Physics
Scientific paper
Nov 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3622105m&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 22, CiteID L22105
Physics
Planetary Sciences: Solar System Objects: Meteors, Radio Science: Remote Sensing, Ionosphere: Meteor-Trail Physics, Radio Science: Ionospheric Physics (1240, 2400)
Scientific paper
Recently there has been an interest in the day-to-night variations in the duration of non-specular meteor trails or Range Spread Trail Echoes (RSTE). The reported differences between the day and night durations of meteor trails have been used to arrive at conclusions on the role played by background plasma concentration and background electric field and/or winds in the formation and evolution of RSTEs in general. However, the work done to-date does not account for the aspect sensitivity of meteor trails. We present the duration distribution of meteor trails — the most comprehensive study yet on RSTE durations — considering the aspect sensitivity of these trails. In contrast to the previous reports, the day-night trail durations are statistically similar in our observations. These results stress the importance of considering aspect sensitivity while performing any such study and how a failure to do so might result in misleading results and conclusions.
Malhotra Akshay
Mathews John D.
Ray Kimberly
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