Recent Publications - June-July 2020
List of recent USGS publications and data releases based on coastal and marine research.
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Impacts of hydrothermal plume processes on oceanic metal cycles and transport
Sediment transport in a restored, river-influenced Pacific Northwest estuary
Predicting the success of future investments in coastal and estuarine ecosystem restorations is limited by scarce data quantifying sediment budgets and transport processes of prior restorations. This study provides detailed analyses of the hydrodynamics and sediment fluxes of a recently restored U.S. Pacific Northwest estuary, a 61 ha former agricultural area near the mouth of the Stillaguamish Ri
Impacts of sea-level rise on the tidal reach of California coastal rivers using the Coastal Storm Modeling System (CoSMoS)
Hydro-morphological characterization of coral reefs for wave runup prediction
Submarine canyons, slope failures and mass transport processes in southern Cascadia
7700-year persistence of an isolated, free-living coral assemblage in the Galápagos Islands: A model for coral refugia?
Sea-level rise exponentially increases coastal flood frequency
Digging into the geologic record of environmentally driven changes in coral-reef development
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Filter Total Items: 20
Impacts of hydrothermal plume processes on oceanic metal cycles and transport
Chemical, physical and biological processes in hydrothermal plumes control the flux of elements from hydrothermal vents to the global oceans. The timescales of these processes range from less than a second, as the hydrothermal fluid mixes with seawater at the seafloor, to decades, as the plume disperses over thousands of kilometers. Integrating hydrothermal geochemistry throughout the lifetime ofAuthorsAmy Gartman, Alyssa J. FindlaySediment transport in a restored, river-influenced Pacific Northwest estuary
Predicting the success of future investments in coastal and estuarine ecosystem restorations is limited by scarce data quantifying sediment budgets and transport processes of prior restorations. This study provides detailed analyses of the hydrodynamics and sediment fluxes of a recently restored U.S. Pacific Northwest estuary, a 61 ha former agricultural area near the mouth of the Stillaguamish Ri
AuthorsDaniel J. Nowacki, Eric E. GrossmanImpacts of sea-level rise on the tidal reach of California coastal rivers using the Coastal Storm Modeling System (CoSMoS)
In coastal rivers, the interactions between tides and fluvial discharge affect local ecology, sedimentation, river dynamics, river mouth configuration, and the flooding potential in adjacent wetlands and low-lying areas. With sea-level rise, the tidal reach within coastal rivers can expand upstream, impacting river dynamics and increasing flood risk across a much greater area. Rivers along the PacAuthorsAndrea C. O'Neill, Li H. Erikson, Patrick L. BarnardHydro-morphological characterization of coral reefs for wave runup prediction
Many coral reef-lined coasts are low-lying with elevations <4 m above mean sea level. Climate-change-driven sea-level rise, coral reef degradation, and changes in storm wave climate will lead to greater occurrence and impacts of wave-driven flooding. This poses a significant threat to their coastal communities. While greatly at risk, the complex hydrodynamics and bathymetry of reef-lined coasts maAuthorsFred Scott, Jose A. A. Antolinez, Robert T. McCall, Curt D. Storlazzi, Ad Reiners, Stuart PearsonSubmarine canyons, slope failures and mass transport processes in southern Cascadia
The marine turbidite record along the southern Cascadia Subduction Zone has been used to interpret paleoseismicity and suggest a shorter recurrence interval for large (>M7) earthquakes along this portion of the margin; however, the sources and pathways of these turbidity flows are poorly constrained. We examine the spatial distribution of sediment storage, downslope transport, and slope failures aAuthorsJenna C. Hill, Janet Watt, Daniel S. Brothers, Jared W. Kluesner7700-year persistence of an isolated, free-living coral assemblage in the Galápagos Islands: A model for coral refugia?
In an eastern-Pacific coral assemblage at Devil’s Crown, Galápagos Islands, Ecuador, two coral species, Psammocora stellata and Cycloseris (Diaseris) distorta, form dense populations of unattached colonies on sand and rubble substrata. In the Galápagos, living C. (D.) distorta is found only at this single site, whereas populations of P. stellata are found throughout the archipelago. Six cores datiAuthorsJoshua Feingold, Bernhard Reigl, Katie Hendrickson, Lauren Toth, Hai Cheng, R. Lawrence Edwards, Richard B. AronsonSea-level rise exponentially increases coastal flood frequency
Sea-level rise will radically redefine the coastline of the 21st century. For many coastal regions, projections of global sea-level rise by the year 2100 (e.g., 0.5–2 meters) are comparable in magnitude to today’s extreme but short-lived increases in water level due to storms. Thus, the 21st century will see significant changes to coastal flooding regimes (where present-day, extreme-but-rare eventAuthorsMohsen Taherkhani, Sean Vitousek, Patrick L. Barnard, L Neil Frazer, Tiffany Anderson, Charles FletcherDigging into the geologic record of environmentally driven changes in coral-reef development
This lesson uses data based on real-world geological archives to guide students toward understanding how climate and oceanography have impacted coral-reef growth over the last 5000 years. The objective of the lesson is for students to determine the relationship between environmental variability and coral-reef development over millennial timescales. In this activity, students will: 1. CharacterizeAuthorsPhilip M. Gravinese, Richard B. Aronson, Lauren Toth
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