2024-03-29T14:13:49Zhttps://pdr.repo.nii.ac.jp/?action=repository_oaipmhoai:pdr.repo.nii.ac.jp:000000182023-03-24T08:05:10Z00013Physical and chemical oceanographic data during Umitaka-maru cruise of the 58th Japanese Antarctic Research Expedition in January 2017engJapanese Antarctic Research Expedition research projectHigh quality oceanographic physical and chemical dataAnnually carried out observationFuture climatehttp://id.nii.ac.jp/1434/00000010/info:doi/10.20575/00000010Journal ArticleConnecting all major ocean basins, the Southern Ocean is pivotal in the meridional overturning circulation of the global oceans. High-quality physical and chemical oceanographic data in the Southern Ocean are thus critical for improved understanding of future climates. As a part of the 58th Japanese Antarctic Research Expedition research project, we have obtained high quality Conductivity Temperature Depth (CTD) and water sampling data (salinity, dissolved oxygen, and nutrients) at 5 sites located along 110°E transect, the southern end of which reached the sea ice edge. Sea surface temperature and salinity were continuously obtained with a Thermosalinograph (TSG) along cruise track taken between Ports of Fremantle and Hobart, except for Australian Exclusive Economic Zone. Data quality was validated by following as far as possible the recommendation for instruments and methods of the global Ocean Ship-Based Hydrographic Investigation Program. CTD (including expendable CTD) and water sampling data are provided in Exchange formats for World Ocean Circulation Experiment Hydrographic Program CTD and bottle data; TSG data are in simple .csv format.Polar Data Journal41292020-01National Institute of Polar Research2432-6771publisherhttps://pdr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=18&item_no=1&attribute_id=22&file_no=1CC BYhttps://pdr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=18&item_no=1&attribute_id=22&file_no=2Ⓒ 2020 National Institute of Polar Researchhttps://pdr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=18&item_no=1&attribute_id=22&file_no=4Ⓒ 2020 National Institute of Polar ResearchOceanography/Sea ice studies2020-01-15