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|CSDMS meeting abstract presentation=Seasonal seagrass growth and senescence exert a strong influence on shallow coastal environments. We applied a hydrodynamic and sediment transport Delft3D model that included coupled effects of seagrass on flow, waves, and sediment resuspension in a shallow coastal bay to quantify seasonal seagrass effects on bay dynamics. Simulation results show that seagrass meadows significantly attenuated flow (60%) and waves (20%) and reduced suspended sediment concentration (85%) during the growing season. Although low-densities of seagrass in winter had limited effects on flow and wave attenuation, small changes in winter seagrass density could alter the annual sediment budget of these seagrass ecosystems. | |CSDMS meeting abstract presentation=Seasonal seagrass growth and senescence exert a strong influence on shallow coastal environments. We applied a hydrodynamic and sediment transport Delft3D model that included coupled effects of seagrass on flow, waves, and sediment resuspension in a shallow coastal bay to quantify seasonal seagrass effects on bay dynamics. Simulation results show that seagrass meadows significantly attenuated flow (60%) and waves (20%) and reduced suspended sediment concentration (85%) during the growing season. Although low-densities of seagrass in winter had limited effects on flow and wave attenuation, small changes in winter seagrass density could alter the annual sediment budget of these seagrass ecosystems. | ||
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Latest revision as of 16:39, 14 July 2020
CSDMS 2020 Webinars
CSDMS Summer Science Series II: Quantifying seasonal seagrass effects on flow and sediment dynamics in a back-barrier bay
Abstract
Seasonal seagrass growth and senescence exert a strong influence on shallow coastal environments. We applied a hydrodynamic and sediment transport Delft3D model that included coupled effects of seagrass on flow, waves, and sediment resuspension in a shallow coastal bay to quantify seasonal seagrass effects on bay dynamics. Simulation results show that seagrass meadows significantly attenuated flow (60%) and waves (20%) and reduced suspended sediment concentration (85%) during the growing season. Although low-densities of seagrass in winter had limited effects on flow and wave attenuation, small changes in winter seagrass density could alter the annual sediment budget of these seagrass ecosystems.
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