MENTOR: Adding an outlying receiver to an ST radar for meteor-wind measurement

Details MENTOR: Adding an outlying receiver to an ST radar for meteor-wind measurement MENTOR: Adding an outlying receiver to an ST radar for meteor-wind measurement

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984maph...14..325r&link_type=abstract

In International Council of Scientific Unions Middle Atmosphere Program. Handbook for MAP. Vol. 14 p 325-329 (SEE N85-32466 21

Mathematics

Logic

Meteor Trails, Meteorites, Meteorological Radar, Radio Meteorology, Doppler Effect, Feasibility Analysis, Ionizing Radiation, Radar Antennas, Radar Echoes, Wind Profiles

Scientific paper

Radar scattering from ionized meteor trails has been used for many years as a way to determine mesopause-level winds. Scattering occurs perpendicular to the trails, and since the ionizing efficiency of the incoming meteoroids depends on the cosine of the zenith angle of the radiant, echoes directly overhead are rare. Stratosphere-troposphere (ST) radars normally sample within 15 deg of the vertical, and thus receive few meteor echoes. Even the higher powdered mesosphere-stratosphere-troposphere (MST) radars are not good meteor radars, although they were used to successfully retrieved meteor winds from the Poker Flat, Alaska MST radar by averaging long data intervals. It has been suggested that a receiving station some distance from an ST radar could receive pulses being scattered from meteor trails, determine the particular ST beam in which the scattering occurred, measure the radial Doppler velocity, and thus determine the wind field. This concept has been named MENTOR (Meteor Echoes; No Transmitter, Only Receivers).

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