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Filter Total Items: 1414
Projections of multiple climate-related coastal hazards for the US Southeast Atlantic Projections of multiple climate-related coastal hazards for the US Southeast Atlantic
Faced with accelerating sea level rise and changing ocean storm conditions, coastal communities require comprehensive assessments of climate-driven hazard impacts to inform adaptation measures. Previous studies have focused on flooding but rarely on other climate-related coastal hazards, such as subsidence, beach erosion and groundwater. Here, we project societal exposure to multiple...
Authors
Patrick Barnard, Kevin Befus, Jeffrey Danielson, Anita Engelstad, Li Erikson, Amy Foxgrover, Maya Hayden, Daniel Hoover, Tim Leijnse, Chris Massey, Robert McCall, Norberto Nadal-Caraballo, Kees Nederhoff, Andrea C. O'Neill, Kai Parker, Manoochehr Shirzaei, Leonard Ohenhen, Peter W Swarzenski, Jennifer Thomas, Maarten van Ormondt, Sean Vitousek, Killian Vos, Nathan Wood, Jeanne Jones, Jamie Jones
Scalable, data-assimilated models predict large-scale shoreline response to waves and sea-level rise Scalable, data-assimilated models predict large-scale shoreline response to waves and sea-level rise
Coastal change is a complex combination of multi-scale processes (e.g., wave-driven cross-shore and longshore transport; dune, bluff, and cliff erosion; overwash; fluvial and inlet sediment supply; and sea-level-driven recession). Historical sea-level-driven coastal recession on open ocean coasts is often outpaced by wave-driven change. However, future sea-level-driven coastal recession...
Authors
Sean Vitousek, Kilian Vos, Kristen Splinter, Kai Parker, Andrea C. O'Neill, Amy Foxgrover, Maya Hayden, Jennifer Thomas, Li Erikson, Patrick Barnard
Neogene hydrothermal Fe- and Mn-oxide mineralization of Paleozoic continental rocks, Amerasia Basin, Arctic Ocean Neogene hydrothermal Fe- and Mn-oxide mineralization of Paleozoic continental rocks, Amerasia Basin, Arctic Ocean
Rocks dredged from water depths of 1,605, 2,500, 3,300, and 3,400 m in the Arctic Ocean included Paleozoic continental rocks pervasively mineralized during the Neogene by hydrothermal Fe and Mn oxides. Samples were recovered in three dredge hauls from the Chukchi Borderland and one from Mendeleev Ridge north of Alaska and eastern Siberia, respectively. Many of the rocks were so...
Authors
James Hein, Kira Mizell, Amy Gartman
Exploring the dynamic interactions between the Southern San Andreas Fault and a normal fault under the Salton Sea Exploring the dynamic interactions between the Southern San Andreas Fault and a normal fault under the Salton Sea
We investigate the dynamic interactions between the Southern San Andreas Fault (SSAF) and a proximal normal fault (NF) beneath the Salton Sea in southern California. The NF, positioned near the SSAF terminus at Bombay Beach, exhibits 11–15 displacement events across 14 stratigraphic sequences, with a range of 0.2–1.4 m of vertical offset since ∼2–3 ka. Notably, four of these events may...
Authors
Luis Ivan Bazan Flores, Christodoulos Kyriakopoulos, David D. Oglesby, Aron J. Meltzner, Thomas K. Rockwell, John M. Fletcher, Daniel S. Brothers
Deep-ocean macrofaunal assemblages on ferromanganese and phosphorite-rich substrates in the Southern California Borderland Deep-ocean macrofaunal assemblages on ferromanganese and phosphorite-rich substrates in the Southern California Borderland
Mineral-rich hardgrounds, such as ferromanganese (FeMn) crusts and phosphorites, occur on seamounts and continental margins, gaining attention for their resource potential due to their enrichment in valuable metals in some regions. This study focuses on the Southern California Borderland (SCB), an area characterized by uneven and heterogeneous topography featuring FeMn crusts...
Authors
Michelle Guraieb, Guillermo F Mendoza, Kira Mizell, Gregory Rouse, R.A. McCarthy, Olivia Pereira, Lisa Levin
The projected exposure and response of a natural barrier island system to climate-driven coastal hazards The projected exposure and response of a natural barrier island system to climate-driven coastal hazards
Accelerating sea level rise (SLR) and changing storm patterns will increasingly expose barrier islands to coastal hazards, including flooding, erosion, and rising groundwater tables. We assess the exposure of Cape Lookout National Seashore, a barrier island system in North Carolina (USA), to projected SLR and storm hazards over the twenty-first century. We estimate that with 0.5 m of SLR...
Authors
Jennifer Thomas, Patrick Barnard, Sean Vitousek, Li Erikson, Kai Parker, Kees Nederhoff, Kevin Befus, Manoochehr Shirzaei
Rapid simulation of wave runup on morphologically diverse, reef-lined coasts with the BEWARE-2 (Broad-range Estimator of Wave Attack in Reef Environments) meta-process model Rapid simulation of wave runup on morphologically diverse, reef-lined coasts with the BEWARE-2 (Broad-range Estimator of Wave Attack in Reef Environments) meta-process model
Low-lying, tropical, coral-reef-lined coastlines are becoming increasingly vulnerable to wave-driven flooding due to population growth, coral reef degradation, and sea-level rise. Early-warning systems (EWSs) are needed to enable coastal authorities to issue timely alerts and coordinate preparedness and evacuation measures for their coastal communities. At longer timescales, risk...
Authors
Robert McCall, Curt Storlazzi, Floortje Roelvink, Stuart Pearson, Roel de Goede, Jose Antolinez
Correction to A regime shift in sediment export from a coastal watershed during a record wet winter, California: Implications for landscape response to hydroclimatic extremes Correction to A regime shift in sediment export from a coastal watershed during a record wet winter, California: Implications for landscape response to hydroclimatic extremes
In the referenced article, the authors would like to correct text in the first paragraph on page 2571, Figure 9 and its caption. The changes reflect an error made in the processing of the rainfall intensity-duration data used to compare storms to published debris flow triggering thresholds. The correctly processed data does not change the interpretations made in the paper but does...
Authors
Amy East, Andrew Stevens, Andrew C. Ritchie, Patrick Barnard, Pamela L. Campbell‐Swarzenski, Brian Collins, Christopher H. Conaway
A dataset of two-dimensional XBeach model set-up files for northern California A dataset of two-dimensional XBeach model set-up files for northern California
Here, we describe a dataset of two-dimensional (2D) XBeach model files that were developed for the Coastal Storm Modeling System (CoSMoS) in northern California as an update to an earlier CoSMoS implementation that relied on one-dimensional (1D) modeling methods. We provide details on the data and their application, such that they might be useful to end-users for other coastal studies...
Authors
Andrea C. O'Neill, Cornelis Nederhoff, Li Erikson, Jennifer Thomas, Patrick Barnard
Transdisciplinary research supports the sustainability of barrier island systems threatened by climate change Transdisciplinary research supports the sustainability of barrier island systems threatened by climate change
The management of developed barrier islands is often piece-meal and reactionary despite the complex, dynamic nature of these systems, and sustainable practices will become increasingly difficult due to heightened pressures of climate change. Adaptation actions, including nature-based solutions, need to be thoroughly evaluated prior to implementation to understand system-wide impacts and...
Authors
Patrick Barnard, Davina Passeri
Climate controls on longshore sediment transport and coastal morphology adjacent to engineered inlets Climate controls on longshore sediment transport and coastal morphology adjacent to engineered inlets
Coastal jetties are commonly used throughout the world to stabilize channels and improve navigation through inlets. These engineered structures form artificial boundaries to littoral cells by reducing wave-driven longshore sediment transport across inlet entrances. Consequently, beaches adjacent to engineered inlets are subject to large gradients in longshore transport rates and are...
Authors
Andrew Stevens, Peter Ruggiero, Kai Parker, Sean Vitousek, Guy Gelfenbaum, George Kaminsky
Shifting sands: The influence of coral reefs on shoreline erosion from short-term storm protection to long-term disequilibrium Shifting sands: The influence of coral reefs on shoreline erosion from short-term storm protection to long-term disequilibrium
Climate change is exacerbating shoreline erosion and flooding, posing significant risks to coastal communities. Although traditional coastal defenses such as seawalls, dykes, and breakwaters offer protection from these hazards, their high environmental and economic costs are driving interest in cost-competitive nature-based solutions. Coral reef restoration is a nature-based solution...
Authors
Stephan Bitterwolf, Borja Reguero, Curt Storlazzi, Michael Beck