R = 0.6468 -0.6456 i 

 r = 0.97 



~ 0.4 - 



0.3 0.4 0.5 0.6 



Sediment Porosity (n) 



Figure 3. The relationship between sediment porosity and reflection 



coefficient as measured by various researchers. Also shown 

 is the common regression line with the 99 percent confidence 

 limits. (From Faas , 1969. Used by permission.) 



27 



