36.2 36 3 



I I . I . I . I . I 



I I I 



I . I . I . I . I . I . I I I I I . I I I . I ,1,1 



I , I 



I I I I I 



SEP NOV JAN MAR MAY JUL SEP NOV JAN MAR MAY JUL SEP NOV JAN MAR MAY JUL SEP NOV JAN MAR MAY JUL SEP NOV JAN MAR MAY JUL SEP NOV JAN MAR MAY JUL SEP NOV JAN MAR MAY 



■ 966 1967 1966 196 9 1970 1971 1972 1973 



FiGtTBE 6. — MuiUlily average depth (m) of selected isohalines C/qo) versus time at Ocean Station ECHO, Sep- 

 tember 1966-April 1973. 



