Processed bathymetry data (GeoTIFF grid format) for the Tuzo Wilson Seamount Complex and southwest coast of Haida Gwaii (PAC2025-M14, 2025)

This data set contains processed bathymetry grids generated from Kongsberg EM304 MKII multibeam data collected over the Tuzo Wilson Seamount Complex and southwest coast of Haida Gwaii during the September 2025 Canpac Valour survey PAC2025-M14. For the bathymetry survey, a mounting pole holding the transducer was installed on the starboard side of the Canpac Valour vessel. Real-time position, roll, pitch, heave, and heading were corrected using a Kongsberg Seatex Seapath 380-5+ system. To characterize the water column, sound velocity profiles were collected at regular intervals with a Valeport Midas CTD. The multibeam data files were processed using Hypack 2025 which was also used to generate the final bathymetric grids and maps. The grids presented here are in GeoTIFF grid format projected in NAD83-UTM9. The grid resolution is either 15m or 25m, as indicated in the file name. The data set was generated as part of the NorthEast Pacific Deap-sea Exploration Project 2025 (NEPDEP2025).