Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany.
School of Environment, Faculty of Science, University of Auckland, Auckland, New Zealand.
Sci Data. 2022 Jun 7;9(1):275. doi: 10.1038/s41597-022-01366-7.
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.
环绕南极洲的南大洋是一系列具有全球影响的气候和海洋过程的关键区域，其特点是生物生产力和生物多样性高。自 2013 年以来，国际南大洋测深图（IBCSO）一直是南纬 60°以南南大洋最全面的测深图编目。最近，IBCSO 项目与日本 Nippon 基金会 - GEBCO 海底 2030 项目合作，支持 2030 年绘制世界海洋地图的目标。新数据集启动了 IBCSO 的第二个版本（IBCSO v2）。该版本扩展到南纬 50°（覆盖的海底面积大约是前一版本的 2.4 倍），包括南极环极流和南极环极锋系统的门户。由于多波束数据覆盖范围的增加，IBCSO v2 大大提高了南大洋海底的整体代表性，并更详细地解决了许多海底地貌。这使得 IBCSO v2 成为南纬 50°以南地区最权威的海底地图。
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