Raw multibeam bathymetry data were collected aboard RV METEOR during cruise M189 using a Kongsberg EM 122 multibeam echosounder. The expedition took place during 16.04.2023-13.05.2023 from Walvis Bay to Walvis Bay (Namibia) in the Central and Southern Atlantic Ocean.The main objective of M189 was to measure the variability of the circulation and the coastal upwelling off Angola and Namibia.Data were recorded within the Namibia and Angola EEZ. Sound velocity profiles (SVP) were applied on the data for calibration. Please see environmental data and the cruise report for details. The data are unprocessed and can therefore contain incorrect depth measurements (artifacts) if not further processed. Note that refraction errors may occur when no proper SVP is applied. Acquisition and provision of the data are part of the DAM Underway Project and published according to the FAIR principles.

These data should not be used for navigational purposes.