A method for combing multi-beam bathymetric data to correct the deep sea sub-bottom profile

Area of Science:

• Marine Geophysics
• Oceanographic Surveying
• Seismic Stratigraphy

Background:

• Deep-water ocean exploration integrates sub-bottom profiling and multibeam bathymetry for seafloor topography and sedimentary data.
• Complex deep-ocean topography challenges the accuracy of deep-sea sub-bottom profiles, particularly seafloor reflector tracking and data splicing.
• Accurate seafloor reflecting depth determination is essential for correcting sub-bottom profile data volumes.

Purpose of the Study:

• To address challenges in deep-sea sub-bottom profile accuracy.
• To develop precise positioning and noise suppression methods for deep-water data.
• To enhance the quality and interpretability of deep-water sub-bottom profile data.

Main Methods:

• Integration and synchronization of sub-bottom profiling and multibeam bathymetric surveys.
• Development of a precise positioning method: nearest position pair.
• Implementation of a noise suppression algorithm: inverse distance weighted interpolation.

Main Results:

• Enabled accurate correction of the seafloor's reflecting depth in deep water.
• Facilitated effective splicing of sub-bottom profile data.
• Enhanced the overall quality of deep-water sub-bottom profile data.

Conclusions:

• The developed methods significantly improve the accuracy and continuity of deep-water sub-bottom profiles.
• Enhanced data quality supports comprehensive interpretation of deep-sea sedimentary stratigraphy and topography.
• These advancements are vital for effective deep-water ocean exploration and geological studies.