James Flocks
James Flocks is a Research Geologist at the St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida.
Science and Products
Filter Total Items: 14
Geologic and Morphologic Evolution of Coastal Margins
A combination of geophysics, sediment sampling, and chronology techniques are used to characterize the regional geomorphologic response of coastal systems to environmental changes.
Alabama Barrier Island Restoration Study
Scientists are collecting geologic data and developing a numerical model framework to understand the evolution of Dauphin Island over the last 15-20 years and assess the future evolution of the island over the next 15-50 years, including the impacts of potential restoration scenarios.
Filter Total Items: 32
Coastal Multibeam Bathymetry Data Collected in 2019 off of Santa Rosa Island, Florida Coastal Multibeam Bathymetry Data Collected in 2019 off of Santa Rosa Island, Florida
The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC), collected multibeam bathymetry data off the coast of Santa Rosa Island, Florida in June of 2019. The data was collected as part of the USGS Resource Evaluation for Management Applications (CREMA) project. This USGS Data Release includes the resulting processed elevation point data (XYZ) as derived...
Multibeam Bathymetry Data Collected in 2018 offshore of Cedar Key, Florida Multibeam Bathymetry Data Collected in 2018 offshore of Cedar Key, Florida
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted a multibeam bathymetry survey of a selected area offshore Cedar Key, Florida (FL) for the Florida Big Bend Pilot Study funded by USGS and the National Oceanic Atmospheric Administration (NOAA). The study involves federal, state, and local agencies who are taking a comprehensive approach...
Archive of Digitized Analog Boomer Seismic Reflection Data Collected from the Northern Gulf of Mexico: 1982, 1985, 1989, 1991, and 1992 Archive of Digitized Analog Boomer Seismic Reflection Data Collected from the Northern Gulf of Mexico: 1982, 1985, 1989, 1991, and 1992
The U.S. Geological Survey (USGS) Coastal and Marine Hazards and Resources Program (CMHRP) has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls...
Archive of Chirp Subbottom Profile Data Collected in 2017 from the Louisiana Chenier Plain Archive of Chirp Subbottom Profile Data Collected in 2017 from the Louisiana Chenier Plain
Scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys around the eastern and western Chenier Plain, Louisiana, in 2017. Data were collected under the Barrier Island Coastal Monitoring (BICM) program, an ongoing collaboration between the State of Louisiana Coastal Protection and Restoration Authority...
Archive of Digitized Analog Boomer Seismic Reflection Data Collected During USGS Cruise Kit Jones 92-1 Along the Florida Shelf, July 1992 Archive of Digitized Analog Boomer Seismic Reflection Data Collected During USGS Cruise Kit Jones 92-1 Along the Florida Shelf, July 1992
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Coastal Single-Beam Bathymetry Data Collected in 2017 from the Chenier Plain, Louisiana Coastal Single-Beam Bathymetry Data Collected in 2017 from the Chenier Plain, Louisiana
As part of the Louisiana Coastal Protection and Restoration Authority's Barrier Island Comprehensive Monitoring Program, scientist from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a nearshore single-beam bathymetry survey along the Chenier Plain, Louisiana from Marsh Island to Sabine Pass. The goal of the BICM program is to provide long...
Sediment Data for Samples Collected in 2015, 2016, and 2017 from Coastal Louisiana Sediment Data for Samples Collected in 2015, 2016, and 2017 from Coastal Louisiana
This data release serves as an archive of sediment data collected in 2015, 2016, and 2017 from coastal Louisiana. In 2015 and 2016, sediment grab samples (N=874) were collected coast-wide along shore-perpendicular transects that included back-barrier, emergent (beach and barrier island), shoreface, and nearshore environments. Sample locations were selected to re-occupy as closely as...
Archive of Digitized Analog Boomer Seismic-Reflection Data Collected During U.S. Geological Survey Cruises Erda 92-2 and Erda 92-4 in Mississippi Sound, June and August 1992 Archive of Digitized Analog Boomer Seismic-Reflection Data Collected During U.S. Geological Survey Cruises Erda 92-2 and Erda 92-4 in Mississippi Sound, June and August 1992
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Archive of Digitized Analog Boomer Seismic Reflection Data Collected during USGS Cruise USFHC in Mississippi Sound and Bay St. Louis, September 1989 Archive of Digitized Analog Boomer Seismic Reflection Data Collected during USGS Cruise USFHC in Mississippi Sound and Bay St. Louis, September 1989
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Archive of Digitized Analog Boomer Seismic Reflection Data Collected Along the Louisiana Shelf, 1982-1984 Archive of Digitized Analog Boomer Seismic Reflection Data Collected Along the Louisiana Shelf, 1982-1984
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Archive of Digitized Analog Boomer and Minisparker Seismic Reflection Data Collected from the Northern Gulf of Mexico, 1981, 1990 and 1991 Archive of Digitized Analog Boomer and Minisparker Seismic Reflection Data Collected from the Northern Gulf of Mexico, 1981, 1990 and 1991
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Historical and Recent Coastal Bathymetry Data Nearshore Ship, Horn, and Petit Bois Islands, Mississippi Historical and Recent Coastal Bathymetry Data Nearshore Ship, Horn, and Petit Bois Islands, Mississippi
Historic, recent, and present day bathymetry data sets were compiled and Digital Elevation Models (DEMs) were created to further compare changing bathymetry over several time periods. This work was completed in cooperation with the United States Army Corps of Engineers (USACE) Mobile, Alabama and the National Park Service (NPS) as part of the Mississippi Coastal Improvements Program...
Filter Total Items: 114
Seafloor change around the Mississippi barrier islands, 1920 to 2016—The influence of storm effects on inlet and island morphodynamics Seafloor change around the Mississippi barrier islands, 1920 to 2016—The influence of storm effects on inlet and island morphodynamics
The Mississippi Barrier Islands in the northern Gulf of Mexico experienced high rates of spatial change over recorded history. Wave-induced sediment transport induced island migration, landward retreat, and inlet evolution. These processes can be measured using repeat bathymetric surveys to analyze elevation change over time. This study analyzes digital elevation models created from...
Authors
James Flocks, Noreen A. Buster, Owen T. Brenner
Late Quaternary evolution and stratigraphic framework influence on coastal systems along the north-central Gulf of Mexico, USA Late Quaternary evolution and stratigraphic framework influence on coastal systems along the north-central Gulf of Mexico, USA
Coastal systems in the Gulf of Mexico are threatened by reduced sediment supply, storm impacts and relative sea-level rise (RSLR). The geologic record provides insight into geomorphic evolution thresholds to these forcing mechanisms to help predict future barrier evolution in response to climate change. This study synthesizes ∼2100 km of geophysical data, 700 + sediment cores, and 62...
Authors
Robert S Hollis, Davin J Wallace, Michael D Miner, Nina S Gal, Clayton H Dike, James Flocks
Application of sediment end-member analysis for understanding sediment fluxes, northern Chandeleur Islands, Louisiana Application of sediment end-member analysis for understanding sediment fluxes, northern Chandeleur Islands, Louisiana
We analyzed grain-size distributions (GSDs) from a time-series of sediment samples to evaluate sediment transport following anthropogenic sand-berm emplacement at the northern Chandeleur Islands, Louisiana. End-member analysis (EMA) was applied to compare the end-member (EM) GSD of a known sediment source to GSDs from surrounding environments and characterize the physical redistribution...
Authors
Julie Bernier, Jennifer L. Miselis, Noreen A. Buster, James G. Flocks
Louisiana Coastal Zone sediment characterization; comparison of sediment grain sizes for samples collected in 2008 and 2015–2016 from the western Chenier plain to the Chandeleur Islands, Louisiana—Louisiana Barrier Island Comprehensive Monitoring (BICM) P Louisiana Coastal Zone sediment characterization; comparison of sediment grain sizes for samples collected in 2008 and 2015–2016 from the western Chenier plain to the Chandeleur Islands, Louisiana—Louisiana Barrier Island Comprehensive Monitoring (BICM) P
Repeated sampling and grain-size analysis of surficial sediments along the sandy shorelines of Louisiana is necessary to characterize coastal-zone sediment properties and evaluate sediment transport patterns within the nearshore environments. In 2008, and again in 2015 and 2016, sediment grab samples were collected along the shorelines of the western Chenier plain, the Isles Dernieres...
Authors
Stephen T. Bosse, James G. Flocks, Julie Bernier, Ioannis Y. Georgiou, Mark A. Kulp, Michael Brown
Nearshore single-beam bathymetry data collected in 2015, Dauphin Island, Alabama Nearshore single-beam bathymetry data collected in 2015, Dauphin Island, Alabama
Dauphin Island, Alabama, is a barrier island located in the northern Gulf of Mexico that supports local residences, tourism, commercial infrastructure, and historic Fort Gaines. During the past decade, Dauphin Island was affected by several major hurricanes—Hurricanes Ivan (2004), Katrina (2005), and Isaac (2012)—and storms, along with sea-level rise, continue to present a threat to...
Authors
Nancy T. DeWitt, Chelsea A. Stalk, James G. Flocks, Julie Bernier, Kyle W. Kelso, Jake J. Fredericks, Thomas M. Tuten
Nearshore coastal bathymetry data collected in 2016 from West Ship Island to Horn Island, Gulf Islands National Seashore, Mississippi Nearshore coastal bathymetry data collected in 2016 from West Ship Island to Horn Island, Gulf Islands National Seashore, Mississippi
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center, in cooperation with the U.S. Army Corps of Engineers, Mobile District, conducted bathymetric surveys of the nearshore waters surrounding Ship and Horn Islands, Gulf Islands National Seashore, Mississippi. The objective of this study was to establish base-level elevation conditions around West Ship, East...
Authors
Nancy T. DeWitt, Chelsea A. Stalk, Jake J. Fredericks, James G. Flocks, Kyle W. Kelso, Andrew S. Farmer, Thomas M. Tuten, Noreen A. Buster
Analysis of seafloor change around Dauphin Island, Alabama, 1987–2015 Analysis of seafloor change around Dauphin Island, Alabama, 1987–2015
Dauphin Island is a 26-km-long barrier island located southwest of Mobile Bay, Alabama, in the north-central Gulf of Mexico. The island contains sandy beaches, dunes, maritime forests, freshwater ponds and intertidal wetlands, providing habitat for many endangered and threatened species. Dauphin Island also provides protection for and maintains estuarine conditions within Mississippi...
Authors
James G. Flocks, Nancy T. DeWitt, Chelsea A. Stalk
Digitized analog boomer seismic-reflection data collected during U.S. Geological Survey cruises Erda 90-1_HC, Erda 90-1_PBP, and Erda 91-3 in Mississippi Sound, June 1990 and September 1991 Digitized analog boomer seismic-reflection data collected during U.S. Geological Survey cruises Erda 90-1_HC, Erda 90-1_PBP, and Erda 91-3 in Mississippi Sound, June 1990 and September 1991
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic-reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Authors
Stephen T. Bosse, James G. Flocks, Arnell S. Forde
Coastal single-beam bathymetry data collected in 2015 from Raccoon Point to Point Au Fer Island, Louisiana Coastal single-beam bathymetry data collected in 2015 from Raccoon Point to Point Au Fer Island, Louisiana
As part of the Barrier Island Comprehensive Monitoring Program (BICM), scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a nearshore single-beam bathymetry survey along the south-central coast of Louisiana, from Raccoon Point to Point Au Fer Island, in July 2015. The goal of the BICM program is to provide long-term data on...
Authors
Chelsea A. Stalk, Nancy T. DeWitt, Jack L. Kindinger, James G. Flocks, Billy J. Reynolds, Kyle W. Kelso, Joseph J. Fredericks, Thomas M. Tuten
Sediment data collected in 2014 and 2015 from around Breton and Gosier Islands, Breton National Wildlife Refuge, Louisiana Sediment data collected in 2014 and 2015 from around Breton and Gosier Islands, Breton National Wildlife Refuge, Louisiana
Breton Island, located at the southern end of the Chandeleur Islands, supports one of Louisiana’s largest historical brown pelican (Pelecanus occidentalis) nesting colonies. Although the brown pelican was delisted as an endangered species in 2009, nesting areas are threatened by continued land loss and are extremely vulnerable to storm impacts. The U.S. Fish and Wildlife Service proposed...
Authors
Julie Bernier, Kyle W. Kelso, Thomas M. Tuten, Chelsea A. Stalk, James G. Flocks
Coastal single-beam bathymetry data collected in 2015 from the Chandeleur Islands, Louisiana Coastal single-beam bathymetry data collected in 2015 from the Chandeleur Islands, Louisiana
As part of the Louisiana Coastal Protection and Restoration Authority (CPRA) Barrier Island Comprehensive Monitoring Program, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a single-beam bathymetry survey around the Chandeleur Islands, Louisiana, in June 2015. The goal of the program is to provide long-term data on Louisiana’s...
Authors
Chelsea A. Stalk, Nancy T. DeWitt, Julie Bernier, Jack G. Kindinger, James G. Flocks, Jennifer L. Miselis, Stanley D. Locker, Kyle W. Kelso, Thomas M. Tuten
Coastal bathymetry data collected in 2013 from the Chandeleur Islands, Louisiana Coastal bathymetry data collected in 2013 from the Chandeleur Islands, Louisiana
As part of the Barrier Island Evolution Research Project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys around the northern Chandeleur Islands, Louisiana, in July and August of 2013. The objective of the study is to better understand barrier-island geomorphic evolution, particularly storm-related
Authors
Nancy T. DeWitt, Jennifer L. Miselis, Jake J. Fredericks, Julie Bernier, Billy J. Reynolds, Kyle W. Kelso, David M. Thompson, James G. Flocks, Dana S. Wiese
Science and Products
Filter Total Items: 14
Geologic and Morphologic Evolution of Coastal Margins
A combination of geophysics, sediment sampling, and chronology techniques are used to characterize the regional geomorphologic response of coastal systems to environmental changes.
Alabama Barrier Island Restoration Study
Scientists are collecting geologic data and developing a numerical model framework to understand the evolution of Dauphin Island over the last 15-20 years and assess the future evolution of the island over the next 15-50 years, including the impacts of potential restoration scenarios.
Filter Total Items: 32
Coastal Multibeam Bathymetry Data Collected in 2019 off of Santa Rosa Island, Florida Coastal Multibeam Bathymetry Data Collected in 2019 off of Santa Rosa Island, Florida
The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC), collected multibeam bathymetry data off the coast of Santa Rosa Island, Florida in June of 2019. The data was collected as part of the USGS Resource Evaluation for Management Applications (CREMA) project. This USGS Data Release includes the resulting processed elevation point data (XYZ) as derived...
Multibeam Bathymetry Data Collected in 2018 offshore of Cedar Key, Florida Multibeam Bathymetry Data Collected in 2018 offshore of Cedar Key, Florida
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted a multibeam bathymetry survey of a selected area offshore Cedar Key, Florida (FL) for the Florida Big Bend Pilot Study funded by USGS and the National Oceanic Atmospheric Administration (NOAA). The study involves federal, state, and local agencies who are taking a comprehensive approach...
Archive of Digitized Analog Boomer Seismic Reflection Data Collected from the Northern Gulf of Mexico: 1982, 1985, 1989, 1991, and 1992 Archive of Digitized Analog Boomer Seismic Reflection Data Collected from the Northern Gulf of Mexico: 1982, 1985, 1989, 1991, and 1992
The U.S. Geological Survey (USGS) Coastal and Marine Hazards and Resources Program (CMHRP) has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls...
Archive of Chirp Subbottom Profile Data Collected in 2017 from the Louisiana Chenier Plain Archive of Chirp Subbottom Profile Data Collected in 2017 from the Louisiana Chenier Plain
Scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys around the eastern and western Chenier Plain, Louisiana, in 2017. Data were collected under the Barrier Island Coastal Monitoring (BICM) program, an ongoing collaboration between the State of Louisiana Coastal Protection and Restoration Authority...
Archive of Digitized Analog Boomer Seismic Reflection Data Collected During USGS Cruise Kit Jones 92-1 Along the Florida Shelf, July 1992 Archive of Digitized Analog Boomer Seismic Reflection Data Collected During USGS Cruise Kit Jones 92-1 Along the Florida Shelf, July 1992
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Coastal Single-Beam Bathymetry Data Collected in 2017 from the Chenier Plain, Louisiana Coastal Single-Beam Bathymetry Data Collected in 2017 from the Chenier Plain, Louisiana
As part of the Louisiana Coastal Protection and Restoration Authority's Barrier Island Comprehensive Monitoring Program, scientist from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a nearshore single-beam bathymetry survey along the Chenier Plain, Louisiana from Marsh Island to Sabine Pass. The goal of the BICM program is to provide long...
Sediment Data for Samples Collected in 2015, 2016, and 2017 from Coastal Louisiana Sediment Data for Samples Collected in 2015, 2016, and 2017 from Coastal Louisiana
This data release serves as an archive of sediment data collected in 2015, 2016, and 2017 from coastal Louisiana. In 2015 and 2016, sediment grab samples (N=874) were collected coast-wide along shore-perpendicular transects that included back-barrier, emergent (beach and barrier island), shoreface, and nearshore environments. Sample locations were selected to re-occupy as closely as...
Archive of Digitized Analog Boomer Seismic-Reflection Data Collected During U.S. Geological Survey Cruises Erda 92-2 and Erda 92-4 in Mississippi Sound, June and August 1992 Archive of Digitized Analog Boomer Seismic-Reflection Data Collected During U.S. Geological Survey Cruises Erda 92-2 and Erda 92-4 in Mississippi Sound, June and August 1992
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Archive of Digitized Analog Boomer Seismic Reflection Data Collected during USGS Cruise USFHC in Mississippi Sound and Bay St. Louis, September 1989 Archive of Digitized Analog Boomer Seismic Reflection Data Collected during USGS Cruise USFHC in Mississippi Sound and Bay St. Louis, September 1989
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Archive of Digitized Analog Boomer Seismic Reflection Data Collected Along the Louisiana Shelf, 1982-1984 Archive of Digitized Analog Boomer Seismic Reflection Data Collected Along the Louisiana Shelf, 1982-1984
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Archive of Digitized Analog Boomer and Minisparker Seismic Reflection Data Collected from the Northern Gulf of Mexico, 1981, 1990 and 1991 Archive of Digitized Analog Boomer and Minisparker Seismic Reflection Data Collected from the Northern Gulf of Mexico, 1981, 1990 and 1991
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Historical and Recent Coastal Bathymetry Data Nearshore Ship, Horn, and Petit Bois Islands, Mississippi Historical and Recent Coastal Bathymetry Data Nearshore Ship, Horn, and Petit Bois Islands, Mississippi
Historic, recent, and present day bathymetry data sets were compiled and Digital Elevation Models (DEMs) were created to further compare changing bathymetry over several time periods. This work was completed in cooperation with the United States Army Corps of Engineers (USACE) Mobile, Alabama and the National Park Service (NPS) as part of the Mississippi Coastal Improvements Program...
Filter Total Items: 114
Seafloor change around the Mississippi barrier islands, 1920 to 2016—The influence of storm effects on inlet and island morphodynamics Seafloor change around the Mississippi barrier islands, 1920 to 2016—The influence of storm effects on inlet and island morphodynamics
The Mississippi Barrier Islands in the northern Gulf of Mexico experienced high rates of spatial change over recorded history. Wave-induced sediment transport induced island migration, landward retreat, and inlet evolution. These processes can be measured using repeat bathymetric surveys to analyze elevation change over time. This study analyzes digital elevation models created from...
Authors
James Flocks, Noreen A. Buster, Owen T. Brenner
Late Quaternary evolution and stratigraphic framework influence on coastal systems along the north-central Gulf of Mexico, USA Late Quaternary evolution and stratigraphic framework influence on coastal systems along the north-central Gulf of Mexico, USA
Coastal systems in the Gulf of Mexico are threatened by reduced sediment supply, storm impacts and relative sea-level rise (RSLR). The geologic record provides insight into geomorphic evolution thresholds to these forcing mechanisms to help predict future barrier evolution in response to climate change. This study synthesizes ∼2100 km of geophysical data, 700 + sediment cores, and 62...
Authors
Robert S Hollis, Davin J Wallace, Michael D Miner, Nina S Gal, Clayton H Dike, James Flocks
Application of sediment end-member analysis for understanding sediment fluxes, northern Chandeleur Islands, Louisiana Application of sediment end-member analysis for understanding sediment fluxes, northern Chandeleur Islands, Louisiana
We analyzed grain-size distributions (GSDs) from a time-series of sediment samples to evaluate sediment transport following anthropogenic sand-berm emplacement at the northern Chandeleur Islands, Louisiana. End-member analysis (EMA) was applied to compare the end-member (EM) GSD of a known sediment source to GSDs from surrounding environments and characterize the physical redistribution...
Authors
Julie Bernier, Jennifer L. Miselis, Noreen A. Buster, James G. Flocks
Louisiana Coastal Zone sediment characterization; comparison of sediment grain sizes for samples collected in 2008 and 2015–2016 from the western Chenier plain to the Chandeleur Islands, Louisiana—Louisiana Barrier Island Comprehensive Monitoring (BICM) P Louisiana Coastal Zone sediment characterization; comparison of sediment grain sizes for samples collected in 2008 and 2015–2016 from the western Chenier plain to the Chandeleur Islands, Louisiana—Louisiana Barrier Island Comprehensive Monitoring (BICM) P
Repeated sampling and grain-size analysis of surficial sediments along the sandy shorelines of Louisiana is necessary to characterize coastal-zone sediment properties and evaluate sediment transport patterns within the nearshore environments. In 2008, and again in 2015 and 2016, sediment grab samples were collected along the shorelines of the western Chenier plain, the Isles Dernieres...
Authors
Stephen T. Bosse, James G. Flocks, Julie Bernier, Ioannis Y. Georgiou, Mark A. Kulp, Michael Brown
Nearshore single-beam bathymetry data collected in 2015, Dauphin Island, Alabama Nearshore single-beam bathymetry data collected in 2015, Dauphin Island, Alabama
Dauphin Island, Alabama, is a barrier island located in the northern Gulf of Mexico that supports local residences, tourism, commercial infrastructure, and historic Fort Gaines. During the past decade, Dauphin Island was affected by several major hurricanes—Hurricanes Ivan (2004), Katrina (2005), and Isaac (2012)—and storms, along with sea-level rise, continue to present a threat to...
Authors
Nancy T. DeWitt, Chelsea A. Stalk, James G. Flocks, Julie Bernier, Kyle W. Kelso, Jake J. Fredericks, Thomas M. Tuten
Nearshore coastal bathymetry data collected in 2016 from West Ship Island to Horn Island, Gulf Islands National Seashore, Mississippi Nearshore coastal bathymetry data collected in 2016 from West Ship Island to Horn Island, Gulf Islands National Seashore, Mississippi
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center, in cooperation with the U.S. Army Corps of Engineers, Mobile District, conducted bathymetric surveys of the nearshore waters surrounding Ship and Horn Islands, Gulf Islands National Seashore, Mississippi. The objective of this study was to establish base-level elevation conditions around West Ship, East...
Authors
Nancy T. DeWitt, Chelsea A. Stalk, Jake J. Fredericks, James G. Flocks, Kyle W. Kelso, Andrew S. Farmer, Thomas M. Tuten, Noreen A. Buster
Analysis of seafloor change around Dauphin Island, Alabama, 1987–2015 Analysis of seafloor change around Dauphin Island, Alabama, 1987–2015
Dauphin Island is a 26-km-long barrier island located southwest of Mobile Bay, Alabama, in the north-central Gulf of Mexico. The island contains sandy beaches, dunes, maritime forests, freshwater ponds and intertidal wetlands, providing habitat for many endangered and threatened species. Dauphin Island also provides protection for and maintains estuarine conditions within Mississippi...
Authors
James G. Flocks, Nancy T. DeWitt, Chelsea A. Stalk
Digitized analog boomer seismic-reflection data collected during U.S. Geological Survey cruises Erda 90-1_HC, Erda 90-1_PBP, and Erda 91-3 in Mississippi Sound, June 1990 and September 1991 Digitized analog boomer seismic-reflection data collected during U.S. Geological Survey cruises Erda 90-1_HC, Erda 90-1_PBP, and Erda 91-3 in Mississippi Sound, June 1990 and September 1991
The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic-reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles...
Authors
Stephen T. Bosse, James G. Flocks, Arnell S. Forde
Coastal single-beam bathymetry data collected in 2015 from Raccoon Point to Point Au Fer Island, Louisiana Coastal single-beam bathymetry data collected in 2015 from Raccoon Point to Point Au Fer Island, Louisiana
As part of the Barrier Island Comprehensive Monitoring Program (BICM), scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a nearshore single-beam bathymetry survey along the south-central coast of Louisiana, from Raccoon Point to Point Au Fer Island, in July 2015. The goal of the BICM program is to provide long-term data on...
Authors
Chelsea A. Stalk, Nancy T. DeWitt, Jack L. Kindinger, James G. Flocks, Billy J. Reynolds, Kyle W. Kelso, Joseph J. Fredericks, Thomas M. Tuten
Sediment data collected in 2014 and 2015 from around Breton and Gosier Islands, Breton National Wildlife Refuge, Louisiana Sediment data collected in 2014 and 2015 from around Breton and Gosier Islands, Breton National Wildlife Refuge, Louisiana
Breton Island, located at the southern end of the Chandeleur Islands, supports one of Louisiana’s largest historical brown pelican (Pelecanus occidentalis) nesting colonies. Although the brown pelican was delisted as an endangered species in 2009, nesting areas are threatened by continued land loss and are extremely vulnerable to storm impacts. The U.S. Fish and Wildlife Service proposed...
Authors
Julie Bernier, Kyle W. Kelso, Thomas M. Tuten, Chelsea A. Stalk, James G. Flocks
Coastal single-beam bathymetry data collected in 2015 from the Chandeleur Islands, Louisiana Coastal single-beam bathymetry data collected in 2015 from the Chandeleur Islands, Louisiana
As part of the Louisiana Coastal Protection and Restoration Authority (CPRA) Barrier Island Comprehensive Monitoring Program, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a single-beam bathymetry survey around the Chandeleur Islands, Louisiana, in June 2015. The goal of the program is to provide long-term data on Louisiana’s...
Authors
Chelsea A. Stalk, Nancy T. DeWitt, Julie Bernier, Jack G. Kindinger, James G. Flocks, Jennifer L. Miselis, Stanley D. Locker, Kyle W. Kelso, Thomas M. Tuten
Coastal bathymetry data collected in 2013 from the Chandeleur Islands, Louisiana Coastal bathymetry data collected in 2013 from the Chandeleur Islands, Louisiana
As part of the Barrier Island Evolution Research Project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys around the northern Chandeleur Islands, Louisiana, in July and August of 2013. The objective of the study is to better understand barrier-island geomorphic evolution, particularly storm-related
Authors
Nancy T. DeWitt, Jennifer L. Miselis, Jake J. Fredericks, Julie Bernier, Billy J. Reynolds, Kyle W. Kelso, David M. Thompson, James G. Flocks, Dana S. Wiese