Publications
Scientific reports, journal articles, and information products produced by USGS Pacific Coastal and Marine Science Center scientists.
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Sound Waves Newsletter
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Filter Total Items: 1339
Mw 8.6 Sumatran earthquake of 11 April 2012: rare seaward expression of oblique subduction
The magnitude 8.6 and 8.2 earthquakes off northwestern Sumatra on 11 April 2012 generated small tsunami waves that were recorded by stations around the Indian Ocean. Combining differential travel-time modeling of tsunami waves with results from back projection of seismic data reveals a complex source with a significant trench-parallel component. The oblique plate convergence indicates that ~20-50
Authors
Miaki Ishii, Eric Kiser, Eric L. Geist
Quantifying landscape change in an arctic coastal lowland using repeat airborne LiDAR
Increases in air, permafrost, and sea surface temperature, loss of sea ice, the potential for increased wave energy, and higher river discharge may all be interacting to escalate erosion of arctic coastal lowland landscapes. Here we use airborne light detection and ranging (LiDAR) data acquired in 2006 and 2010 to detect landscape change in a 100 km2 study area on the Beaufort Sea coastal plain of
Authors
Benjamin M. Jones, Jason M. Stoker, Ann E. Gibbs, Guido Grosse, Vladimir E. Romanovsky, Thomas A. Douglas, Nichole E.M. Kinsman, Bruce M. Richmond
Seafloor off Natural Bridges State Beach, Santa Cruz, California
The seafloor off Natural Bridges State Beach, Santa Cruz,
California, is extremely varied, with sandy flats, boulder fields,
faults, and complex bedrock ridges. These ridges support rich
marine ecosystems; some of them form the "reefs" that
produce world-class surf breaks. Colors indicate seafloor
depth, from red-orange (about 2 meters or 7 feet) to magenta
(25 meters or 82 feet).
Authors
Curt D. Storlazzi, Nadine E. Golden, Helen Gibbons
Dispersal of fine sediment in nearshore coastal waters
Fine sediment (silt and clay) plays an important role in the physical, ecological, and environmental conditions of coastal systems, yet little is known about the dispersal and fate of fine sediment across coastal margin settings outside of river mouths. Here I provide simple physical scaling and detailed monitoring of a beach nourishment project near Imperial Beach, California, with a high portion
Authors
Jonathan A. Warrick
Seafloor off Lighthouse Point Park, Santa Cruz, California
The seafloor off Lighthouse Point Park, Santa Cruz, California,
is extremely varied, with sandy flats, boulder fields, faults,
and complex bedrock ridges. These ridges support rich
marine ecosystems; some of them form the "reefs" that
produce world-class surf breaks. Colors indicate seafloor
depth, from red-orange (about 2 meters or 7 feet) to magenta
(25 meters or 82 feet).
Authors
Curt D. Storlazzi, Nadine E. Golden, Helen Gibbons
Photography applications
Photographic imaging is the oldest form of remote sensing used in coral reef studies. This chapter briefly explores the history of photography from the 1850s to the present, and delves into its application for coral reef research. The investigation focuses on both photographs collected from low-altitude fixed-wing and rotary aircraft, and those collected from space by astronauts. Different types o
Authors
Susan A. Cochran
U.S. Geological Survey Energy and Minerals science strategy: A resource lifecycle approach
Executive SummaryThe economy, national security, and standard of living of the United States depend heavily on adequate and reliable supplies of energy and mineral resources. Based on population and consumption trends, the Nation’s use of energy and minerals can be expected to grow, driving the demand for ever broader scientific understanding of resource formation, location, and availability. In a
Authors
Richard C. Ferrero, Jonathan J. Kolak, Donald J. Bills, Zachary H. Bowen, Daniel J. Cordier, Tanya J. Gallegos, James R. Hein, Karen D. Kelley, Philip H. Nelson, Vito F. Nuccio, Jeanine M. Schmidt, Robert R. Seal
Drivers of circulation in a fringing coral reef embayment: A wave-flow coupled numerical modeling study of Hanalei Bay, Hawaii
A coupled wave-circulation numerical model of Hanalei Bay, Hawaii, was constructed to investigate controls on nearshore hydrodynamics and overall circulation of a bathymetrically-complex coral reef embayment that is exposed to large waves and river floods several times per annum. The model was calibrated using in situ data representative of the two conditions that dominate the region's wave climat
Authors
Ron Hoeke, Curt D. Storlazzi, Peter V. Ridd
Deep-ocean mineral deposits as a source of critical metals for high- and green-technology applications: Comparison with land-based deposits
No abstract available.
Authors
James R. Hein, Kira Mizell, Andrea Koschinsky, Tracey Conrad
Southwest Washington littoral drift restoration—Beach and nearshore morphological monitoring
A morphological monitoring program has documented the placement and initial dispersal of beach nourishment material (280,000 m3) placed between the Mouth of the Columbia River (MCR) North Jetty and North Head, at the southern end of the Long Beach Peninsula in southwestern Washington State. A total of 21 topographic surveys and 8 nearshore bathymetric surveys were performed between July 11, 2010,
Authors
Andrew W. Stevens, Guy Gelfenbaum, Peter Ruggiero, George M. Kaminsky
River turbidity and sediment loads during dam removal
Dam decommissioning has become an important means for removing unsafe or obsolete dams and for restoring natural fluvial processes, including discharge regimes, sediment transport, and ecosystem connectivity [Doyle et al., 2003]. The largest dam-removal project in history began in September 2011 on the Elwha River of Washington State (Figure 1a). The project, which aims to restore the river ecosys
Authors
Jonathan A. Warrick, Jeffrey J. Duda, Christopher S. Magirl, Chris A. Curran
The effects of wildfire on the sediment yield of a coastal California watershed
The occurrence of two wildfires separated by 31 yr in the chaparral-dominated Arroyo Seco watershed (293 km
Authors
J.A. Warrick, J.A. Hatten, G.B. Pasternack, A.B. Gray, M.A. Goni, R. A. Wheatcroft