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Proceedings Paper

Microwave raindrop distrometer for radar meteorology applications
Author(s): Eugene F. Greneker
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Paper Abstract

Meteorological radars are used to infer rainfall rate 'R' on the basis of reflectivity of the raindrops contained within a radar range and azimuthal cell. However, in order to achieve accurate measurements of R, the raindrop size distribution must be known over a drop size interval between approximately 0.5 and 6 millimeters diameter. This paper describes a Doppler raindrop distrometer that will provide the size distribution of raindrops reaching the earth. The system uses a vertically pointing homodyne microwave Doppler sensor to determine the velocity of falling raindrops. Early research by others has shown that rainfall velocity is very closely correlated with raindrop size. Because this relationship holds over the size interval of interest, drop size can be inferred by measuring the fall velocity of the raindrops.

Paper Details

Date Published: 26 August 1998
PDF: 7 pages
Proc. SPIE 3395, Radar Sensor Technology III, (26 August 1998); doi: 10.1117/12.319446
Show Author Affiliations
Eugene F. Greneker, Georgia Tech Research Institute (United States)


Published in SPIE Proceedings Vol. 3395:
Radar Sensor Technology III
Robert Trebits; James L. Kurtz, Editor(s)

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