HORTON: THE EFFECT OF ROUGH INTERFACES ON SIGNALS 

 THAT PENETRATE THE BOTTOM 



LINE OF CENTERS 



P(x,y,z) 



ENTRY REGION 



REFLECTION 



EXIT REGION 



MEAN LEVEL 



LOCAL 

 MEANS 



-t xi 



Q(x^, y^, Zj) 



11- 



P(x^, y^, z^) 



Figure 6. GEOMETRY FOR APPLICATION OF GREEN'S FUNCTION 



284 



