Report on oceanographic observation by the 20th Japanese Antarctic Research Expedition 1978-1979

On board the icebreaker FUJI from November 1978 to April 1979,the physical and chemical oceanographic observations were carried out, as part of the routine programs of the 20th Japanese Antarctic Research Expedition. Two hundreds and thirty seven stations for surface observation, 45 stations for BT observation, 86 stations for XBT observation, 10 stations for GEK measurement and six stations for serial observation were occupied en route. The serial observation was made at one station in the ice-covered area of Lutzow-Holm Bay. Latitudinal changes of the oceanographic condition of surface water were investigated with the intensive surface samplings at intervals of two hours. Also, the XBT observation at intervals of two to six hours revealed the fine vertical profile of water temperature. Petroleum oil and radioactivity of surface water were also measured.

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