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.
![A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor f](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/side_image/public/thumbnails/image/perspective-model.jpg?itok=QXUBQpvu)
Geologic and Morphologic Evolution of Coastal Margins (GeoEvo) Project
The Geologic and Morphologic Evolution of Coastal Margins (GeoEvo) project seeks to understand the historic (years to decades) and geologic (decades to millennia) evolution of coastal systems. Investigations utilize a combination of geophysics, sediment sampling, and chronology techniques to characterize the regional geomorphologic response of coastal systems to environmental changes. Understanding how and why coasts have changed in the past can provide insight into modern coastal behavior, future coastal evolution, the extent and quality of sediment resources, and spatial variability in the resilience of coastal ecosystems, all of which inform coastal resource management.
Geologic Evolution of Cat Island, Mississippi
The geologic evolution of Cat Island has been influenced by deltaic, lagoonal/estuarine, tidal, and oceanographic processes, resulting in a complex stratigraphic record.
Science Support for the Mississippi Coastal Improvement Project
Since 2007, the USGS (with NPS and USACE) has been mapping the seafloor and substrate around the Mississippi barrier islands to characterize the near-surface stratigraphy and identify the influence it has on island evolution and fate.
Integrating Mapping and Modeling to Support the Restoration of Bird Nesting Habitat at Breton Island National Wildlife Refuge
In response to storms, reduced sediment supply, and sea-level rise, Breton Island is rapidly deteriorating, impacting the available nesting habitat of endangered seabirds. This study provides critical information regarding the physical environment of the island system.
Barrier Island Comprehensive Monitoring
Historical and newly acquired data were used to assess and monitor changes in the aerial and subaqueous extent of islands, habitat types, sediment properties, environmental processes, and vegetation composition.
Subsidence and Coastal Geomorphic Change in South-Central Louisiana
New methods will investigate coastal subsidence on and around barrier islands before and after restoration.
Research tasks associated with this project are listed below.
Below are publications associated with this project.
Geophysical data from offshore of the Gulf Islands National Seashore, Cat Island to Western Horn Island, Mississippi
The shallow stratigraphy and sand resources offshore of the Mississippi Barrier Islands
Archive of Side Scan Sonar and Swath Bathymetry Data collected during USGS Cruise 10CCT02 Offshore of Petit Bois Island Including Petit Bois Pass, Gulf Islands National Seashore, Mississippi, March 2010
Hurricane impact and recovery shoreline change analysis of the Chandeleur Islands, Louisiana, USA: 1855 to 2005
Archive of digital Chirp subbottom profile data collected during USGS cruises 10CCT01, 10CCT02, and 10CCT03, Mississippi and Alabama Gulf Islands, March and April 2010
Accuracy of EAARL lidar ground elevations using a bare-earth algorithm in marsh and beach grasses on the Chandeleur Islands, Louisiana
Subsurface control on seafloor erosional processes offshore of the Chandeleur Islands, Louisiana
Evolution and preservation potential of fluvial and transgressive deposits on the Louisiana inner shelf: Understanding depositional processes to support coastal management
Sand Resources, Regional Geology, and Coastal Processes of the Chandeleur Islands Coastal System: an Evaluation of the Breton National Wildlife Refuge
Delta lobe degradation and hurricane impacts governing large-scale coastal behavior, South-central Louisiana, USA
Bathymetric survey of the nearshore from Belle Pass to Caminada Pass, Louisiana: Methods and data report
Below are partners associated with this project.
A combination of geophysics, sediment sampling, and chronology techniques are used to characterize the regional geomorphologic response of coastal systems to environmental changes.
![A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor f](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/side_image/public/thumbnails/image/perspective-model.jpg?itok=QXUBQpvu)
Geologic and Morphologic Evolution of Coastal Margins (GeoEvo) Project
The Geologic and Morphologic Evolution of Coastal Margins (GeoEvo) project seeks to understand the historic (years to decades) and geologic (decades to millennia) evolution of coastal systems. Investigations utilize a combination of geophysics, sediment sampling, and chronology techniques to characterize the regional geomorphologic response of coastal systems to environmental changes. Understanding how and why coasts have changed in the past can provide insight into modern coastal behavior, future coastal evolution, the extent and quality of sediment resources, and spatial variability in the resilience of coastal ecosystems, all of which inform coastal resource management.
Geologic Evolution of Cat Island, Mississippi
The geologic evolution of Cat Island has been influenced by deltaic, lagoonal/estuarine, tidal, and oceanographic processes, resulting in a complex stratigraphic record.
Science Support for the Mississippi Coastal Improvement Project
Since 2007, the USGS (with NPS and USACE) has been mapping the seafloor and substrate around the Mississippi barrier islands to characterize the near-surface stratigraphy and identify the influence it has on island evolution and fate.
Integrating Mapping and Modeling to Support the Restoration of Bird Nesting Habitat at Breton Island National Wildlife Refuge
In response to storms, reduced sediment supply, and sea-level rise, Breton Island is rapidly deteriorating, impacting the available nesting habitat of endangered seabirds. This study provides critical information regarding the physical environment of the island system.
Barrier Island Comprehensive Monitoring
Historical and newly acquired data were used to assess and monitor changes in the aerial and subaqueous extent of islands, habitat types, sediment properties, environmental processes, and vegetation composition.
Subsidence and Coastal Geomorphic Change in South-Central Louisiana
New methods will investigate coastal subsidence on and around barrier islands before and after restoration.
Research tasks associated with this project are listed below.
Below are publications associated with this project.
Geophysical data from offshore of the Gulf Islands National Seashore, Cat Island to Western Horn Island, Mississippi
The shallow stratigraphy and sand resources offshore of the Mississippi Barrier Islands
Archive of Side Scan Sonar and Swath Bathymetry Data collected during USGS Cruise 10CCT02 Offshore of Petit Bois Island Including Petit Bois Pass, Gulf Islands National Seashore, Mississippi, March 2010
Hurricane impact and recovery shoreline change analysis of the Chandeleur Islands, Louisiana, USA: 1855 to 2005
Archive of digital Chirp subbottom profile data collected during USGS cruises 10CCT01, 10CCT02, and 10CCT03, Mississippi and Alabama Gulf Islands, March and April 2010
Accuracy of EAARL lidar ground elevations using a bare-earth algorithm in marsh and beach grasses on the Chandeleur Islands, Louisiana
Subsurface control on seafloor erosional processes offshore of the Chandeleur Islands, Louisiana
Evolution and preservation potential of fluvial and transgressive deposits on the Louisiana inner shelf: Understanding depositional processes to support coastal management
Sand Resources, Regional Geology, and Coastal Processes of the Chandeleur Islands Coastal System: an Evaluation of the Breton National Wildlife Refuge
Delta lobe degradation and hurricane impacts governing large-scale coastal behavior, South-central Louisiana, USA
Bathymetric survey of the nearshore from Belle Pass to Caminada Pass, Louisiana: Methods and data report
Below are partners associated with this project.