APPENDIX 1 - DATA UNDERLYING THIS REPORT 



To serve the technical reader, we give for each figure 

 and its accompanying explanatory text the kind and amount of infor- 

 mation from which it was prepared. 



Figure 1. Equatorial hydrographic cruises. Along the 

 solid-line portions of the tracks charted in this figure, the following 

 standard plan and procedures apply; 



1. Station interval was 60 nautical miles between 15 N. 

 and 8° S. , 120 nniles at higher latitudes. 



2. Serial oceanographic observations were made to 



1, 500 meters depth during cruises 2 and 5; to 1, 200 meters during 

 cruises 8, 11, and 14; to 500 meters during cruises 15 and 19: 

 and to 400 meters during cruise 16. 



3. The properties measured were temperature, sali- 

 nity, oxygen, and phosphate. Oxygen determinations were omitted 

 subsequent to cruise 11. 



4. Subsequent to cruise 2, an oblique zooplankton tow 

 from the surface to 200 meters was taken at each station with a 

 meter net of ^ 30xxx grit gauze. 



5. Two 900-foot bathythermographs were taken at 

 each station and at 10-mile intervals running along station lines. 

 Casts were taken at 20- or 30-mile intervals while running other 

 than along hydrographic station lines. 



6. Surface current nneasurennents were taken with the 

 geomagnetic electrokinetograph (GEK) on cruises 14 and 19, and 

 surface and deep currents were studied with the use of drags on 

 cruise l6. 



34 



