Conference Papers
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Wave asymmetry impacts on sediment processes at the nearshore of Fire Island, New York Wave asymmetry impacts on sediment processes at the nearshore of Fire Island, New York
Effects of wave asymmetry on sediment processes and coastal evolution were investigated using a field data set and a numerical model. Field observations at the nearshore of Fire Island, New York revealed sediment fluxes during various wave energy levels. The preliminary results indicate a strong correlation between the wave asymmetry and the onshore bedload fluxes. The model results...
Authors
M. S. Parlak, B. U. Ayhan, John C. Warner, Tarandeep Kalra, Ilgar Safak
Comparing empirical sediment transport modeling approaches in Michigan rivers Comparing empirical sediment transport modeling approaches in Michigan rivers
Excess or limited fluvial sediment transport can contribute to and exacerbate many environmental issues including nutrient loading, aquatic habitat degradation, flooding, channel navigation dredging, dam operation, and stream degradation or aggradation. However, fluvial sediment transport is difficult and expensive to comprehensively characterize because it can vary substantially both...
Authors
Joel T. Groten, Sara B. Levin, Erin N. Coenen, J. William Lund, Bethany Matousek
Regional streamflow drought forecasting in the Colorado River Basin using Deep Neural Network models Regional streamflow drought forecasting in the Colorado River Basin using Deep Neural Network models
Process-based, large-scale (e.g., conterminous United States [CONUS]) hydrologic models have struggled to achieve reliable streamflow drought performance in arid regions and for low-flow periods. Deep learning has recently seen broad implementation in streamflow prediction and forecasting research projects throughout the world with performance often equaling or exceeding that of process...
Authors
Scott Douglas Hamshaw, Phillip J. Goodling, Konrad Hafen, John C. Hammond, Ryan R. McShane, Roy Sando, Apoorva Ramesh Shastry, Caelan E. Simeone, David Watkins, Elaheh White, Michael Wieczorek
Processes controlling coastal erosion along Cape Cod Bay, MA Processes controlling coastal erosion along Cape Cod Bay, MA
Cape Cod Bay, MA, is a semi-enclosed embayment in the northeastern United States, open on the north to the Gulf of Maine. The coastline experiences impacts typically from strong Nor’easter storms that occur in the late fall or winter months, with some sections of this coastline being affected more severely than others. We investigate the processes that cause spatial variability in storm...
Authors
John C. Warner, Laura L. Brothers, Emily A. Himmelstoss, Christopher R. Sherwood, Alfredo Aretxabaleta, David S. Foster, Amy S. Farris
Sediment sources and connectivity linked to hydrologic pathways and geomorphic processes: A conceptual model to specify sediment sources and pathways through space and time Sediment sources and connectivity linked to hydrologic pathways and geomorphic processes: A conceptual model to specify sediment sources and pathways through space and time
Sediment connectivity is a framework for transfer and storage of sediment among different geomorphic compartments across upland and channel network of the catchment sediment cascade. Sediment connectivity and dysconnectivity (i.e., source delivery and storage processes) are linked to the water cycle and hydrologic systems with the associated multiscale interactions with climate, soil...
Authors
Jong Cho, Diana Karwan, Katherine Skalak, James Pizzuto, Max Huffman
Wave-scale observations of sediment resuspension and subsequent transport across a fringing reef flat Wave-scale observations of sediment resuspension and subsequent transport across a fringing reef flat
During a 3-month deployment on a broad, fringing reef flat in Moloka’i, Hawai’i, we observed over 28,000 wave-driven resuspension (WDR) events of coarse-grained sediment in order to identify major factors. These events were short-lived (2-11 s) and distinct from the longer-duration patterns of water-column backscatter. The wave-driven transport of WDR events was onshore, but the net...
Authors
Olivia M. Cheriton, Curt D. Storlazzi, Kurt J. Rosenberger, Joshua B. Logan, Andrew W. M. Pomeroy, Mark L. Buckley, Jeff E. Hansen, Ryan J. Lowe