The Importance of Storm Surge for Sediment Delivery to Microtidal Marshes

نویسندگان

چکیده

Storm surge has the potential to significantly increase suspended sediment flux microtidal marshes. However, overall effects of storm on marsh deposition have not been well quantified, with most modeling studies focusing regular (astronomical) tidal flooding. Here we applied Delft3D model a bay-marsh complex in Hog Bay, Virginia quantify contributions deposition. We validated using spatially distributed hydrodynamic and data collected from site ran simulations under different conditions with/without storm-driven water level changes. Our results show that episodic events occurred 5% time at our study site, but contributed 40% during 2009–2020. illustrate while wind-driven waves control resuspension flats, storms was largely determined by inundation associated levels. A moderate event can double marshes around bay deliver more interior compared include wind variations Simulations response varying magnitude intensity reveal total increased linearly intensity, suggesting future changes and/or frequency would significant implications for supply site.

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ژورنال

عنوان ژورنال: Journal Of Geophysical Research: Earth Surface

سال: 2022

ISSN: ['2169-9011', '2169-9003']

DOI: https://doi.org/10.1029/2022jf006612