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Multibeam bathymetry raw data (Kongsberg EM 122 entire dataset) of RV MARIA S. MERIAN during cruise MSM101

Name: Multibeam bathymetry raw data (Kongsberg EM 122 entire dataset) of RV MARIA S. MERIAN during cruise MSM101
Published: 2021-06-15
Keywords: multibeam bathymetry, seafloor mapping, North Atlantic, sound speed profile, refractive error, Kongsberg EM122, RV Maria S. Merian

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Year: 2021

Type: dataset

Abstract: Multibeam bathymetry raw data using the ship's own Kongsberg EM 122 multibeam echosounder was almost continuously recorded during RV MARIA S. MERIAN cruise MSM101. Data was recorded on 32 days between 2021-06-15 and 2021-07-16. This dataset contains mostly transit data in the North Atlantic Ocean. The approximate average depth of the entire dataset is around 3700m, ranging from 5271m to 40m. Ancillary sound velocity profiles (SVP) files from the cruise are added to this dataset. Data analysis of the multibeam raw data revealed that SVP has been changed during the survey. This publication is conducted within the efforts of the German Marine Research Alliance in the core area 'Data management and Digitalization' (Deutsche Allianz Meeresforschung, DAM). Data are unprocessed and therefore contains incorrect depth measurements (artifacts) without further processing. Note that refraction errors can be expected due to the lack of proper SVP. Overall, it appears that the data quality is rather good since the gridded hillshade data showed relatively few obstacles. Data can be processed e.g. with the open source software package MB-System (Caress et al. 2024, https://doi.org/10.5281/zenodo.6302801).

Source: Publishing Network for Geoscientific and Environmental Data (PANGAEA) (Alfred Wegener Institute for Polar and Marine Research)

DOI: 10.1594/pangaea.993545