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IBCSO Expert Group Report 2022

International Bathymetric Chart of the Southern Ocean (IBCSO) 2020-22 Report

Expert Group of the Geosciences Group

Report Author: Boris Dorschel (Germany)

Summary of activities from 2020-22

The main achievement during the reporting period was the publication of the second version of IBCSO in the Scientific Data. All associated data set (e.g. a digital chart, digital terrain models with and without the Antarctic ice sheet and an RGB version of the map) are publically available for download. Furthermore, IBCSO as part of the Nippon Foundation – GEBCO Seabed 2030 Project provided the area south of 50°S for the General Bathymetric chart of the Oceans (GEBCO) grid releases 2020, 2021 and 2022.

In parallel, bathymetric data sets were continuously added to the IBCSO database. New data were acquired during the expeditions PS124 and PS128 with RV Polarstern.

IBCSO / Seabed 2030 Regional Centre – Southern Ocean held the 2021 Arctic Antarctic North Pacific Mapping Meeting (virtual) attended the 2022 Arctic Antarctic North Pacific Mapping Meeting in person in Stockholm Sweden, 21 – 24 March 2022. Progress of IBCSO was reported at the 18th Hydrographic Commission on Antarctica Conference, Berlin Germany 24 – 26 May 2022.

Now, work on IBCSO v3 is ongoing.