Multibeam bathymetry raw data (Atlas Hydrosweep DS 2 echo sounder entire dataset) of RV METEOR during cruise M34/3

• Main Authors: Wefer, Gerold, Laser, Bernd, Schmidt, Andrea, Schmieder, Frank
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Bathymetry; Binary Object; Binary Object (File Size); Binary Object (MD5 Hash); Binary Object (Media Type); Comment; DAM_Underway; DAM Underway Research Data; Data file recording distance; Data file recording duration; DATE/TIME; ELEVATION; Event label; Extracted with MB-System; File content; LATITUDE; LONGITUDE; M34/3; M34/3_0_Underway-1; Meteor (1986); Multibeam Echosounder; Number of pings; Ship speed; Start of data file; depth; heading; Start of data file recording; Stop of data file; Stop of data file recording; Swath-mapping system Atlas Hydrosweep DS-2; South Atlantic Ocean
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.943142; https://doi.org/10.1594/PANGAEA.943142

Multibeam bathymetry raw data using the ship's own Atlas Hydrographic Hydrosweep DS 2 multibeam echo sounder was alomst continuously recorded during RV METEOR cruise M34/3. Data was recorded on 18 days between 1996-02-22 and 1996-03-15. This dataset contains a survey in the South Atlantic Ocean. The approximate average depth of the entire dataset is around 4500m. The data are archived at the Federal Maritime and Hydrographic Agency of Germany (Bundesamt für Seeschifffahrt und Hydrographie, BSH) and provided to PANGAEA database for data curation and publication. No ancillary sound velocity profiles (SVP) files from the cruise are archived at the BSH, thus no SVP files are added to this dataset. Data analysis of the multibeam raw data revealed that SVP has not 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, D. W., and D. N. Chayes, MB-System: Mapping the Seafloor, http://www.mbari.org/products/research-software/mb-system/, 2023).