Publications
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Quantifying hurricane-induced coastal changes using topographic lidar
USGS and NASA are investigating the impacts of hurricanes on the United States East and Gulf of Mexico coasts with the ultimate objective of improving predictive capabilities. The cornerstone of our effort is to use topographic lidar to acquire pre- and post-storm topography to quantify changes to beaches and dunes. With its rapidity of acquisition and very high density, lidar is revolutionizing t
Authors
Asbury H. Sallenger,, William Krabill, Robert Swift, John Brock
Use of rotating side-scan sonar to measure bedload
No abstract available.
Authors
D. M. Rubin, G. B. Tate, D.J. Topping, R. A. Anima
Field evidence of subsidence and faulting induced by hydrocarbon production in coastal southeast Texas
Three large, mature hydrocarbon fields in coastal southeast Texas were examined to evaluate competing hypotheses of wetland losses and to characterize subaerial and submerged surfaces near reactivated faults and zones of subsidence. Detailed topographic and bathymetric profiles and shallow cores at the Port Neches, Clam Lake, and Caplen Fields provide a basis for distinguishing between (1) extensi
Authors
Robert A. Morton, Noreen A. Purcell, Russell L. Peterson
How are climate and marine biological outbreaks functionally linked?
Since the mid-1970s, large-scale episodic events such as disease epidemics, mass mortalities, harmful algal blooms and other population explosions have been occurring in marine environments at an historically unprecedented rate. The variety of organisms involved (host, pathogens and other opportunists) and the absolute number of episodes have also increased during this period. Are these changes co
Authors
Marshall L. Hayes, Joseph Bonaventura, Todd P. Mitchell, Joseph M. Prospero, Eugene A. Shinn, Frances Van Dolah, Richard T. Barber
Dust in the wind: long range transport of dust in the atmosphere and its implications for global public and ecosystem health
Movement of soil particles in atmospheres is a normal planetary process. Images of Martian dust devils (wind-spouts) and dust storms captured by NASA's Pathfinder have demonstrated the significant role that storm activity plays in creating the red atmospheric haze of Mars. On Earth, desert soils moving in the atmosphere are responsible for the orange hues in brilliant sunrises and sunsets. In seve
Authors
Dale W. Griffin, Christina A. Kellogg, Eugene A. Shinn
Coastal storms and shoreline change: signal or noise?
A linear regression (studentized) residual analysis was used to identify potential shoreline position outliers and to investigate the effect of the outliers on shoreline rate-of-change values for transects along the Outer Banks, North Carolina. Results from this analysis showed that, over a 134 year period, storm-influenced data contribute statistically significant information to the long-term sig
Authors
Michael S. Fenster, Robert Dolan, Robert A. Morton
Seafloor collapse and methane venting associated with gas hydrate on the Blake Ridge: causes and implications to seafloor stability and methane release
No abstract available.
Authors
William P. Dillon, Jeffrey W. Nealon, Michael H. Taylor, Myung W. Lee, Rebecca M. Drury, Christopher H. Anton
Sea-level and environmental changes since the last interglacial in the Gulf of Carpentaria, Australia: an overview
The Gulf of Carpentaria is an epicontinental sea (maximum depth 70 m) between Australia and New Guinea, bordered to the east by Torres Strait (currently 12 m deep) and to the west by the Arafura Sill (53 m below present sea level). Throughout the Quaternary, during times of low sea-level, the Gulf was separated from the open waters of the Indian and Pacific Oceans, forming Lake Carpentaria, an iso
Authors
Allan R. Chivas, Adriana Garcı́a, Sander van der Kaars, Martine Couapel, Sabine Holt, Jessica M. Reeves, David J. Wheeler, Adam D. Switzer, Colin V. Murray-Wallace, Debabrata Banerjee, David M. Price, Sue X. Wang, Grant Pearson, N. Terry Edgar, Luc Beaufort, Patrick de Deckker, Ewan Lawson, C. Blaine Cecil
USGS-NPS-NASA research on coastal change and habitats within US national seashores
No abstract available.
Authors
John Brock, Mark Duffy, William Krabill, Melanie Harris, Laura Moore, Asbury Sallenger
Fish species and community distributions as proxies for sea-floor habitat distributions: the Stellwagen Bank National Marine Sanctuary example (northwest Atlantic, Gulf Of Maine)
Defining the habitats of fishes and associated fauna on outer continental shelves is problematic given the paucity of data on the actual types and distributions of seafloor habitats. However many regions have good data on the distributions of fishes from resource surveys or catch statistics because of the economic importance of the fisheries. Fish distribution data (species or communities) have be
Authors
Peter J. Auster, Kevin Joy, Page C. Valentine