Computer Science – Sound
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adspr..12..165i&link_type=abstract
(The earth's middle and upper atmosphere; Proceedings of the Topical Meeting of the Interdisciplinary Scientific Commission C /M
Computer Science
Sound
Eiscat Radar System (Europe), Electron Density (Concentration), Gravity Waves, Mesosphere, Radar Measurement, Rocket Sounding, Power Spectra, Radar Echoes, Rocket-Borne Instruments, Vertical Distribution
Scientific paper
Electron density measurements from three rockets launched during Turbulence/Gravity Wave and Eiscat salvo of the MAC/SINE campaign in Northern Norway on 14 and 15 July 1987 are compared with simultaneous 53.5 MHz radar observations. It is found that the radar reflectivity is generally enhanced, sometimes up to 10 dB, over what would be expected from the rocket observations in the case of isotropic electron density fluctuations. The observations can be reconciled, however, under the assumption of a large anisotropy of the fluctuations that typically corresponds to a ratio of the horizontal to the vetical coherence length of about 10. This implication is consistent with the observed aspect sensitivity of the radar data.
Inhester Bernd
Ulwick James C.
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