EGU22-10268
https://doi.org/10.5194/egusphere-egu22-10268
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

A New Toolset for Multiscale Seabed Characterization

Alexander Ilich1, Benjamin Misiuk2, Vincent Lecours3, and Steven Murawski1
Alexander Ilich et al.
  • 1University of South Florida; College of Marine Science; United States of America
  • 2Dalhousie University; Department of Oceanography; Canada
  • 3University of Florida; School of Forest, Fisheries, and Geomatics Sciences; United States of America

Terrain attributes are increasingly used in seabed mapping to describe the shape of the seabed. In recent years, many calls have been made to move seabed mapping practices towards multiscale characterization to better capture the natural geomorphic patterns found at different spatial scales. However, the community of practice lacks computationally efficient, user-friendly, and open-source tools to implement multiscale analyses, preventing multiscale analyses from gaining traction for seabed mapping and characterization. Here we present a new R package that enables the calculation of multiple terrain attributes like slope, curvature, and rugosity from bathymetric data. The user-friendly package allows for a repeatable and well-documented workflow that can be run using open-source tools. We also introduce a new measure of rugosity that ensures decoupling from slope. Examples of the performance of the package, including the new rugosity metric, will be presented using bathymetric datasets presenting different characteristics.

How to cite: Ilich, A., Misiuk, B., Lecours, V., and Murawski, S.: A New Toolset for Multiscale Seabed Characterization, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-10268, https://doi.org/10.5194/egusphere-egu22-10268, 2022.

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