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Title Long-term observations of daily bottom temperatures on the Prince Edward Island shelf at M1 (April 2024 - April 2025)
Project South Atlantic Meridional Overturning Circulation (SAMOC-SA)
Authors

Lamont, Tarron
Department of Forestry, Fisheries and the Environment; role: Marine Scientist

van den Berg, Marcel
Department of Forestry, Fisheries and the Environment; role: Marine Scientific Technician

Publisher Department of Forestry, Fisheries and the Environment (2025)
Contributors

Contact Person: van den Berg, Marcel
Department of Forestry, Fisheries and the Environment; role: Marine Scientific Technician; email: Mvdberg@dffe.gov.za

Abstract Here we present processed daily bottom temperature from an ADCP at location M1 (46.772°S; 37.898°E) on the Prince Edward Island shelf, between 27 April 2024 and 25 April 2025. 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.
Methods A bottom-mounted, upward-looking, 150 kHz RD Instruments Acoustic Doppler Current Profiler (ADCP) was deployed at location M1 (46.772°S; 37.898°E), on the shelf between Marion Island and Prince Edward Island. A temperature sensor on the instrument measured hourly temperature readings between 27 April 2024 and 25 April 2025, at a depth of 165m. These hourly values were averaged to daily means. Daily values were only generated for days on which there were 75% or more hourly readings.
Data
Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Temporal extent 27 Apr 2024 – 25 Apr 2025
Geographic extent

Prince Edward Islands, South Africa

Lat: -46.772
Lon: 37.898

Vertical extent Max: -165 m
Min: -165 m
Keywords Acoustic Doppler Current Profilers , ADCP , INDIAN OCEAN , moorings , SOUTHERN OCEAN , temperatures
Related resources
  • This digital object continues Long-term observations of daily bottom temperatures on the Prince Edward Island shelf at M1 (May 2023 - April 2024) (10.15493/DEA.MIMS.14902024)
  • This digital object is new version of Raw ADCP Data for long-term observations of currents on the Prince Edward Island shelf at M1 (April 2024 - April 2025) (10.15493/DEA.MIMS.15722023)
  • This digital object is part of Long-term moored observations at the Prince Edward Island archipelago (10.15493/DEA.MIMS.26052019)