AbstractsPhysics

This thesis nresents preliminary work on the study of the structure a,nd mechanism of rain showers emploving radar as a research tool. The first chapter is compiled from published literature, and is intended to bring the reader up to date on both the previous and present work in the field. It includes a section on the basic theory involved when radar is used to investigate atmospheric pheno1nena. Section 1 of this chapter has been written in collaboration with Mr. W.M. Palmar.Chapter II is an assessment of the scattering functions presented by RYDE( 4 ), a pioneer in the theoretical treatment of scattering of electromagnetic ra11at1on by raindrops.The author has gone more fully into the applicability of these functions under variouP cond1tions than has been done elsewhere, and has considered their applicability in the lightof recent findings of the Canadian Army Onerational research Group. Chapter III presents the analyses of rain showers as seen on the radar displays. Numerous illustrations are included,which provide a comprehensive picture of the internal structure of showers, as well as certain features of their motion and\ development.