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Nearshore Waves and Erosion Model
Quantifying the Coastal Protection Benefits Provided by Natural Habitats
Inputs
Coastal Vulnerability Model
Nearshore Waves and Erosion Model
• Know the Environment• Evaluate Scenarios
Coastal Protection Model
Inputs
ozcoast.org
SiteCharacteristics
Storm Characteristics
Management Action
Biotic Features
Coral Cay Conservation
Social Data
Outputs
Inputs
ozcoast.org
SiteCharacteristics
Storm Characteristics
Management Action
Coral Cay Conservation
Social Data
Relative ExposureUSGS
Avoided Eroded & Inundated Area
Short & Long Term Effects of Seawalls
Avoided Property Damage
Avoided Number of People Affected
Outputsa
bBiotic
Features
Nearshore Wave and Erosion Model
oyster reef
Nearshore Wave and Erosion Model
seagrass beds
marshesmangroves coral reefs
sand dunes
Bathymetry/Topography Storm InfoWaves
Wave Model
Bathymetry/Topography Storm InfoWaves
Wave Model
Wave height
Bathymetry/Topography Storm InfoWaves
Wave Model
Wave height
Total Water Level
Bathymetry/Topography Storm InfoWaves
Wave Model
X-Shore Erosion
Wave height
Inundation
Total Water Level
Bathymetry/Topography Storm InfoWaves
Wave Model
X-Shore Erosion
Wave height
Inundation
Total Water Level
Bathymetry/Topography Storm InfoWaves
Wave Model
X-Shore Erosion
Wave height
Inundation
Total Water Level
Bathymetry/Topography Storm InfoWaves
Storm Surge
Storm Model
Wave Model
X-Shore Erosion
Wave height Storm Surge
Inundation
Total Water Level
Storm Model
Bathymetry/Topography Storm InfoWaves
Profile Generator
conceptart.org
Profile Generator
Profile Generator
Profile Generator
Profile Generator
Nearshore Waves and Erosion
S.Maciejewski
Nearshore Waves and Erosion
Nearshore Waves and Erosion
15 hrs Storm
Hmax=3m
T=8s
BotVegbg
x
ECg DDD
8
1
Mendez&Losada, 2004
Run Wave Model
Dean&Bender, 2006
Example Outputs: Seagrass Beds
Wetlands Attenuate Waves
Wetlands Attenuate Waves
interiorclip.com
Wetlands Can Replace Structures
Surge Height Seawall Levee
No VegetationLevee
Vegetation1 m 3.5 m 0.5 m 0 m2 m 4.5 m 2.5 m 1.2 m
interiorclip.com
Wetlands Can Replace Structures
bayareaobserver.com
Protect Marshes
Design WaveH=1m; T=5s
Kt Ht0.70 0.330.70 0.330.71 0.33
Base Width-1Input ParametersBase Width+1
Kt Ht0.65 0.310.70 0.330.78 0.37
Crest Width-1Input ParametersCrest Width+1
Kt Ht0.07 0.030.70 0.330.84 0.40ReefHeight+1
ReefHeight-1Input Parameters
Example Outputs: Oyster Reefs
Oysters to the Rescue
Oysters to the Rescue
