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Over the past 60 years, scientists have strived to understand the past, present and future of the Antarctic Ice Sheet. One of the key components of this research has been the mapping of Antarctic bed topography and ice thickness parameters that are crucial for modelling ice flow and hence for predicting future ice loss and ensuing sea level rise. Supported by the Scientific Committee on Antarctic Research (SCAR), the Bedmap3 Action Group aims not only to produce new gridded maps of ice thickness and bed topography for the international scientific community, but also to standardize and make available all the geophysical survey data points used in producing the Bedmap gridded products. Here, we document the survey data used in the latest iteration, Bedmap3, incorporating and adding to all of the datasets previously used for Bedmap1 and Bedmap2, including ice-bed, surface and thickness point data from all Antarctic geophysical campaigns since the 1950s. More specifically, we describe the processes used to standardize and make these and future survey and gridded datasets accessible under the 'Findable, Accessible, Interoperable and Reusable' (FAIR) data principles. With the goals to make the gridding process reproducible and to allow scientists to re-use the data freely for their own analysis, we introduce the new SCAR Bedmap Data Portal (bedmap.scar.org, last access: 18 October 2022) created to provide unprecedented open access to these important datasets, through a user-friendly webmap interface. We believe that this data release will be a valuable asset to Antarctic research and will greatly extend the life cycle of the data held within it. [ABSTRACT FROM AUTHOR]

Prospective FAIR bathymetry data archiving in PANGAEA- Data Publisher for Earth & Environmental Science Daniel Damaske, MARUM / PANGAEA (Germany), ddamaske@marum.de Janine Felden, Alfred-Wegener-Institute / PANGAEA (Germany), janine.felden@awi.de Frank Oliver Glöckner, Alfred-Wegener-Institute / MARUM/ PANGAEA (Germany), frank.oliver.gloeckner@awi.de Gauvain Wiemer, DAM (Germany), wiemer@allianz-meeresforschung.de on behalf of the DAM and PANGAEA Teams Objective The PANGAEA data information system (https://www.pangaea.de/) is worldwide one of the leading data repositories for Earth & Environmental data hosted by the Alfred-WegenerInstitute, Helmholtz Centre for Polar and Marine Research (AWI), and the Center for Marine Environmental Sciences (MARUM), University of Bremen. PANGAEA already holds a few hundreds of bathymetry raw datasets containing multi-beam echosounder raw data from entire scientific cruises and as well as processed datasets consisting of vector, ASCII and raster data. [Extracted from the article]

The article presents the bathymetry study conducted by the research ship Polarstern during its 82nd expedition in the Weddell Sea region in late 2013. It cites the International Bathymetric Chart of the Southern Ocean (IBCSO) data in the Filchner Trough in the area. In the study, the Atlas Hydrosweep DS3 multibeam echosounder was used to measure the seafloor. The data collected in the study will be added to the IBSCO and General Bathymetric Chart of the Ocean (GEBCO) data.

The article discusses the bathymetric, seismic and marine geological pre-site survey for the 625-Full Cenozoic Southern Ocean Pacific (CESOP) Integrated Ocean Drilling Platform (IODP) proposal, which was part of the ANT-XXVI/2 expedition that started from the bunker pier Cabo Negro near the town of Punta Arenas in Chile on November 27, 2009. It says that a very precise timing system is required by seismic data acquisition because seismic sources and recording systems need to be synchronized. The controversially discussed questions that have implications on past global climate, cryosphere, ocean and biota evolution are also discussed.

The article presents a study on the bathymetry in the South Pacific and the Southern Ocean during the ANT-XXVI/2 expedition that started from the bunker pier Cabo Negro near the town of Punta Arenas in Chile on November 27, 2009. The bathymetry group used the HYDROSWEEP DS2 multi-beam system from ATLAS Hydrographic to organize and monitor the acquisition of swath soundings throughout the expedition. They also performed deep-sea tests to demonstrate that an accuracy of 1 percent of the water depth (WD) can be achieved for the outer beams and 0.5 percent for the center beams.

The article offers information on a project that aims to enlarge the geophysical database along the East Greenland margin to allow comparison of both margin structures. The Euromargins programme provided the fund for the first part of the investigations in 2003. Another aim of the project is to continue the research of the first phase. The project seeks to answer various questions including the condition of the crustal structure between Shannon Island and the Greenland Fracture Zone and the sedimentary structure of the East Greenland shelf between 75 and 79 degrees North.

The article illustrates and summarizes the operation of the swath sonar system during the entire cruise of the AISTEK III expedition. It describes how the sound speed in water was measured, how data were acquired and processed, and the swath sonar system. It outlines the characteristics of the Kongsberg EM 302 Multibeam Echo Sounder system. It describes the operation of the Swath sonar system and provides the details of how data are logged, how runtime parameters are adjusted, and how data are cleaned.