OPERATION DEEP FREEZE 60. 1959-1960. OCEANOGRAPHIC SURVEY RESULTS

• Other Authors: NAVAL OCEANOGRAPHIC OFFICE NSTL STATION MS
• Format: Text
• Language: English
• Published: 1961
• Subjects: *HYDROGRAPHIC SURVEYING; *OCEANOGRAPHY; *POLAR REGIONS; ICE; OXYGEN; SALINOMETERS; SEDIMENTATION; TEMPERATURE; DEEP FREEZE OPERATION; Antarctic; Balleny Basin; McMurdo Sound; Ross Ice Shelf; The Antarctic; Antarc*; Ice Shelf
• Online Access: http://www.dtic.mil/docs/citations/AD0260903; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0260903

Results of oceanographic research during 19591960 are presented. Ships' tracks to, in, and from the Antarctic and locations of all oceanographic stations are given. In Eastern Balleny Basin, surface temperatures ranged from -0.44 to -1.58 C. Within the surface layer, temperature decreased to a depth of about 100 meters and then increased to a maximum of greater than 1.25 C, indicating the upper level of the Antarctic Circumpolar Water. Surface salinities were low (less than 34.00%). Values increased rapidly to 34.50% in the upper 200 meters with salinity maxima occurring between 600 and 1,200 meters depth. A west-east line of stations taken in McMurdo Sound is discussed. An extremely low temperature structure was noted, with temperatures from surface to bottom not exceeding 0.00 C throughout the water column. The effects of ice in the area were evident by low surface temperatures and salinities. Below the surface layer, temperatures decreased gradually to values as low as -1.93 C near the bottom of the deeper stations. Throughout the areas temperatures were less than 0 C, the degree of coldness indicating distance from the Ross Ice Shelf. (Author)