the effect of salinity on this new thermal structure. Prac- 

 tically, however, the only available data may consist of BT's 

 with no accompanying salinity data. Therefore, it would be 

 wise to consider possible methods for either eventuality, 



a. If salinity data are not available in this case, 

 we may write 



Qe=Cpj[[T,(Z)-T{h)]clz ^^^^ 



where T(h) is the temperature that exists from the surface- 

 to some depth h which must be chosen to satisfy the integral. 

 Since the value of this integral, Qg, is known, if Tr>(z) is 

 known explicitly, then T(h) may be easily calculated. However, 

 since we do not always know the function explicitly, it is 

 much more convenient to evaluate this integral graphically. 



Since the units of Q^ are given in g, cal. cmr^, the area, 

 rT-(z) -T(h)]dz must have the units °C cm. Since BT data is 

 given in °F, and feet, this area may be numerically evaluated 



by a simple conversion factor 



h 



Q,=16.95Cpr[T,(z)-T(h)]dz 



•^0 ilk) 



If it becomes convenient to use meters for depth instead of 

 feet in plotting the curves, the conversion will then be 



n 

 Qe = 55.6CpJ[T, (z)-T(h)]dz 



(15) 



An indication of how some of the typical values of Qg 



13 



