ABSTRACT 



Results of marine geophysical researcli during tlie U. S. Navy operations in 

 support of DEEP FREEZE 62, 1961-1962, are presented. Observations were 

 made along ships' tracks to and from and in the Antarctic. Detailed surveys 

 were conducted in the Ross Sea and Commonwealth Bay from three ice- 

 breakers: USS BURTON ISLAND (AGB-1), USS GLACIER (AGB-4), and USCGC 

 EASTWIND (WAGB-279). 



U. S. Naval Oceanographic Office personnel recorded 60 oceanographic sta- 

 tions aboard BURTON ISLAND, GLACIER, and EASTWIND. Of these, 59 were 

 taken in the Ross Sea; the majority were occupied in the western and southern 

 sectors. Station data included vertical distribution of observed temperatures, 

 salinities, and dissolved oxygens. Profiles of the observed physical and 

 chemical properties of the water are presented. Densities, dynamic heights, 

 and sound velocities were calculated by electronic computer for all stations. 



Water types in the Ross Sea are discussed. From the data presented, it is 

 evident that warmer water from oceanic depths moves in over the continental 

 shelf and extends as a wide tongue into much of the Ross Sea. The lateral 

 and vertical extent of this warm-water penetration into the Ross Sea during 

 the Austral summer is described. 



Measurements of the earth's total magnetic field intensity were recorded over 

 approximately 10,000 miles of track on BURTON ISLAND. Nearly half of the 

 collected data were obtained south of New Zealand. A detailed geomagnetic 

 and bathymetric survey was conducted in Commonwealth Bay, Antarctica. 

 Comparisons of total magnetic intensity and bathymetric data are presented 

 in 34 profiles. Bathymetric and total magnetic intensity contour charts of 

 Commonwealth Bay are included. 



« c-iimm-iru onH fi a liH flagor-ir>tinn .rif .KA hnttnm corfimonf SS m pI'"' Collected 



transferred to 

 resulting data. 



