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Modeling long duration meteor trails
(American Geophysical Union, 2007-12-29)
We constructed a model of the plasma evolution of meteor trails in order to simulate high‐power‐large‐aperture radar observations. This model follows meteor evolution from ablation and ionization to head echo formation and ...
Interferometric meteor head echo observations using the Southern Argentina Agile Meteor Radar
(American Geophysical Union, 2014-02)
A radar meteor echo is the radar scattering signature from the free electrons generated by the entry of extraterrestrial particles into the atmosphere. Three categories of scattering mechanisms exist: specular, nonspecular ...
Nonspecular meteor trail altitude distributions and durations observed by a 50 MHz high‐power radar
(American Geophysical Union, 2010-12-30)
High-power large-aperture (HPLA) radars frequently observe nonspecular meteor trail echoes that result from plasma turbulence driven by the intense pressure gradients on the trail edges. This paper analyzes the altitude ...
Modeling the global micrometeor input function in the upper atmosphere observed by high power and large aperture radars
(American Geophysical Union, 2006-07-26)
We report initial results of an effort to model the diurnal and seasonal variability of the meteor rate detected by high power and large aperture (HPLA) radars. The model uses Monte Carlo simulation techniques and at present ...
Improving the accuracy of meteoroid mass estimates from head echo deceleration
(Springer, 2007-12)
This paper examines current techniques used to determine meteoroid mass from high-power, large aperture (HPLA) radar observations. We demonstrate why the standard approach of fitting a polynomial to velocity measurements ...
High-altitude meteors and meteoroid fragmentation observed at the Jicamarca Radio Observatory
(Royal Astronomical Society, 2014-12-08)
Modern high-power, large-aperture (HPLA) radars have been used in a variety of investigations including the investigation of meteoroid fragmentation. The identification of fragmentation has been based on a detailed ...