Seismic oceanography data in the Gulf of Cadiz

Area of Science:

• Oceanography
• Geophysics

Background:

• Ocean exploration is difficult due to the ocean's vastness and harsh conditions.
• Traditional sampling methods are often impractical for comprehensive oceanographic studies.

Purpose of the Study:

• To present a dataset of multichannel seismic reflection sections for seismic oceanography.
• To demonstrate the utility of seismic oceanography for high-resolution oceanographic studies.

Main Methods:

• Acquisition of eight multichannel seismic reflection sections (869.39 km total length).
• Processing of seismic data to image weak acoustic reflections in the water column.
• Analysis of raw field records (shot gathers) and post-stack migrated sections.

Main Results:

• Successfully imaged acoustic reflections linked to ocean temperature and salinity variations.
• Provided a comprehensive dataset covering the Gulf of Cadiz and Southwestern Iberian margin.
• Demonstrated the potential of seismic oceanography for detailed oceanographic insights.

Conclusions:

• Seismic oceanography provides valuable, high-resolution data for oceanographic research.
• The presented dataset offers a quasi-synoptic view of a complex oceanographic region.
• This approach complements traditional oceanographic methods.