Abstract
Abstract A pilot project concerning the measurement of rainfall by polarization diversity radar, conducted jointly by the Alberta Research Council and the University of Essex in the summer of 1989, is described. The objective of the experiment was to test the theory that differential propagation phase shift can give a better estimate of rainfall with high rain rates (about 30 mm h−1 and greater) than reflectivity measurements. The project comprised a field experiment that was conducted in central Alberta during the period 20 July to 2 August 1989. The field experiment involved observing storms within about a 70‐km radius from Red Deer with the ARC S‐band polarization diversity radar and measuring rainfall at the ground through a network of fixed, volunteer observers and a mobile storm‐chase operation. Theory describing how differential propagation phase may be extracted from the data recorded by the radar system is given. Data collected on three days during the experiment (27 July, 29 July and 2 August) h...
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