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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
A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor f

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.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America
Geologic and Morphologic Evolution of Coastal Margins

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.
Learn More
Aerial photograph looking west along Dauphin Island, Alabama, taken in September 2016.

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.
By
Natural Hazards Mission Area, Environmental Health Program, St. Petersburg Coastal and Marine Science Center
Alabama Barrier Island Restoration Study

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.
Learn More
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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center
No results found.
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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Science and Products

Filter Total Items: 14
A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor f

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.
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America
Geologic and Morphologic Evolution of Coastal Margins

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.
Learn More
Aerial photograph looking west along Dauphin Island, Alabama, taken in September 2016.

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.
By
Natural Hazards Mission Area, Environmental Health Program, St. Petersburg Coastal and Marine Science Center
Alabama Barrier Island Restoration Study

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.
Learn More
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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center
No results found.
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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

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
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center
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