Multibeam bathymetry processed data (Atlas Hydrosweep DS 3 echo sounder entire dataset) of RV POLARSTERN during cruise PS118, Weddell Sea, Southern Ocean

• Main Authors: Dorschel, Boris, Dreutter, Simon, Lešić, Nina-Marie, Lütjens, Mona, Warnke, Fynn
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Area; Bathymetry; Binary Object; Binary Object (File Size); Binary Object (Media Type); DS3; Elevation; maximum; minimum; File content; Horizontal datum; projection stored in file; Hydrosweep DS3; Latitude; northbound; southbound; Longitude; eastbound; westbound; Multibeam; Number of depth soundings; Polarstern; PS118; PS118_0_underway-14; Raster cell size; Southern Ocean; Swath-mapping system Atlas Hydrosweep DS-3; Vertical datum; Weddell Sea; Berichte zur Polar- und Meeresforschung; Reports on Polar and Marine Research
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.955100; https://doi.org/10.1594/PANGAEA.955100

Multibeam data were collected during RV Polarstern cruise PS118 (2019-02-09 to 2019-04-10). Multibeam sonar system was Atlas Hydrographic Hydrosweep DS 3 multibeam echo sounder. Data are processed with Caris HIPS, including sound velocity correction with SV data from CTDs, UCTDs and World Ocean Atlas 13 (https://doi.org/10.7289/v5f769gt), tidal correction with TPXO9_atlas_v5 (https://www.tpxo.net/global/tpxo9-atlas), and manual cleaning. The soundings are combined in daily files, the format is XYZ ASCII (<Lon> <Lat> <Depth in meters, positive up, relative to mean sea level>). Additional blockmedian grids have been computed with depth dependent cell size to visualize the data. These grids are not meant for scientific analysis or navigation, but for overview purposes only.