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Conference Papers

Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

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Observations and morphodynamic modeling of decadal-scale morphologic change in estuaries under sea level rise Observations and morphodynamic modeling of decadal-scale morphologic change in estuaries under sea level rise

Sea level rise is expected to affect coastal areas all around the world, including the estuarine environment. New bathymetry collected in 2014 provided a unique opportunity to test the modeling of Elmilady et al. (2019), who presented a morphodynamic DELFT3D model of San Pablo Bay, California, that included detailed tidal water movement, wind-wave action, sediment transport, and...
Authors
Bruce E. Jaffe, Hesham Elmilady, Mick Van der Wegen, Theresa A. Fregoso

An assessment of Kootenai River channel migration and riparian habitat encroachment An assessment of Kootenai River channel migration and riparian habitat encroachment

The lower reach of the Kootenai River in northern Idaho is dominated by large and actively migrating meander bends. Flow conditions, altered by both upstream flow reductions and by downstream backwater effects, are believed to be important geomorphological drivers throughout the reach. For example, Trout Creek Peninsula, located in an area of active meander migration, is undergoing...
Authors
Taylor Dudunake, Megan Kearney Kenworthy, Matthew Daniels

Examining terrestrial and subterranean sediment sources and transport processes in an urban sewershed with an entirely buried stream network, Washington, D.C., United States Examining terrestrial and subterranean sediment sources and transport processes in an urban sewershed with an entirely buried stream network, Washington, D.C., United States

Excessive fine-grained sediment runoff due to anthropogenic activities is a major environmental concern for watersheds worldwide, especially so for urban areas such as Washington, D.C. Dated grey infrastructure, i.e., the network of buried pipes and reservoirs managing water resources, can amplify existing issues with sediment runoff and associated pollutants. This infrastructure, which...
Authors
Zachary J. Clifton, Allen C. Gellis, Leah Ellen Staub, Matthew J. Cashman, Christopher H. Conaway, Cecilia Lane, David Pilat

Carbonate sediment transport across coral reefs: A comparison of fringing vs. barrier reefs Carbonate sediment transport across coral reefs: A comparison of fringing vs. barrier reefs

Considerable uncertainty remains in the budgets of carbonate sediment on reef lined coasts, particularly with respect to the supply of sediment to a reef flat that is then transported throughout a reef system. In this study, we re-examine two recent studies, one on a barrier reef bounded by channels that incise the reef, and one on a fringing reef without channels. Results indicate that...
Authors
Kurt J. Rosenberger, Curt D. Storlazzi, Olivia M. Cheriton, Mark L. Buckley, Andrew Pomeroy, Ryan Lowe, Jeff Hansen

Contributions to uncertainty in runup forecasts Contributions to uncertainty in runup forecasts

The U.S. Geological Survey (USGS) provides operational forecasts of total water levels (TWL) and coastal change. Uncertainties around forecast TWL are based on the temporal and spatial range of observed beach slopes near the forecast site. This paper investigates other sources of uncertainty that are not accounted for, focusing on four beaches where the USGS has deployed remote cameras...
Authors
Christopher R. Sherwood, Alfredo Aretxabaleta, Peter A. Traykovski, Jin-Si R. Over, David S. Foster, Jennifer L. Miselis, Tim Nelson, Erdinc Sogut

Modeling fluvial sediment plumes: Impacts to coral reefs Modeling fluvial sediment plumes: Impacts to coral reefs

To help guide watershed restoration to reduce the impacts to adjacent coral reefs, the United States Geological Survey and Deltares acquired and analyzed oceanographic and sedimentologic data off 5 West Maui watersheds to calibrate and validate physics-based, numerical hydrodynamic and sediment transport models of the study area. The results indicated sheltered sites are impacted by...
Authors
Curt D. Storlazzi, Luuk van der Heijden, Olivia M. Cheriton, Robert T. McCall, Gundula Winter
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