Multi-instrument observations of mesospheric motions over Arecibo - Comparisons and interpretations

Details Multi-instrument observations of mesospheric motions over Arecibo - Comparisons and interpretations Multi-instrument observations of mesospheric motions over Arecibo - Comparisons and interpretations

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jatp...55..241h&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 55, no. 3, p. 241-287.

Physics

53

Aeronomy, Atmospheric Circulation, Doppler Radar, Imaging Radar, Mesosphere, Radio Interferometers, Wind Measurement, Data Reduction, Fabry-Perot Interferometers, Gravity Waves, Incoherent Scatter Radar, Instrument Errors

Scientific paper

Multiinstrument observations of mesospheric motions of Arecibo made during the AIDA '89 international campaign are reported. The partial-reflection system employed was an imaging Doppler interferometer operating at 3.175 MHz. Its raw data were analyzed both in its own basic mode and in modes adopted by other interferometric and 'spaced antenna' systems. The motions thus revealed are compared with those found by what are argued to be more certain measurers of winds: an incoherent-scatter radar at heights of 65-95 km, a meteor-wind radar at heights of 80-100 km, and a Fabry-Perot interferometer measuring 0(1S) emissions near a height of 97 km. It is concluded that MF/HF partial-reflection systems may be expected to yield a good representation of ambient winds up to a height of about 80 km. They fail to give a consistently reliable measurement of the ambient winds above a height of about 80 km.

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