100 



200 



300 



400 



500 



600 



700 



800- 



900 



FT. 



100 



200 



300 



400 



500 



600 



700 



BOO 



9° 



10° 



13° 



17° 



20° 21° 



900 



3° 2° 1° s 0° N 1° 2° 3° 4° 5° 6° 7° 8° 



FIG 5 VERTICAL SECTION SHOWING ISOTHERMS BASED ON 900 FT BATHYTHERMOGRAPH OBSERVATIONS TAKEN DURING HYDROGRAPHIC STATION LINE 30 THROUGH 53 (SEE FIG I ) SHORT 

 HORIZONTAL DASHES REPRESENT MAXIMUM DEPTH OF OBSERVATION WHEN LESS THAN 900 FT CURVE NEAR TOP OF SECTION SHOWS CORRESPONDING SURFACE TEMPERATURES ACCORD- 

 ING TO INSET TEMPERATURE SCALE . FEBRUARY 18 TO MARCH I 1950 ,— ^ ^ 



