Physical and chemical data during Umitaka-maru cruises of the 58th Japanese Antarctic Research Expedition in January 2017

High quality physical and chemical data in the Southern Ocean is critical for improved understanding of future climates. As a part of Japanese Antarctic Research Expedition (JARE) 58 research project, we have obtained high quality Conductivity Temperature Depth (CTD) and water sampling data (salinity, dissolved oxygen, nutrients) at 5 sites locate along 110E transect, of which southern end reaching sea ice edge. Also, by using Thermosalinograph (TSG), sea surface temperature and salinity are continuously obtained all along cruise track taken between Fremantle and Hobart, except for Australian Exclusive Economic Zone. Data quality are validated by following instruments and methods of Global Ocean Ship-Based Hydrographic Investigation Program (GO-SHIP) recommendation as far as possible. CTD (including XCTD) and water sampling data are provided in Exchange formats for WOCE Hydrographic Program (WHP) CTD and bottle data and TSG data in simple .csv format.