Coastal and Marine Hazards and Resources Program

Publications

The Coastal and Marine Hazards and Resources Program publications are listed here. Search by topics and by year.

Filter Total Items: 927
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Year Published: 2019

The roles of flow acceleration and deceleration in sediment suspension in the surf zone

Prediction of sediment suspension in the surf zone remains elusive. We explore how suspended sediment concentration at 19 cm above the bed in the mid-surf zone during a storm is influenced by flow acceleration and deceleration. There is a tendency for higher suspended sediment concentrations during onshore flow, with decelerating onshore flows...

Jaffe, Bruce E.; La Selle, Seanpaul
Jaffe, B.E., and La Selle, S., 2019, The roles of flow acceleration and deceleration in sediment suspension in the surf zone: in Wang, P., Rosati, J.D., and Vallee, M., eds., Coastal Sediments 2019, Proceedings of the 9th International Conference: World Scientific, Hackensack, New Jersey, p. 565-576, https://doi.org/10.1142/9789811204487_0050.

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Year Published: 2019

Linking direct measurements of turbidity currents to submarine canyon-floor deposits

Submarine canyons are conduits for episodic and powerful sediment density flows (commonly called turbidity currents) that move globally significant amounts of terrestrial sediment and organic carbon into the deep sea, forming some of the largest sedimentary deposits on Earth. The only record available for most turbidity currents is the deposit...

Maier, Katherine L.; Gales, Jenny; Paull, Charles K.; Rosenberger, Kurt J.; Talling, Peter J.; Simmons, Stephen; Gwiazda, Roberto; McGann, Mary; Cartigny, Matthieu J.B.; Lundsten, Eve M.; Anderson, Krystle; Clare, Michael; Xu, Jingping; Parsons, Daniel; Barry, James P.; Wolfson-Schwher, Monica; Nieminski, Nora M.; Sumner, Esther J

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Year Published: 2019

The risk reduction benefits of the Mesoamerican Reef in Mexico

Coastal development and climate change are dramatically increasing the risks of flooding, erosion, and extreme weather events. Coral reefs and other coastal ecosystems act as natural defenses against coastal hazards, but their degradation increases risk to people and property. Environmental degradation, however, has rarely been quantified as a...

Reguero, Borja G.; Secaira, Fernando; Toimil, Alexandra; Escudero, Mireille; Diaz-Simal, Pedro; Beck, Michael W.; Silva, Rodolfo; Storlazzi, Curt D.; Losada, Iñigo

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Year Published: 2019

Evidence for frequent, large tsunamis spanning locked and creeping parts of the Aleutian megathrust

At the eastern end of the 1957 Andreanof Islands magnitude-8.6 earthquake rupture, Driftwood Bay (Umnak Island) and Stardust Bay (Sedanka Island) lie along presently locked and creeping parts of the Aleutian megathrust, respectively, based on satellite geodesy onshore. Both bays, located 200-km apart, face the Aleutian trench and harbor coastal...

Witter, Robert C.; Briggs, Richard W.; Engelhart, Simon E.; Gelfenbaum, Guy R.; Koehler, Richard D; Nelson, Alan R.; La Selle, Seanpaul; Corbett, Reide; Wallace, Kristi

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Year Published: 2019

Optimizing an inner-continental shelf geologic framework investigation through data repurposing and machine learning

The U.S. Geological Survey (USGS) and the National Oceanic Atmospheric Administration (NOAA) have collected approximately 5,400 km2 of geophysical and hydrographic data on the Atlantic continental shelf between Delaware and Virginia over the past decade and a half. Although originally acquired for different objectives, the comprehensive coverage...

Pendleton, Elizabeth A.; Brothers, Laura L.; Sweeney, Ed

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Year Published: 2019

Relationships between regional coastal land cover distributions and elevation reveal data uncertainty in a sea-level rise impacts model

Understanding land loss or resilience in response to sea-level rise (SLR) requires spatially extensive and continuous datasets to capture landscape variability. We investigate sensitivity and skill of a model that predicts dynamic response likelihood to SLR across the northeastern U.S. by exploring several data inputs and outcomes. Using...

Lentz, Erika E.; Plant, Nathaniel G.; Thieler, E. Robert

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Year Published: 2019

Assessing morphologic controls on atoll island alongshore sediment transport gradients due to future sea-level rise

Atoll islands’ alongshore sediment transport gradients depend on how island and reef morphology affect incident wave energy. It is unclear, though, how potential atoll morphologic configurations influence shoreline erosion and/or accretion patterns, and how these relationships will respond to future sea-level rise (SLR). Schematic atoll models...

Shope, James B.; Storlazzi, Curt D.

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Year Published: 2019

Seismological, geological, and geotechnical engineering aspects of the 2018 MW 6.6 Hokkaido Eastern Iburi earthquake

The 2018 Hokkaido Eastern Iburi MW6.6 earthquake struck the southern coast of the north island of Japan in the early morning (3:08 AM JST) on September 6, 2018. The event had a hypocentral depth of 35 km, centered beneath the port city of Tomakomai. Extremely strong shaking with peak ground acceleration in excess of 0.5 g was felt in the...

Kayen, Robert; Wham, Brad; Grant, Alex R. R. ; Atsushi, Mikami; Anderson, Donald; Zimmaro, Paolo; Wang, Pengfei; Tsai, Yi Tyan; Bachhuber, Jeff; Madugo, Chris L M; Sun, Joseph; Hitchcock, Christopher S.; Motto, Matthew

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Year Published: 2019

Temperature mediates secondary dormancy in resting cysts of Pyrodinium bahamense (Dinophyceae)

High‐biomass blooms of the toxic dinoflagellate Pyrodinium bahamense occur most summers in Tampa Bay, Florida, USA, posing a recurring threat to ecosystem health. Like many dinoflagellates, P. bahamense forms immobile resting cysts that can be deposited on the seafloor—creating a seed bank that can retain the organism within...

Lopez, Cary B.; Karim, Aliza; Murasko, Susan; Marot, Marci E.; Smith, Christopher G.; Corcoran, Alina A.

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Year Published: 2019

Xenon hydrate as an analogue of methane hydrate in geologic systems out of thermodynamic equilibrium

Methane hydrate occurs naturally under pressure and temperature conditions that are not straightforward to replicate experimentally. Xenon has emerged as an attractive laboratory alternative to methane for studying hydrate formation and dissociation in multiphase systems, given that it forms hydrates under milder conditions. However, building...

Fu, Xiaojing; Waite, William F.; Cueto-Felgueroso, Luis; Juanes, Ruben

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Year Published: 2019

Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction

The degradation of coastal habitats, particularly coral reefs, raises risks by increasing the exposure of coastal communities to flooding hazards. The protective services of these natural defenses are not assessed in the same rigorous economic terms as artificial defenses, such as seawalls, and therefore often are not considered in decision making...

Storlazzi, Curt D.; Reguero, Borja G.; Cole, Aaron D.; Lowe, Erik; Shope, James B.; Gibbs, Ann E.; Nickel, Barry A.; McCall, Robert T.; van Dongeren, Ap R.; Beck, Michael W.
Storlazzi, C.D., Reguero, B.G., Cole, A.D., Lowe, E., Shope, J.B., Gibbs, A.E., Nickel, B.A., McCall, R.T., van Dongeren, A.R., and Beck, M.W., 2019, Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction: U.S. Geological Survey Open-File Report 2019–1027, 42 p., https://doi.org/10.3133/ofr20191027.

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Year Published: 2019

The Appalachian Geo-STEM Camp: Learning about geology through experiential adventure recreation

The inaugural Appalachian Geo-STEM Camp (AGC) was a partnership between West Virginia University (WVU), the U.S. Geological Survey (USGS) and the West Virginia Geological and Economic Survey (WVGES). Designed to engage high school students in geoscience-oriented Science, Technology, Engineering and Mathematics (STEM) activities through adventure-...

Burns, Robert; Carter, Mark W.; Brock, John C.; Leveque, Jonas; Bunse, Emily; Palaseanu-Lovejoy, Monica; Guala, Gerald F.; Harlan, Nathan; Blake, Mitchel; Moreira, Jasmine; Britton, Jim; Ashton, Kenny; Nugent, Barnes; Marketti, Michael J.