APPLICATION OF EQUILIBRIUM-BASED SHORELINE EVOLUTION MODELING TO DIVERSE COASTAL ENVIRONMENTS

Abstract

Coastal zones are highly complex and dynamic environments shaped by diverse forcing agents such as waves, nearshore currents, sea levels, storm surges, winds, human interventions, and other oceanographic and sediment supply factors that occur on different spatio-temporal scales. Hence, coastal managers and stakeholders need simplified and practical models in order to estimate future beach morphodynamic changes to face decision-making. The shoreline hindcast under the influence of changing marine conditions has been mostly considered by means of existing robust shoreline evolution models, such as one-line shoreline models, multi-line shoreline models, combined models, and 3D models. All of them require long data series, many calibration parameters and are computationally intensive. This study presents the potential performance of some newly equilibrium-based shoreline evolution models used for daily to multiannual shoreline prediction, in diverse coastal environments (e.g. Jaramillo et al. 2020, 2021a, 2021b).