Additional possibilities of radiometeor azimuthal method for measuring wind velocity in lower thermosphere
Abstract
The need for applying meteor measurements to solution of geophysical problems and the needs of meteorology not only require a more precise determination of vertical velocities, but also better evaluations of characteristics of wind flow deformation than is possible by the Greenhow and Manning methods, which are inadequate for this purpose or encumbered by serious errors. Additional possibilities of the radiometer azimuthal method were examined for measuring wind velocity which follow from the condition of wind field nonuniformity within the limits of the sounding region. Expressions are derived for determining the characteristics of wind field nonuniformity at the considered altitudes. Experimental estimates of the characteristics of wind field nonuniformity in the meteor zone were obtained on the basis of the results of radiometeor wind measurements in 8 azimuths. This made it possible to compute the mean daily value of plane divergence, deformation components, and vertical velocity. Allowance for wind field nonuniformity in the meteor zone affords new possibilities for the azimuthal radiometeor method for measuring wind velocity at these altitudes.
- Publication:
-
USSR Report Earth Sciences JPRS UES
- Pub Date:
- July 1985
- Bibcode:
- 1985RpESc.......43G
- Keywords:
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- Azimuth;
- Radio Meteorology;
- Radio Meteors;
- Thermosphere;
- Wind Profiles;
- Wind Velocity Measurement;
- Deformation;
- Vertical Air Currents