TY - JOUR
T1 - Modeling the Morphodynamics of Coastal Responses to Extreme Events
T2 - What Shape Are We In?
AU - Sherwood, Christopher R.
AU - Van Dongeren, Ap
AU - Doyle, James
AU - Hegermiller, Christie A.
AU - Hsu, Tian-Jian
AU - Kalra, Tarandeep S.
AU - Olabarrieta, Maitane
AU - Roelvink, Dano
AU - van der Lugt, Marlies
AU - More Authors, null
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
KW - coastal modeling
KW - Coastal morphodynamics
KW - extreme storms
KW - sandy coasts
KW - sediment transport
KW - waves
UR - http://www.scopus.com/inward/record.url?scp=85116041700&partnerID=8YFLogxK
U2 - 10.1146/annurev-marine-032221-090215
DO - 10.1146/annurev-marine-032221-090215
M3 - Review article
AN - SCOPUS:85116041700
SN - 1941-1405
VL - 14
SP - 457
EP - 492
JO - Annual Review of Marine Science
JF - Annual Review of Marine Science
ER -