Conference Papers
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Sand- and gravel-trapping efficiencies derived for four types of pressure-difference bedload samplers Sand- and gravel-trapping efficiencies derived for four types of pressure-difference bedload samplers
Bedload-trapping efficiencies (coefficients) were derived for four types of pressure-difference bedload samplers at the St. Anthony Falls Laboratory, University of Minnesota during the first two phases of flume experiments in January-March, 2006, referred to as “StreamLab06.” The bedload-sampler research component was part of a series of community-led, large-scale laboratory experiments...
Authors
John Gray, Joel T. Groten, Jonathan A. Czuba, Gregory E. Schwarz, Kyle Strom, Panayiotis Diplas
Changes in sediment transport processes at the Chandeleur Islands, Louisiana in response to storm impact Changes in sediment transport processes at the Chandeleur Islands, Louisiana in response to storm impact
We analyzed elevation changes at the northern Chandeleur Islands, Louisiana, to quantify sediment fluxes and assess sediment transport processes over two time periods (1920 – 2007 and 2007 – 2015). Wave-driven alongshore sediment transport is the predominant fair-weather process, whereas storms transport sediment across the island platform and promote shoreline retreat. Major storm...
Authors
James Flocks, Julie Bernier
How machine learning can improve predictions and provide insight into fluvial sediment transport in Minnesota How machine learning can improve predictions and provide insight into fluvial sediment transport in Minnesota
Understanding fluvial sediment transport is critical to addressing many environmental concerns such as exacerbated flooding, degradation of aquatic habitat, excess nutrients, and the economic challenges of restoring aquatic systems. However, fluvial sediment transport is difficult to understand because of the multitude of factors controlling the potential sources, delivery, mechanics...
Authors
J. William Lund, Joel T. Groten, Diana L. Karwan, Chad Babcock
Barrier islands and spits of northern Alaska: Decadal scale morphological change Barrier islands and spits of northern Alaska: Decadal scale morphological change
Arctic barrier islands and spits are dynamic features influenced by a variety of oceanographic, geologic, and environmental factors. Many serve as habitat and protection for native species and shelter the coast from waves and storms that can flood and erode the adjacent mainland. This paper summarizes results of a study documenting changes to barrier morphology along the North Slope...
Authors
Ann E. Gibbs, Li H. Erikson, Anna I Hamilton
Modeling total water level and coastal change at Pea Island, North Carolina, USA Modeling total water level and coastal change at Pea Island, North Carolina, USA
The DUring Nearshore Event eXperiment (DUNEX) was carried out on Pea Island, North Carolina, USA between September-October 2021. We use a coupled numerical model (Windsurf) to hindcast the evolution of the DUNEX transect and produce a time series of hourly water levels at the shoreline from the model output. In addition to assessing the ability of Windsurf to reproduce TWL, we use model...
Authors
Michael Itzkin, Margaret L. Palmsten, Mark L. Buckley, Christopher R. Sherwood, Jenna A. Brown, Jin-Si R. Over, Peter A. Traykovski
Toward a total water level forecast of the Great Lakes Toward a total water level forecast of the Great Lakes
The combined effect of storm surge and large waves is the main driving mechanism that erodes beaches, inundates low-lying areas, leading to millions of dollars in property damage, loss of natural resources, and lives. The U.S. Geological Survey (USGS) aims to expand the real-time total water level (TWL) forecast provided in the Operational Total Water Level and Coastal Change Forecasts...
Authors
Erdinc Sogut, Alfredo Aretxabaleta, Andrew Ashton, Walter Barnhardt, Kara S. Doran, Margaret L. Palmsten