Search Results - "Ashton, Andrew D."

Rollover, drowning, and discontinuous retreat: Distinct modes of barrier response to sea-level rise arising from a simple morphodynamic model by Lorenzo-Trueba, Jorge, Ashton, Andrew D.

“…We construct a simple morphodynamic model to investigate the long‐term dynamic evolution of a coastal barrier system experiencing sea‐level rise. Using a…”
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High-angle wave instability and emergent shoreline shapes: 2. Wave climate analysis and comparisons to nature by Ashton, Andrew D., Murray, A. Brad

“…Recent research has revealed that the plan view evolution of a coast due to gradients in alongshore sediment transport is highly dependant upon the angles at…”
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High-angle wave instability and emergent shoreline shapes: 1. Modeling of sand waves, flying spits, and capes by Ashton, Andrew D., Murray, A. Brad

“…Contrary to traditional findings, the deepwater angle of wave approach strongly affects plan view coastal evolution, giving rise to an antidiffusional “high…”
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Alongshore sediment bypassing as a control on river mouth morphodynamics by Nienhuis, Jaap H., Ashton, Andrew D., Nardin, William, Fagherazzi, Sergio, Giosan, Liviu

“…River mouths, shoreline locations where fluvial and coastal sediments are partitioned via erosion, trapping, and redistribution, are responsible for the…”
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Coastline responses to changing storm patterns by Slott, Jordan M., Murray, A. Brad, Ashton, Andrew D., Crowley, Thomas J.

“…Researchers and coastal managers are pondering how accelerated sea‐level rise and possibly intensified storms will affect shorelines. These issues are most…”
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Labeling Poststorm Coastal Imagery for Machine Learning: Measurement of Interrater Agreement by Goldstein, Evan B., Buscombe, Daniel, Lazarus, Eli D., Mohanty, Somya D., Rafique, Shah Nafis, Anarde, Katherine A., Ashton, Andrew D., Beuzen, Tomas, Castagno, Katherine A., Cohn, Nicholas, Conlin, Matthew P., Ellenson, Ashley, Gillen, Megan, Hovenga, Paige A., Over, Jin‐Si R., Palermo, Rose V., Ratliff, Katherine M., Reeves, Ian R. B., Sanborn, Lily H., Straub, Jessamin A., Taylor, Luke A., Wallace, Elizabeth J., Warrick, Jonathan, Wernette, Phillipe, Williams, Hannah E.

“…Abstract Classifying images using supervised machine learning (ML) relies on labeled training data—classes or text descriptions, for example, associated with…”
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Wave-angle control of delta evolution by Ashton, Andrew D., Giosan, Liviu

“…Wave‐influenced deltas, with large‐scale arcuate shapes and demarcated beach ridge complexes, often display an asymmetrical form about their river channel…”
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discussion of the potential impacts of climate change on the shorelines of the Northeastern USA by Ashton, Andrew D, Donnelly, Jeffrey P, Evans, Rob L

“…An increase in the rate of sea-level rise and potential changes in storminess represent important components of global climate change that will likely affect…”
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Littoral steering of deltaic channels by Nienhuis, Jaap H., Ashton, Andrew D., Giosan, Liviu

“…The typically single-threaded channels on wave-influenced deltas show striking differences in their orientations, with some channels oriented into the incoming…”
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Reconstructing river flows remotely on Earth, Titan, and Mars by Birch, Samuel P D, Parker, Gary, Corlies, Paul, Soderblom, Jason M, Miller, Julia W, Palermo, Rose V, Lora, Juan M, Ashton, Andrew D, Hayes, Alexander G, Perron, J Taylor

“…Alluvial rivers are conveyor belts of fluid and sediment that provide a record of upstream climate and erosion on Earth, Titan, and Mars. However, many of…”
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Increased typhoon activity in the Pacific deep tropics driven by Little Ice Age circulation changes by Bramante, James F., Ford, Murray R., Kench, Paul S., Ashton, Andrew D., Toomey, Michael R., Sullivan, Richard M., Karnauskas, Kristopher B., Ummenhofer, Caroline C., Donnelly, Jeffrey P.

“…The instrumental record reveals that tropical cyclone activity is sensitive to oceanic and atmospheric variability on inter-annual and decadal scales. However,…”
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Exploring shoreface dynamics and a mechanistic explanation for a morphodynamic depth of closure by Ortiz, Alejandra C., Ashton, Andrew D.

“…Using energetics‐based formulations for wave‐driven sediment transport, we develop a robust methodology for estimating the morphodynamic evolution of a…”
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Instability and finite-amplitude self-organization of large-scale coastline shapes by Murray, A. Brad, Ashton, Andrew D.

“…Recent research addresses the formation of patterns on sandy coastlines on alongshore scales that are large compared with the cross-shore extent of active…”
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Equilibrium responses of cliffed coasts to changes in the rate of sea level rise by Ashton, Andrew D., Walkden, Mike J.A., Dickson, Mark E.

“…Basic formulae have long been used to predict the effects of sea-level rise on coastal recession; for instance, the geometric ‘Bruun rule’ (and its…”
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Late Cenozoic sea level and the rise of modern rimmed atolls by Toomey, Michael R., Ashton, Andrew D., Raymo, Maureen E., Perron, J. Taylor

“…Sea-level records from atolls, potentially spanning the Cenozoic, have been largely overlooked, in part because the processes that control atoll form (reef…”
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NEWTS1.0: Numerical model of coastal Erosion by Waves and Transgressive Scarps by Palermo, Rose V, Perron, J. Taylor, Soderblom, Jason M, Birch, Samuel P. D, Hayes, Alexander G, Ashton, Andrew D

“…Models of rocky-coast erosion help us understand the physical phenomena that control coastal morphology and evolution, infer the processes shaping coasts in…”
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Wave reworking of abandoned deltas by Nienhuis, Jaap H., Ashton, Andrew D., Roos, Pieter C., Hulscher, Suzanne J. M. H., Giosan, Liviu

“…River deltas and individual delta lobes frequently face reduction of sediment supply, either from the geologic process of river avulsion or, more recently, due…”
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Large-scale responses of complex-shaped coastlines to local shoreline stabilization and climate change by Slott, Jordan M., Murray, A. Brad, Ashton, Andrew D.

“…When modeling the large‐scale (> km) evolution of coastline morphology, the influence of natural forces is not the only consideration; ongoing direct human…”
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Mechanics and rates of tidal inlet migration: Modeling and application to natural examples by Nienhuis, Jaap H., Ashton, Andrew D.

“…Tidal inlets on barrier coasts can migrate alongshore hundreds of meters per year, often presenting great management and engineering challenges. Here we…”
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Signatures of wave erosion in Titan's coasts by Palermo, Rose V, Ashton, Andrew D, Soderblom, Jason M, Birch, Samuel P D, Hayes, Alexander G, Perron, J Taylor

“…The shorelines of Titan's hydrocarbon seas trace flooded erosional landforms such as river valleys; however, it is unclear whether coastal erosion has…”
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