TEMPERATURE 



77 



barriers more or less deeply submerged, the 

 position and height of the barriers determining 

 the deep-water temperature conditions within 

 the seas. Thus, supposing a barrier covered by 

 500 fathoms of water to separate one of these 

 seas from the open ocean, the temperature 

 w^ould be found to decrease in like manner, 



Sea Surface 



Fig. 3. — Diagrammatic section across the barrier separating the Celebes 

 Sea from the Korth Pacific, showing distribution of temperature. 



both within the sea and in the open ocean 

 outside, down to 500 fathoms ; but deeper than 

 500 fathoms in the open ocean the temperature 

 would continue to decrease downwards to the 

 bottom, whereas in the enclosed sea no further 

 decrease would be observed beyond 500 

 fathoms. In other words, the deep basin of 

 the enclosed sea is occupied by water which is 

 believed to have flowed over the barrier from 



