The International Bathymetric Chart of the Southern Ocean Version 2

• Published in: Scientific Data
• Main Authors: Dorschel, Boris, Hehemann, Laura, Viquerat, Sacha, Warnke, Fynn, Dreutter, Simon, Schulze Tenberge, Yvonne, Accettella, Daniela, An, Lu, Barrios, Felipe, Bazhenova, Evgenia, Black, Jenny, Bohoyo, Fernando, Davey, Craig, de Santis, Laura, Escutia Dotti, Carlota, Fremand, Alice C., Fretwell, Peter T., Gales, Jenny A., Gao, Jinyao, Gasperini, Luca, Greenbaum, Jamin S., Henderson Jencks, Jennifer, Hogan, Kelly, Kuk Hong, Jong, Jakobsson, Martin, Jensen, Laura, Kool, Johnathan, Larin, Sergei, Larter, Robert D., Leitchenkov, German, Loubrieu, Benoit, Mackay, Kevin, Mayer, Larry, Millan, Romain, Morlighem, Mathieu, Navidad, Francisco, Nitsche, Frank O., Nogi, Yoshifumi, Pertuisot, Cecile, Post, Alexandra L., Pritchard, Hamish D., Purser, Autun, Rebesco, Michele, Rignot, Eric, Roberts, Jason L., Rovere, Marzia, Ryzhov, Ivan, Sauli, Chiara, Schmitt, Thierry, Silvano, Alessandro, Smith, Jodie, Snaith, Helen, Tate, Alex J., Tinto, Kirsty, Vandenbossche, Philippe, Weatherall, Pauline, Wintersteller, Paul, Yang, Chunguo, Zhang, Tao, Arndt, Jan Erik
• Other Authors: Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI), Helmholtz-Gemeinschaft = Helmholtz Association, Geo-Ocean (GEO-OCEAN), Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Département Infrastructures de Recherche et Systèmes d'Information (IRSI), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Geoscience Australia, Department of Earth System Science Irvine (ESS), University of California Irvine (UC Irvine), University of California (UC)-University of California (UC), European Project: 312762,EC:FP7:INFRA,FP7-INFRASTRUCTURES-2012-1,EUROFLEETS2(2013)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2022
• Subjects: [SDU]Sciences of the Universe [physics]; Antarc*; Antarctic; Antarctica; Southern Ocean
• Online Access: https://hal.science/hal-04203809; https://doi.org/10.1038/s41597-022-01366-7

International audience The Southern Ocean surrounding Antarctica is a region that is key to a range of climatic and oceanographic processes with worldwide effects, and is characterised by high biological productivity and biodiversity. Since 2013, the International Bathymetric Chart of the Southern Ocean (IBCSO) has represented the most comprehensive compilation of bathymetry for the Southern Ocean south of 60°S. Recently, the IBCSO Project has combined its efforts with the Nippon Foundation – GEBCO Seabed 2030 Project supporting the goal of mapping the world’s oceans by 2030. New datasets initiated a second version of IBCSO (IBCSO v2). This version extends to 50°S (covering approximately 2.4 times the area of seafloor of the previous version) including the gateways of the Antarctic Circumpolar Current and the Antarctic circumpolar frontal systems. Due to increased (multibeam) data coverage, IBCSO v2 significantly improves the overall representation of the Southern Ocean seafloor and resolves many submarine landforms in more detail. This makes IBCSO v2 the most authoritative seafloor map of the area south of 50°S.