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Analyzing Uncertainty in Multibeam Bathymetric Data and the Impact on Derived Seafloor Attributes

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Multibeam bathymetric data provide critical information for the modeling of seabed geology and benthic biodiversity. The accuracy of these models depends on the accuracy of the bathymetric data, which contain uncertainties that are stochastic at individual soundings but exhibit a distinct spatial distribution with increasing magnitude from nadir to the outer beams. A restricted spatial randomness method that simulates both the stochastic and spatial characteristics of the data uncertainty performed better than a complete spatial randomness method in analyzing the impact of bathymetric data uncertainty on derived seafloor attributes.
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Keywords: Multibeam bathymetry; seabed mapping; uncertainty

Document Type: Research Article

Affiliations: 1: Institute of Marine and Antarctic Studies, University of Tasmania Hobart, Australia 2: Geoscience Australia, Canberra, Australia

Publication date: 02 January 2016

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