Modeling the Morphodynamics of Coastal Responses to Extreme Events: What Shape Are We In?
Abstract
This review focuses on recent advances in process-based numerical models of the impact of extreme storms on sandy coasts. Driven by larger-scale models of meteorology and hydrodynamics, these models simulate morphodynamics across the Sallenger storm-impact scale, including swash,collision, overwash, and inundation. Models are becoming both wider (as more processes are added) and deeper (as detailed physics replaces earlier parameterizations). Algorithms for wave-induced flows and sediment transport under shoaling waves are among the recent developments. Community and open-source models have become the norm. Observations of initial conditions (topography, land cover, and sediment characteristics) have become more detailed, and improvements in tropical cyclone and wave models provide forcing (winds, waves, surge, and upland flow) that is better resolved and more accurate, yielding commensurate improvements in model skill. We foresee that future storm-impact models will increasingly resolve individual waves, apply data assimilation, and be used in ensemble modeling modes to predict uncertainties.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 03, 2022
- Source ID
- 10.1146/annurev-marine-032221-090215
Entities
People
- A. Penko
- Ap van Dongeren
- Christie Hegermiller
- Christopher R. Sherwood
- Dano Roelvink
- James D. Doyle
- Jay Veeramony
- John C. Warner
- Maitane Olabarrieta
- Marlies Van Der Lugt
- Tarandeep S. Kalra
- Tian-jian Hsu
- Yashar Rafati
Organizations
- Delft University of Technology
- Deltares
- IHE Delft Institute for Water Education
- United States Naval Research Laboratory
- University of Delaware
- University of Florida