Distilled Water 



Chesapeake Bay 



)v 



-^ 



cf is the part of the absorption of a light beam arising from scattering 



and p that due to pure absorption. The total absorption is given by 



~lcx 

 k = cK-p where k occurs in the exponential e . Hulbert also exhibits 



the following graph: 



kxlO^ft ^ 



4000 



5000 



6000 



■11- 



