PANGAEA_995440 Multibeam bathymetry processed data (Atlas Hydrosweep DS 3 echo sounder entire dataset) of RV POLARSTERN during cruise PS154/1, Atlantic Ocean Cornish, Natalie; Baumbusch, Clara; Dreutter, Simon; Dorschel, Boris Multibeam bathymetry processed data (Atlas Hydrosweep DS 3 echo sounder entire dataset) of RV POLARSTERN during cruise PS154/1, Atlantic Ocean 2026-06-12 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.995440 Investigator Natalie Cornish natalie.cornish@awi.de Earth Science Binary Object Binary Object (Media Type) Binary Object (File Size) File content Raster cell size Vertical datum Horizontal datum Horizontal datum, projection stored in file Longitude, westbound Longitude, eastbound Latitude, southbound Latitude, northbound Number of depth soundings Area Elevation, minimum Elevation, maximum geoscientificInformation Atlantic Ocean Bathymetry Hydrosweep DS3 Multibeam Multibeam echosounder Polarstern PS154/1 PS154/1_0_Underway-4 Polarstern 2026-04-12 2026-04-30 Complete -48.554179 16.627771 -55.136314 -25.220777 BATHY-LTO BATHYmetric Long-Term Observations during Expeditions with RV Polarstern DataHub DataHub Earth and Environment of the Helmholtz Association unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 475 data points text/tab-separated-values Egbert, Gary D; Erofeeva, Svetlana Y (2002): Efficient Inverse Modeling of Barotropic Ocean Tides. Journal of Atmospheric and Oceanic Technology, 19(2), 183-204, https://doi.org/10.1175/1520-0426(2002)019%3C0183:EIMOBO%3E2.0.CO;2 Reagan, James R; Boyer, Tim P; García, Hernán E; Locarnini, Ricardo A; Baranova, Olga K; Bouchard, Courtney; Cross, Scott L; Mishonov, Alexey V; Paver, Christopher R; Seidov, Dan; Wang, Zhankun; Dukhovskoy, Dmitry (2023): World Ocean Atlas 2023 [dataset]. NOAA National Centers for Environmental Information, https://doi.org/10.25921/VA26-HV25

Multibeam data were collected during RV Polarstern cruise PS154/1 (2026-04-11 to 2026-04-30). 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 and World Ocean Atlas 23 (https://www.ncei.noaa.gov/archive/accession/NCEI-WOA23), tidal correction with TPXO9_atlas_v5 (https://www.tpxo.net), 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 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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995440"! ** These data should not be used for navigational purposes.

http://vocab.nerc.ac.uk/collection/V12/current/L11/ Vertical datum https://desktop.arcgis.com/en/arcmap/10.3/manage-data/raster-and-images/cell-size-of-raster-data.htm Raster cell size https://doi.org/10.1175/1520-0426(2002)019%3C0183:EIMOBO%3E2.0.CO;2 Efficient Inverse Modeling of Barotropic Ocean Tides https://doi.org/10.17815/jlsrf-3-163 Polarstern https://doi.org/10.25921/VA26-HV25 World Ocean Atlas 2023 https://en.wikipedia.org/wiki/Depth_sounding Number of depth soundings https://gisgeography.com/horizontal-datum/ Horizontal datum https://gisgeography.com/horizontal-datum/ Horizontal datum, projection stored in file https://helmholtz.software/projects/datahub DataHub DIF 9.4 2026-06-12 2026-06-17