Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10368
Raw and processed ground-penetrating radar and postprocessed differential global positioning system data collected from Assateague Island, Maryland, October 2014 Raw and processed ground-penetrating radar and postprocessed differential global positioning system data collected from Assateague Island, Maryland, October 2014
Scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center acquired sediment cores, sediment surface grab samples, ground-penetrating radar (GPR) and Differential Global Positioning System (DGPS) data from Assateague Island, Maryland, in October 2014. The objectives were to identify washover deposits in the stratigraphic record to aid in understanding...
Authors
Nicholas J. Zaremba, Julie Bernier, Arnell S. Forde, Christopher G. Smith
Sedimentologic characteristics of recent washover deposits from Assateague Island, Maryland Sedimentologic characteristics of recent washover deposits from Assateague Island, Maryland
The U.S. Geological Survey has a long history of responding to and documenting the impacts of storms along the Nation’s coasts and incorporating these data into storm impact and coastal change vulnerability assessments. Although physical changes caused by tropical and extratropical storms to the sandy beaches and dunes fronting barrier islands are generally well documented, the...
Authors
Julie Bernier, Nicholas J. Zaremba, Cathryn J. Wheaton, Alisha M. Ellis, Marci E. Marot, Christopher G. Smith
Vulnerabilities of national parks in the American Midwest to climate and land use changes Vulnerabilities of national parks in the American Midwest to climate and land use changes
Many national parks in the American Midwest are surrounded by agricultural or urban areas or are in highly fragmented or rapidly changing landscapes. An environmental stressor is a physical, chemical, or biological condition that affects the functioning or productivity of species or ecosystems. Climate change is just one of many stressors on park natural resources; others include...
Authors
Esther D. Stroh, Matthew A. Struckhoff, David Shaver, Krista A. Karstensen
Effects of hydrology, watershed size, and agricultural practices on sediment yields in two river basins in Iowa and Mississippi Effects of hydrology, watershed size, and agricultural practices on sediment yields in two river basins in Iowa and Mississippi
The specific sediment yield (SSY) from watersheds is the result of the balance between natural, scale-dependent erosion and deposition processes, but can be greatly altered by human activities. In general, the SSY decreases along the course of a river as sediments are trapped in alluvial plains and other sinks. However, this relation between SSY and basin area can actually be an...
Authors
Gustavo Henrique Merten, Heather L. Welch, M.D. Tomer
Hydrogeology and water quality of the Floridan aquifer system and effect of Lower Floridan aquifer withdrawals on the Upper Floridan aquifer at Barbour Pointe Community, Chatham County, Georgia, 2013 Hydrogeology and water quality of the Floridan aquifer system and effect of Lower Floridan aquifer withdrawals on the Upper Floridan aquifer at Barbour Pointe Community, Chatham County, Georgia, 2013
Two test wells were completed at the Barbour Pointe community in western Chatham County, near Savannah, Georgia, in 2013 to investigate the potential of using the Lower Floridan aquifer as a source of municipal water supply. One well was completed in the Lower Floridan aquifer at a depth of 1,080 feet (ft) below land surface; the other well was completed in the Upper Floridan aquifer at...
Authors
Gerard Gonthier, John S. Clarke
Dynamic simulation and numerical analysis of hurricane storm surge under sea level rise with geomorphologic changes along the northern Gulf of Mexico Dynamic simulation and numerical analysis of hurricane storm surge under sea level rise with geomorphologic changes along the northern Gulf of Mexico
This work outlines a dynamic modeling framework to examine the effects of global climate change, and sea level rise (SLR) in particular, on tropical cyclone-driven storm surge inundation. The methodology, applied across the northern Gulf of Mexico, adapts a present day large-domain, high resolution, tide, wind-wave, and hurricane storm surge model to characterize the potential outlook of...
Authors
Matthew V. Bilskie, S.C. Hagen, K.A. Alizad, S.C. Medeiros, Davina Passeri, H.F. Needham, A. Cox
Small but tough: What can ecophysiology of croaking gourami Trichopsis vittatus (Cuvier 1831) tell us about invasiveness of non-native fishes in Florida? Small but tough: What can ecophysiology of croaking gourami Trichopsis vittatus (Cuvier 1831) tell us about invasiveness of non-native fishes in Florida?
Trichopsis vittata (Cuvier, 1831) is a small, freshwater gourami (Fam: Osphronemidae) native to southeast Asia. It was first detected in Florida in the 1970s and seems to have persisted for decades in a small area. In this study, we documented T. vittata’s ecophysiological tolerances (salinity and low-temperature) and qualitatively compared them to published values for other sympatric...
Authors
Pamela J. Schofield, Jessica Schulte
Somatic growth dynamics of West Atlantic hawksbill sea turtles: a spatio-temporal perspective Somatic growth dynamics of West Atlantic hawksbill sea turtles: a spatio-temporal perspective
Somatic growth dynamics are an integrated response to environmental conditions. Hawksbill sea turtles (Eretmochelys imbricata) are long-lived, major consumers in coral reef habitats that move over broad geographic areas (hundreds to thousands of kilometers). We evaluated spatio-temporal effects on hawksbill growth dynamics over a 33-yr period and 24 study sites throughout the West...
Authors
Karen A. Bjorndal, Milani Chaloupka, Vincent S. Saba, Carlos E. Diez, Robert P. van Dam, Barry H. Krueger, Julia A. Horrocks, Armando J.B. Santos, Claudio Bellini, Maria A.G. Marcovaldi, Mabel Nava, Sue Willis, Brendan J. Godley, Shannon Gore, Lucy A. Hawkes, Andrew McGowan, Matthew J. Witt, Thomas B. Stringell, Amdeep Sanghera, Peter B. Richardson, Annette C. Broderick, Quinton Phillips, Marta C. Calosso, John A.B. Claydon, Janice Blumenthal, Felix Moncada, Gonzalo Nodarse, Yosvani Medina, Stephen G. Dunbar, Lawrence D. Wood, Cynthia J. Lagueux, Cathi L. Campbell, Anne B. Meylan, Peter A. Meylan, Virginia R. Burns Perez, Robin A. Coleman, Samantha Strindberg, Vicente Guzman-H, Kristen M. Hart, Michael S. Cherkiss, Zandy Hillis-Starr, Ian Lundgren, Ralf H. Boulon, Stephen Connett, Mark E. Outerbridge, Alan B. Bolten
Potential effects of sea-level rise on the depth to saturated sediments of the Sagamore and Monomoy flow lenses on Cape Cod, Massachusetts Potential effects of sea-level rise on the depth to saturated sediments of the Sagamore and Monomoy flow lenses on Cape Cod, Massachusetts
In 2014, the U.S. Geological Survey, in cooperation with the Association to Preserve Cape Cod, the Cape Cod Commission, and the Massachusetts Environmental Trust, began an evaluation of the potential effects of sea-level rise on water table altitudes and depths to water on central and western Cape Cod, Massachusetts. Increases in atmospheric and oceanic temperatures arising, in part...
Authors
Donald A. Walter, Timothy D. McCobb, John P. Masterson, Michael N. Fienen
Sediment data collected in 2014 from Barnegat Bay, New Jersey Sediment data collected in 2014 from Barnegat Bay, New Jersey
In response to the 2010 Governor’s Action Plan to clean up the Barnegat Bay–Little Egg Harbor (BBLEH) estuary in New Jersey, the U.S. Geological Survey (USGS) partnered with the New Jersey Department of Environmental Protection in 2011 to begin a multidisciplinary research project to understand the physical controls on water quality in the bay. Between 2011 and 2013, USGS scientists...
Authors
Julie Bernier, Chelsea Stalk, Kyle W. Kelso, Jennifer L. Miselis, Rob Tunstead
Persistence and microbial source tracking of Escherichia coli at a swimming beach at Lake of the Ozarks State Park, Missouri Persistence and microbial source tracking of Escherichia coli at a swimming beach at Lake of the Ozarks State Park, Missouri
The Missouri Department of Natural Resources (MDNR) has closed or posted advisories at public beaches at Lake of the Ozarks State Park in Missouri because of Escherichia coli (E. coli) concentration exceedances in recent years. Spatial and temporal patterns of E. coliconcentrations, microbial source tracking, novel sampling techniques, and beach-use patterns were studied during the 2012
Authors
Jordan L. Wilson, John G. Schumacher, Joel G. Burken
Algorithms used in the Airborne Lidar Processing System (ALPS) Algorithms used in the Airborne Lidar Processing System (ALPS)
The Airborne Lidar Processing System (ALPS) analyzes Experimental Advanced Airborne Research Lidar (EAARL) data—digitized laser-return waveforms, position, and attitude data—to derive point clouds of target surfaces. A full-waveform airborne lidar system, the EAARL seamlessly and simultaneously collects mixed environment data, including submerged, sub-aerial bare earth, and vegetation...
Authors
David B. Nagle, C. Wayne Wright