Title | Raw Expendable Bathythermograph (XBT) casts collected during the 2022 Marion Relief Voyage on the SA Agulhas II Voyage 051, May 2022 |
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Project | Marion Island Relief Voyage |
Authors |
Marcel van den Berg |
Publisher | Department of Forestry, Fisheries and the Environment (2023) |
Contributors |
Contact Person: Marcel van den Berg |
Abstract | Here we present 49 raw Expendable Bathythermograph (XBT) casts collected in the South West Indian Ridge area and along the Crossroads Transect, between 18 May 2022 and 21 May 2022, during the 2022 Marion Relief Voyage on the SA Agulhas II Voyage 051. The South African component of the international South Atlantic Meridional Overturning Circulation project (SAMOC-SA) aims to characterise the time-mean and time-varying components of the SAMOC in the South Atlantic Ocean and monitor the variability of the main Southern Ocean frontal systems associated with the Antarctic Circumpolar Current (ACC), south of Africa. The Crossroads monitoring line, directly under the altimetry track N198, is sampled annually during the Marion Relief voyages, using a combination of Conductivity, Temperature, Depth (CTD) stations and XBT casts, where the XBT casts are done, at set intervals, between CTD stations to complement the CTD data. The 2022 Marion Relief Voyage 051 offered the 10th opportunity to conduct multi-disciplinary, ship-based oceanographic research on board the SA Agulhas II en route to, from, and around, the sub-Antarctic Prince Edward Islands (PEI’s). |
Methods | Sippican WinMK21 Data Acquisition and Post-Processing Software is used for data collection of T7 Deep Blue XBT probes. The data is collected in *.bin format and then converted to *.txt files using software. The *.txt files contain some metadata at the top of file, but not always fully completed by operators. There is no editing done to the data in the acquisition software and so the bottom readings, where the XBT loses signal, have not been removed for the 49 XBT casts. |
Data | |
Temporal extent | 18 May 2022 – 21 May 2022 |
Geographic extent |
Prince Edward Islands, Southern Ocean
North: -34.998 |
Vertical extent |
Max: -950 m Min: -0.5 m |
Keywords | Expendable Bathythermograph, INDIAN OCEAN, SA Agulhas II, SA Agulhas II 051, XBT |
Related resources |
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