- 50 - . 



In shallow depths, divers will investigate the canyon head using SCUBA gear. 

 All equipment which can provide data on this canyon will be utilized in an 

 investigation of which the details will be planned in the field by the 

 Captain in consultation with Drs. Shepard, Dietz, Stewart, and Burns. 



Following this canyon study, the ship will go directly to Colombo for fuel, 

 resupply, and open house. It is possible that one marine scientist from 

 India and one from Ceylon will take part on the leg from Calcutta to Colombo. 

 At Colombo all plankton samples collected with the II OE standard net will be 

 forwarded together with the location of each sample to the Indian Ocean 

 Biological Center, CSIR, University Oceanographic Laboratories, Ernakulam, 

 Cochin, India. The official IIOE stencil should be used on all such shipments. 

 At Cochin, determination will be made of displacement volume, and sorting 

 will be accomplished for distribution to specialists in the various zooplankton 

 groups . 



\ 



Additional personnel: 



Dr. Harris B. Stewart, Jr., C&GS 



Dr. Robert S. Dietz, C&GS 



Geophysicist (gravity), C&GS 



Mr. Austin Weeks, C&GS 



Mr. Reginald Harbison, C&GS 



Mr. Byron Hale (deep-sea camera), C&GS 



Dr. Francis P. Shepard, SIO 



Mr. Kelvin S. Rodolfo, U. S. C. 



Meteorologist, Weather Bureau 



Meteorologist, Weather Bureau 



Biologist, University of Hawaii 



Biologist, University of Hawaii 



Marine Scientist, India 



Marine Scientist, Ceylon 



LEG VI - COLOMBO TO DJARKARTA 



Leave Colombo May 25, arrive Djarkarta June 23. 



If the southern limits of the Ganges Canyon were not found prior to the work 

 in Trincomalee Canyon, the Ganges Canyon investigation will be continued 

 southward until the terminus is reached. Otherwise PIONEER will go directly 

 to 5°N, 84°E to start the first of three north- south profiles of oceanographic 

 stations from 5°N to 5°south along 8^ E, and 92°E. Standard underway practical- 

 between stations and between profiles. Oceanographic stations will be occupied 

 for temperature, salinity, dissolved oxygen and phosphate along each profile 

 at 5°> ^° j> and 3°? and at l/2 degree intervals to the Equator for a total of 



59 



