OPERATION DEEP FREEZE 61. 1960-1961 MARINE GEOPHYSICAL INVESTIGATIONS Open PDF Document Details Document Type Technical Report Publication Date Jun 01, 1962 Accession Number AD0297261 Entities Organizations Naval Oceanographic Office Tags Communities of Interest Ground and Sea Platforms DTIC Thesaurus Topics Chemical Properties Dead Reckoning Geography Magnetic Fields Magnetic Properties Measurement North America Oceanography Oceans Physical Properties Ross Sea Salinity Sonar Topography Two Dimensional United States Water