5' 0* 



S— LATITUDE — N 



Fig. 16 — Upper: surface temperatures by bucket thermometer in degrees F. , measured with 

 each BT cast. Lower: temperatures from BT data in degrees F. John R. Manning 

 cruise 11. Right: stations 1 (January 29) - 9, 155° W. longitude, 8" N. lo 2°40'S. lati- 

 tude, January-February 1952. Center: stations 19 (March 4) - 27, 169 W. longitude, 

 6°40'S. to 4°10'N. latitude, March 1952. Left: stations 10 (February 16) - 18, 180° longi- 

 tude, 2°35'N. to 8° S. latitude, February 1952. Plotting interval 2° F. Horizontal dashes 

 .indicate depths of observations less than 900 feet. 



Fig. 17 — BT traces illustrating the "sharp" thermocline bottom, 2°-3° N. latitude. Temper- 

 atures in degrees F. , depths in feet. Position and date of each trace indicated. 



17 



