Publications
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Field observations of swash zone flow patterns and 3D morphodynamics Field observations of swash zone flow patterns and 3D morphodynamics
Rapid video measurements of foreshore morphology and velocity were collected at Duck, NC in 1997 to investigate sediment transport processes in the swash zone. Estimates of foreshore evolution over a roughly 30 m cross-shore by 80 m alongshore study area were determined using a stereogrammetric technique. During the passage of a small storm (offshore wave heights increased from 1.4 to 2...
Authors
Jack A. Puelo, K. Todd Holland, Timothy N. Kooney, Sallenger
Microbial lime-mud production and its relation to climate change Microbial lime-mud production and its relation to climate change
Microbial calcification has been identified as a significant source of carbonate sediment production in modern marine and lacustrine environments around the globe. This process has been linked to the production of modern whitings and large, micritic carbonate deposits throughout the geologic record. Furthermore, carbonate deposits believed to be the result of cyanobacterial and...
Authors
K. K. Yates, L. L. Robbins
The Florida Everglades ecosystem: climatic and anthropogenic impacts over the last two millennia The Florida Everglades ecosystem: climatic and anthropogenic impacts over the last two millennia
No abstract available.
Authors
Debra A. Willard, Charles W. Holmes, Lisa M. Weimer
Integrated strategy urged to address coastal contamination issues Integrated strategy urged to address coastal contamination issues
Coastal bays and estuaries are well known for their intrinsic recreational and economic value, yet these ecosystems are also among our most troubled natural environments. Urban development, agriculture, and shipping are just a few examples of human activities that can cause a wide range of deleterious changes within the coastal environment. These alterations, however, occur...
Authors
Peter W. Swarzenski, Keith A. Kvenvolden, Arthur J. Horowitz, Marilyn R. Buchholtz ten Brink
Coral reefs and shoreline dipsticks Coral reefs and shoreline dipsticks
No abstract available.
Authors
E.A. Shinn
Quantifying hurricane-induced coastal changes using topographic lidar 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...
Authors
Sallenger, William Krabill, Robert Swift, John Brock
Use of rotating side-scan sonar to measure bedload 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 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...
Authors
Robert A. Morton, Noreen A. Purcell, Russell L. Peterson
How are climate and marine biological outbreaks functionally linked? 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...
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 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...
Authors
Dale W. Griffin, Christina A. Kellogg, Eugene A. Shinn
Coastal storms and shoreline change: signal or noise? 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...
Authors
Michael S. Fenster, Robert Dolan, Robert A. Morton