c. Exchange with atmosphere by evaporation. 



2. Mixing processes 



a. Convection 



b. Turbulent mixing 



3. Dynamic processes 



a. Horizontal advectlon 



b. Vertical advectlon due to Internal waves 



The parameters that affect the thermodynamic and mixing 

 processes are mainly meteorological, such as air temperature 

 and humidity, vapor pressure, wind, sea and swell, etc. It was 

 therefore decided to attempt, by consideration of known principles, 

 to evaluate the effects of these processes first, at the same time 

 attempting to minimize the dynamic effects by testing these 

 relationships with data collected in areas where large scale 

 motions do not occur. If this attempt were successful, the 

 dynamic effects then could be considered. 



The following discussion should be considered more as an 

 exposition of possible methods and techniques that might be 

 utilized in attacking this problem than as a body of proven 

 scientific results leading to a solution of the problem. 

 Although several of the procedures tested yielded promising 

 results, the few months that the project has been under way 

 and the lack of available data have precluded the opportunity 

 of testing a sufficient number of cases to demonstrate their 

 validity conclusively; 



