echoes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with First observations of the artificial modulation of polar mesospheric winter echoes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First observations of the artificial modulation of polar mesospheric winter echoes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-906492