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

• Main Authors: 鈴木 元之, 蔵野 隆夫, Motoyuki Suzuki, Takao Kurano
• Format: Report
• Language: English
• Published: 海上保安庁水路部 1982
• Subjects: 551.46; Antarctic; Gek; Antarc*
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=8292; http://id.nii.ac.jp/1291/00008292/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=8292&item_no=1&attribute_id=18&file_no=1

第20次日本南極地域観測隊, 海洋物理・化学定常観測として, 1978年11月から1979年4月まで「ふじ」艦上で, 表面観測237点, BT観測45点, XBT観測86点, GEK観測10点, 各層観測6点, およびリュツォ・ホルム湾の海氷上において各層観測1点を実施した。とりわけ, 2時間間隔の表面観測により表面海水中の海洋条件緯度変化, およびXBT観測による水温鉛直分布を詳細に調査した。また, 表面海水中の油成分および放射能も測定した。 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.