Processed multi-channel boomer seismic dataset from delta sites in Fiordland, NZ

General Information Processed multi-channel boomer seismic reflection dataset acquired during cruise 25PL1111 aboard RV Polaris II. The dataset comprises seismic profiles collected across delta sites in Bradshaw Sound, Doubtful Sound, and Dusky Sound, Fiordland, Aotearoa New Zealand.The dataset focuses on the morphology and internal architecture of delta systems and includes profiles collected across both modern and submerged delta deposits. Standard multi-channel seismic processing workflows were applied using GLOBE Claritas. Acquisition Parameters Source System: Applied Acoustics Boomer (AA301)Streamer: 24-channel Geometrics MicroEel streamer, 75 m lengthHydrophone spacing: 3.125 mBoomer frequency: 0.5–6 kHzSample interval: 125 μsPositioning: GNSS GPS mounted on the boomer source Navigation Source coordinates are stored in the SEGY headers. X-coordinate: byte 197Y-coordinate: byte 201Coordinate Reference System: NZTM (New Zealand Transverse Mercator)Byte order: Big endian Processing Workflow Standard multi-channel seismic processing workflows were applied to the profiles. Processing steps included: Geometry setup Common Midpoint binning Bandpass filtering Spherical divergence correction Despiking Static corrections Velocity analysis Normal Moveout correction Common Midpoint stacking Swell noise attenuation Predictive deconvolution Time migration The dataset includes: Processed multi-channel boomer seismic reflection profiles The data were acquired during cruise 25PL1111 and form part of ongoing research into the morphology, evolution, and sedimentary architecture of Fiordland delta systems. The dataset supports [Unland et al. in preparation] and associated ongoing research.