TABLE OF CONTENTS 



Page 



List of Figures . '^ ■ vii . 



List of Tables xiii 



FOREWORD XV 



L INTRODUCTION I-l 



A. PURPOSE AND SCOPE ,1-1 



B. APPROACH ,1-1 



C. GENERAL CONCLUSIONS . 1-2 

 II. SUMMARY II- 1 



A. BASIC PRINCIPLES II-l 



B. SCATTERING BY STRONG INHOMOGENEITIES II-4 



C. SCATTERING BY WEAK INHOMOGENEITIES II- 7 



III. STRONG INHOMOGENEITIES III-l 



A. SCATTERING OF SOUND FROM A FLUID SPHERE III-l 



B. SCATTERING FROM AIR BUBBLES III-14 



C. SCATTERING BY MARINE ORGANISMS III-62 



D. SCATTERING FROM THE SEA SURFACE III-68 



IV. WEAK INHOMOGENEITIES IV-1 



A. THE WAVE EQUATION FOR AN INHOMOGENEOUS 

 MEDIUM IV-1 



B. SCATTERING FROM AN ISOLATED INHOMOGENEITY IV- 10 



artbur B.ILUtlcJnt. 



S-7001-0307 



