ORCID
- Jenny A. Gales: 0000-0003-4402-5800
Abstract
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.
DOI Link
Publication Date
2022-06-07
Publication Title
Scientific data
Volume
9
Acceptance Date
2022-03-16
Deposit Date
2022-04-24
Embargo Period
2022-06-14
Funding
IBCSO is part of GEBCO and the Nippon Foundation – GEBCO Seabed 2030 Project and receives funding from the Nippon Foundation of Japan. Additional funding was provided by AWI Annex funds. Here we would like to express our sincere gratitude to all agencies, institutions, and individuals that have laboriously collected bathymetric data in the Southern Ocean and have provided them to the IBCSO Project. Furthermore, we would like to thank everybody who helped in the background facilitating the compilation of data. We are grateful to AORI and the RV Hakuho-Maru for providing bathymetric data from the expeditions KH07-04, KH09-05, and KH10-07. Data were also collected by RV OGS Explora during the ANTSSS project of Eurofleets2 EU programme grant no. 312762. We are also thankful for data provided by the Korea Polar Research Institute. We acknowledge the use of the CSIRO Marine National Facility, grid.473585.8 in undertaking this research. We thank NASA for funding BedMachine under NASA Award 80NSSC18M0083. For the REMA dataset, we acknowledge geospatial support provided by the Polar Geospatial Center under NSF-OPP awards 1043681 and 1559691 and DEMs provided by the Byrd Polar and Climate Research Center and the Polar Geospatial Center under NSF-OPP awards 1543501, 1810976, 1542736, 1559691, 1043681, 1541332, 0753663, 1548562, 1238993 and NASA award NNX10AN61G. We are thankful to two anonymous reviewer for improving the manuscript with their helpful comments. Open Access funding enabled and organized by Projekt DEAL.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Dorschel, B., Hehemann, L., Viquerat, S., Warnke, F., Dreutter, S., Schulze, T., Accettella, D., An, L., Barrios, F., Bazhenova, E., Black, J., Bohoyo, F., Davey, C., De, S., Escutia, D., Fremand, A., Fretwell, P., Gales, J., Gao, J., Gasperini, L., Greenbaum, J., Henderson, J., Hogan, K., Kuk, H., Jakobsson, M., Jensen, L., Kool, J., Mayer, L., Millan, R., Morlighem, M., Navidad, F., Nitsche, F., Nogi, Y., Pertuisot, C., Post, A., Pritchard, H., Purser, A., Rebesco, M., Rignot, E., Roberts, J., Rovere, M., Ryzhov, I., Sauli, C., Schmitt, T., Silvano, A., Smith, J., Snaith, H., Tate, A., Tinto, K., Vandenbossche, P., Weatherall, P., Wintersteller, P., Yang, C., Zhang, T., & Arndt, J. (2022) 'The International Bathymetric Chart of the Southern Ocean Version 2', Scientific data, 9. Available at: 10.1038/s41597-022-01366-7
