/ 



SIGMA f 

 — I 27 90 



27 80 

 27 70 

 27.60 

 27.S0 

 Z7.40 

 27.30 

 27 20 

 27 10 

 27 OO 

 26 90 

 26.60 

 26.70 

 26.10 



0' I I ' I I I I I I I I I I I ■ I I I I I I I ' I I I I I I I I I 1 I I I I Ml 



MN JUL I jJtN JUL I JAN JUL I JAN JUL I JAN JUL 

 I 1964 I I 1969 I 1 1966 1 I P967 1 I 1966 



I I ' ' I ' I ' I I ' 



a 



FIGURE 64. Monthly averages of sigma-t (calculated from the monthly averages of temperature and salinity) versus lime at selected depths at Ocean 

 station BRAVO, January 1964-November 1969. 



23 



