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17 stations along each profile. The stations at 5°> 3°? and 1°N and S will 

 he deep stations to the bottom, the others will be to 2,000 meters. After 

 the station at the equator and 92°E, the ship will move due west to 90°E. 

 The IJOE has designated 0° at 90°E as a standard station to be occupied by- 

 all ships in the area. At this point an oceanographic station will be ob- 

 served to 2,000 meters with bottles at standard depths. The ship will then 

 return to the profile at 0° 30' S, 92°E and continue station observations as 

 planned. Work done on the LUSIAD expedition under Dr. Knauss showed that the 

 salinity structure in the region of the thermocline necessitated a 10-meter 

 bottle spacing in that region for adequate definition. For this reason it 

 is planned that PIONEER will use $6 bottles between the surface and 1,200 

 meters at the nine stations between 2°N and 2°S. Bottle spacing below 1,200 

 meters will be at standard depths. 



Upon completion of these three sections of oceanographic stations PIONEER 

 will make three crossings of the northwestward extension of the trend of the 

 Java Trench. The first will be from 5°S, 92°E to Sumatra in the general 

 area of Padang (l°S, 100° 30 'E), from thence SSW across the trend to the 

 latitude of the Sunda Strait, thence due east through, the Sunda Strait to 

 Djakarta. The purpose of these profiles is to determine the features of 

 the inner and outer troughs on opposite sides of the Mentawai Island chain. 

 Supplementing the standard underway investigations will be heat probe, 

 dredging, coring, deep-sea camera, and electrosonic profile studies as 

 deemed worthwhile by the Captain in consultation with the pertinent scientists, 



Upon arrival at Djakarta, open house will be held aboard ■PIONEER and local 

 lectures will be arranged through USIA. In addition, a one-day trip out of 

 Djakarta will be planned to acquaint Indonesian scientists with the work of 

 the PIONEER, The number of guest scientists that can be accommodated will 

 be determined by the Captain. A one- day trip to Krakatoa and the eastern 

 flank of the Java Trench is tentatively planned.' At Djakarta those biologi- , 

 "cal samples obtained with the II0E standard net will be shipped to the Indian 

 Ocean Biological Center at Cochin, India. 



Additional Personnel; 



Geophysicst (ESP), C&GS 



Geophysicist (gravity), C&GS 



Mr. Ronald X. Reed '(Oeeanographer), C&GS 



Mr, Richard B, Perry (Geological Oeeanographer), C&GS 



Oeeanographer, C&GS 



Oeeanographer, C&GS 



Mr. Mark Schuldt (Deep-sea camera), C&GS 



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



Meteorologist, Weather Bureau 



Meteorologist, Weather Bureau 



