Skip to main content
U.S. flag

An official website of the United States government

NEWTS1.0: Numerical model of coastal Erosion by Waves and Transgressive Scarps

April 30, 2024

Models of rocky-coast erosion help us understand the physical phenomena that control coastal morphology and evolution, infer the processes shaping coasts in remote environments, and evaluate risk from natural hazards and future climate change. Existing models, however, are highly complex, are computationally expensive, and depend on many input parameters; this limits our ability to explore planform erosion of rocky coasts over long timescales (thousands to millions of years) and over a range of conditions. In this paper, we present a simplified cellular model of coastline evolution in closed basins through uniform erosion and wave-driven erosion. Uniform erosion is modeled as a constant rate of retreat. Wave erosion is modeled as a function of fetch, the distance over which the wind blows to generate waves, and the angle between the incident wave and the shoreline. This reduced-complexity model can be used to evaluate how a detachment-limited coastal landscape reflects climate, sea-level history, material properties, and the relative influence of different erosional processes.

Publication Year 2024
Title NEWTS1.0: Numerical model of coastal Erosion by Waves and Transgressive Scarps
DOI 10.5194/gmd-17-3433-2024
Authors Rose Elizabeth Palermo, J. Taylor Perron, Jason M. Soderblom, Samuel P. D. Birch, Alexander G. Hayes, Andrew D. Ashton
Publication Type Article
Publication Subtype Journal Article
Series Title Geoscientific Model Development
Index ID 70253582
Record Source USGS Publications Warehouse
USGS Organization St. Petersburg Coastal and Marine Science Center