Brady Couvillion
Brady Couvillion is a Geographer with the Coastal Restoration Assessment Branch of the USGS Wetland and Aquatic Research Center in Baton Rouge, Louisiana.
His research topics commonly include wetland morphology, vegetation monitoring, applications of remote sensing to natural resource assessments, and landscape modeling/forecasting.
Science and Products
Filter Total Items: 39
Aboveground and belowground vegetation biomass and nutrients Aboveground and belowground vegetation biomass and nutrients
Wetland biomass production, decomposition, and storage of organic matter govern estuarine energy transfer, in addition to determining the physical sustainability of marshes exposed to sea-level rise and subsidence. Peak standing biomass represents an indicator of wetland production or productivity but does not account for turnover (production and decomposition) of different pools of...
Authors
Todd M. Folse, Thomas E. McGinnis, Leigh A. Sharp, Jonathan L. West, Melissa K. Hymel, John P. Troutman, Dona Weifenbach, William M. Boshart, Laurie B. Rodrigue, Danielle C. Richardi, W. Bernard Wood, C. Mike Miller, Elizabeth M. Robinson, Angelina M. Freeman, Camille Stagg, Brady Couvillion, Holly Beck
Quantifying hydrologic controls on local- and landscape-scale indicators of coastal wetland loss Quantifying hydrologic controls on local- and landscape-scale indicators of coastal wetland loss
Background and Aims Coastal wetlands have evolved to withstand stressful abiotic conditions through the maintenance of hydrologic feedbacks among vegetation production and flooding. However, disruption of these feedbacks can lead to ecosystem collapse, or a regime shift from vegetated wetland to open water. To prevent the loss of critical coastal wetland habitat, we must improve...
Authors
Camille Stagg, Michael Osland, Jena A. Moon, Courtney Hall, Laura Feher, William R. Jones, Brady Couvillion, Stephen B. Hartley, William Vervaeke
Basin-scale model for predicting marsh edge erosion Basin-scale model for predicting marsh edge erosion
Recent attempts to relate marsh edge retreat rate to wave power have met varying levels of success. Schwimmer (2001) correlated wave power to marsh boundary retreat rates over a five-year period along sites within Rehoboth Bay, Delaware, USA. Marani et al. (2011) derived a linear relationship between volumetric retreat rate and mean wave power density using Buckingham’s theorem of...
Authors
Navid H. Jafari, Qin J. Chen, Brady Couvillion, Cody L. Johnson, Thomas Everett
Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model
Determining the spatial distribution of coastal foundation species is essential to accurately determine restoration goals, predict the ecological effects of climate change, and develop habitat management strategies. Mapping the distribution of submerged aquatic vegetation (SAV) species assemblages, which provide important habitat resource and ecological services in Louisiana, has been...
Authors
Kristin DeMarco, Brady Couvillion, Stuart Brown, Megan La Peyre
Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration
Large Mississippi River (MR) diversions (peak water flow >1416 m3/s and sediment loads >165 kg/s) have been proposed as part of a suite of coastal restoration projects and are expected to rehabilitate and rebuild wetlands to alleviate the significant historic wetland loss in coastal Louisiana. These coastal wetlands are undergoing increasing eustatic sea‐level rise, land subsidence...
Authors
Hongqing Wang, Gregory D. Steyer, Brady Couvillion, Holly J. Beck, John M Rybczyk, Victor H. Rivera-Monroy, Ken W. Krauss, Jenneke M. Visser
Delineation of marsh types and marsh-type change in coastal Louisiana for 2007 and 2013 Delineation of marsh types and marsh-type change in coastal Louisiana for 2007 and 2013
The Bureau of Ocean Energy Management researchers often require detailed information regarding emergent marsh vegetation types (such as fresh, intermediate, brackish, and saline) for modeling habitat capacities and mitigation. In response, the U.S. Geological Survey in cooperation with the Bureau of Ocean Energy Management produced a detailed change classification of emergent marsh...
Authors
Stephen B. Hartley, Brady R. Couvillion, Nicholas M. Enwright
Filter Total Items: 15
Gulf Land Loss Change Assessment: A Cooperative Study with the Bureau of Ocean and Energy Management
Eighty-five percent of the coastal wetland loss in the contiguous United States occurs in the Gulf. Documenting and understanding the occurrence of this wetland loss will provide for effective planning, mitigation, and restoration activities.
Hyper-Temporal Land Area Change Rates in Coastal Louisiana from 1973 to 2015
This study analyzes changes in the extent of land in coastal Louisiana by using an average of 81 datasets (multiple dates of satellite data from 1973 to 2014) for summarizing land and water areas.
Morphology Modeling in Support of the Louisiana Coastal Master Plan
In support of Louisiana’s 2012 Coastal Master Plan, USGS WARC scientists have developed a spatially explicit wetland morphology model and coupled it with other predictive models to help predict the effects of protection and restoration projects.
Filter Total Items: 45
Coastwide Reference Monitoring System (CRMS) 2005, 2008, 2012, 2015/2016 and 2018 land-water matrices Coastwide Reference Monitoring System (CRMS) 2005, 2008, 2012, 2015/2016 and 2018 land-water matrices
Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in Louisiana rely on monitoring to determine the efficacy of these projects. The Coastwide Reference Monitoring System (CRMS) was developed to assist in a multiple-reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling for...
Coastwide Reference Monitoring System (CRMS) 2018 land-water classification data Coastwide Reference Monitoring System (CRMS) 2018 land-water classification data
Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in Louisiana rely on monitoring efforts to determine the efficacy of these efforts. The Coastwide Reference Monitoring System (CRMS) was developed to assist in a multiple-reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling...
Coastal wetland area change in the Gulf of Mexico, 1985-2020 Coastal wetland area change in the Gulf of Mexico, 1985-2020
These data were used to quantify land area change in a wetlands possible zone of coastal wetlands during a 1985-2020 observation period. The datasets presented in this data release represent annual median estimates of the fractional amount of land, floating aquatic vegetation, submerged aquatic vegetation, and water per Landsat pixel. These data are intended for coarse-scale analysis of...
Bayou Dupont Marsh and Ridge Creation (BA-48): 2016 land-water classification Bayou Dupont Marsh and Ridge Creation (BA-48): 2016 land-water classification
The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Jonathan Davis Wetland Restoration (BA-20): 2018 land-water classification Jonathan Davis Wetland Restoration (BA-20): 2018 land-water classification
The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Seagrass habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island Seagrass habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island
A barrier island seagrass habitat suitability index (HSI) model was developed for the Alabama barrier island restoration assessment at Dauphin Island. Shoal grass (Halodule wrightii) was selected as the representative species for seagrass community near Dauphin Island waters since H. wrightii is the dominant species (>62%) of seagrass communities in this area due to its rapid growth and...
Science and Products
Filter Total Items: 39
Aboveground and belowground vegetation biomass and nutrients Aboveground and belowground vegetation biomass and nutrients
Wetland biomass production, decomposition, and storage of organic matter govern estuarine energy transfer, in addition to determining the physical sustainability of marshes exposed to sea-level rise and subsidence. Peak standing biomass represents an indicator of wetland production or productivity but does not account for turnover (production and decomposition) of different pools of...
Authors
Todd M. Folse, Thomas E. McGinnis, Leigh A. Sharp, Jonathan L. West, Melissa K. Hymel, John P. Troutman, Dona Weifenbach, William M. Boshart, Laurie B. Rodrigue, Danielle C. Richardi, W. Bernard Wood, C. Mike Miller, Elizabeth M. Robinson, Angelina M. Freeman, Camille Stagg, Brady Couvillion, Holly Beck
Quantifying hydrologic controls on local- and landscape-scale indicators of coastal wetland loss Quantifying hydrologic controls on local- and landscape-scale indicators of coastal wetland loss
Background and Aims Coastal wetlands have evolved to withstand stressful abiotic conditions through the maintenance of hydrologic feedbacks among vegetation production and flooding. However, disruption of these feedbacks can lead to ecosystem collapse, or a regime shift from vegetated wetland to open water. To prevent the loss of critical coastal wetland habitat, we must improve...
Authors
Camille Stagg, Michael Osland, Jena A. Moon, Courtney Hall, Laura Feher, William R. Jones, Brady Couvillion, Stephen B. Hartley, William Vervaeke
Basin-scale model for predicting marsh edge erosion Basin-scale model for predicting marsh edge erosion
Recent attempts to relate marsh edge retreat rate to wave power have met varying levels of success. Schwimmer (2001) correlated wave power to marsh boundary retreat rates over a five-year period along sites within Rehoboth Bay, Delaware, USA. Marani et al. (2011) derived a linear relationship between volumetric retreat rate and mean wave power density using Buckingham’s theorem of...
Authors
Navid H. Jafari, Qin J. Chen, Brady Couvillion, Cody L. Johnson, Thomas Everett
Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model
Determining the spatial distribution of coastal foundation species is essential to accurately determine restoration goals, predict the ecological effects of climate change, and develop habitat management strategies. Mapping the distribution of submerged aquatic vegetation (SAV) species assemblages, which provide important habitat resource and ecological services in Louisiana, has been...
Authors
Kristin DeMarco, Brady Couvillion, Stuart Brown, Megan La Peyre
Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration
Large Mississippi River (MR) diversions (peak water flow >1416 m3/s and sediment loads >165 kg/s) have been proposed as part of a suite of coastal restoration projects and are expected to rehabilitate and rebuild wetlands to alleviate the significant historic wetland loss in coastal Louisiana. These coastal wetlands are undergoing increasing eustatic sea‐level rise, land subsidence...
Authors
Hongqing Wang, Gregory D. Steyer, Brady Couvillion, Holly J. Beck, John M Rybczyk, Victor H. Rivera-Monroy, Ken W. Krauss, Jenneke M. Visser
Delineation of marsh types and marsh-type change in coastal Louisiana for 2007 and 2013 Delineation of marsh types and marsh-type change in coastal Louisiana for 2007 and 2013
The Bureau of Ocean Energy Management researchers often require detailed information regarding emergent marsh vegetation types (such as fresh, intermediate, brackish, and saline) for modeling habitat capacities and mitigation. In response, the U.S. Geological Survey in cooperation with the Bureau of Ocean Energy Management produced a detailed change classification of emergent marsh...
Authors
Stephen B. Hartley, Brady R. Couvillion, Nicholas M. Enwright
Filter Total Items: 15
Gulf Land Loss Change Assessment: A Cooperative Study with the Bureau of Ocean and Energy Management
Eighty-five percent of the coastal wetland loss in the contiguous United States occurs in the Gulf. Documenting and understanding the occurrence of this wetland loss will provide for effective planning, mitigation, and restoration activities.
Hyper-Temporal Land Area Change Rates in Coastal Louisiana from 1973 to 2015
This study analyzes changes in the extent of land in coastal Louisiana by using an average of 81 datasets (multiple dates of satellite data from 1973 to 2014) for summarizing land and water areas.
Morphology Modeling in Support of the Louisiana Coastal Master Plan
In support of Louisiana’s 2012 Coastal Master Plan, USGS WARC scientists have developed a spatially explicit wetland morphology model and coupled it with other predictive models to help predict the effects of protection and restoration projects.
Filter Total Items: 45
Coastwide Reference Monitoring System (CRMS) 2005, 2008, 2012, 2015/2016 and 2018 land-water matrices Coastwide Reference Monitoring System (CRMS) 2005, 2008, 2012, 2015/2016 and 2018 land-water matrices
Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in Louisiana rely on monitoring to determine the efficacy of these projects. The Coastwide Reference Monitoring System (CRMS) was developed to assist in a multiple-reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling for...
Coastwide Reference Monitoring System (CRMS) 2018 land-water classification data Coastwide Reference Monitoring System (CRMS) 2018 land-water classification data
Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in Louisiana rely on monitoring efforts to determine the efficacy of these efforts. The Coastwide Reference Monitoring System (CRMS) was developed to assist in a multiple-reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling...
Coastal wetland area change in the Gulf of Mexico, 1985-2020 Coastal wetland area change in the Gulf of Mexico, 1985-2020
These data were used to quantify land area change in a wetlands possible zone of coastal wetlands during a 1985-2020 observation period. The datasets presented in this data release represent annual median estimates of the fractional amount of land, floating aquatic vegetation, submerged aquatic vegetation, and water per Landsat pixel. These data are intended for coarse-scale analysis of...
Bayou Dupont Marsh and Ridge Creation (BA-48): 2016 land-water classification Bayou Dupont Marsh and Ridge Creation (BA-48): 2016 land-water classification
The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Jonathan Davis Wetland Restoration (BA-20): 2018 land-water classification Jonathan Davis Wetland Restoration (BA-20): 2018 land-water classification
The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Seagrass habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island Seagrass habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island
A barrier island seagrass habitat suitability index (HSI) model was developed for the Alabama barrier island restoration assessment at Dauphin Island. Shoal grass (Halodule wrightii) was selected as the representative species for seagrass community near Dauphin Island waters since H. wrightii is the dominant species (>62%) of seagrass communities in this area due to its rapid growth and...