Robert Jenkins
Robert Jenkins is a Physical Scientist at the St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida.
Science and Products
Estuarine Shoreline, Upland Boundary, and Marsh Habitat Change Analyses for the Point Aux Chenes and Grand Bay Estuary Systems, Mississippi and Alabama Estuarine Shoreline, Upland Boundary, and Marsh Habitat Change Analyses for the Point Aux Chenes and Grand Bay Estuary Systems, Mississippi and Alabama
Coastal marshes across the Northern Gulf of Mexico are critical ecosystems, providing wildlife habitat, nursery for many species of fish, a carbon sink, and protection of communities from storm surge, but are vulnerable to coastal hazards, such as wave attack, sea level rise, and subsidence. While many marshes accrete vertically to compensate for rising sea level, marsh loss can occur...
Detailed Grain-Size Data of Estuarine, Barrier Island, and Shoreface Environments Around Dauphin Island, Alabama, USA Detailed Grain-Size Data of Estuarine, Barrier Island, and Shoreface Environments Around Dauphin Island, Alabama, USA
In 2015, scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC) conducted sediment sampling surveys on and around the barrier islands of Dauphin Island and Little Dauphin Island, Mobile County, Alabama (AL). The study investigated the surficial sediment surrounding Dauphin Island and surrounding environments to inform sediment transport...
Model Sensitivity to Sediment Parameters and Bed Composition in Delft3D: Model Output Model Sensitivity to Sediment Parameters and Bed Composition in Delft3D: Model Output
The sensitivity to sediment parameterization and initial bed configuration on sediment transport processes and morphological evolution are assessed through process-based numerical modeling. Six sensitivity cases using a previously validated model for Dauphin Island, (Alabama) were modeled using Delft3D (developed by Deltares) to understand impacts on bed level morphology, barrier island...
Modeling the Effects of Large-scale Interior Headland Restoration on Tidal Hydrodynamics and Salinity Transport in an Open Coast, Marine-dominant Estuary: Model Input and Results Modeling the Effects of Large-scale Interior Headland Restoration on Tidal Hydrodynamics and Salinity Transport in an Open Coast, Marine-dominant Estuary: Model Input and Results
The effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in the Grand Bay, Alabama (AL) estuary was assessed using a two-dimensional Discontinous-Galerkin Shallow Water Equations (DG-SWEM) model. Three restoration alternatives were simulated: 1) no action (herein referred to as na); 2) reconstruction of the Grand Batture Island (herein...
Modeling the Effects of Interior Headland Restoration on Estuarine Sediment Transport Processes in a Marine-Dominant Estuary: Delft3D Model Output Modeling the Effects of Interior Headland Restoration on Estuarine Sediment Transport Processes in a Marine-Dominant Estuary: Delft3D Model Output
The effects of interior headland restoration on estuarine sediment transport processes are assessed through process-based numerical modeling. Three proposed interior headland restoration scenarios in the Grand Bay estuary (Mississippi/Alabama) are modeled using Delft3D (developed by Deltares) to understand impacts on suspended sediment concentrations, bed level morphology and sediment...
Assessing habitat change and migration of barrier islands Assessing habitat change and migration of barrier islands
A barrier island habitat prediction model was used to forecast barrier island habitats (for example, beach, dune, intertidal marsh, and woody vegetation) for Dauphin Island, Alabama, based on potential island configurations associated with a variety of restoration measures and varying future conditions of storminess and sea level (Enwright and others, 2020). This USGS data release...
An expert elicitation to inform coastal management decision-making for mitigating future hazards An expert elicitation to inform coastal management decision-making for mitigating future hazards
A scientific expert elicitation was conducted to address the feasibility of restoring coastal environments in response to future hazards to best meet management objectives. Subject matter experts produced probabilistic estimates of coastal change metrics used to evaluate decision objectives and alternatives informed by a stakeholder advisory group. Changes in salt marsh extents, storm...
Authors
Davina Passeri, Matthew Richardson, Julien Martin, Simeon Yurek, Karim Alizad, Matthew V. Bilskie, James Flocks, Donya P. Frank-Gilchrist, Robert Jenkins, Rangley C. Mickey, Margaret L. Palmsten, Christopher F. Smith, Kathryn Smith, Sara Zeigler
Shifts in marsh erosion, migration, and wave exposure over nearly two centuries of sea-level rise in the Gulf of Mexico Shifts in marsh erosion, migration, and wave exposure over nearly two centuries of sea-level rise in the Gulf of Mexico
Coastal wetlands are economically important ecosystems, but are at risk to erosion from waves, storms, and sea level rise. However, marshes can persist under rising sea level through vertical accretion and migration into adjacent higher-elevation habitats. We measured rates of marsh shoreline change and migration and compared the results for historical and modern periods in a largely...
Authors
Kathryn Smith, Joseph F. Terrano, Robert L. Jenkins, Jonathan L Pitchford, Davina Passeri, Christopher G. Smith
Model sensitivity analysis for coastal morphodynamics: Investigating sediment parameters and bed composition in Delft3D Model sensitivity analysis for coastal morphodynamics: Investigating sediment parameters and bed composition in Delft3D
Numerical simulation of sediment transport and subsequent morphological evolution rely on accurate parameterizations of sediment characteristics. However, these data are often not available or are spatially and/or temporally limited. This study approaches the problem of limited sediment grain-size data with a series of simulations assessing model sensitivity to sediment parameters and...
Authors
Robert L. Jenkins, Christopher G. Smith, Davina Passeri, Alisha M. Ellis
Modeling the effects of interior headland restoration on estuarine sediment transport processes in a marine-dominant estuary Modeling the effects of interior headland restoration on estuarine sediment transport processes in a marine-dominant estuary
The effects of interior headland restoration on estuarine sediment transport processes were assessed through process-based numerical modeling. Three proposed interior headland restoration scenarios in the Grand Bay estuary (Mississippi/Alabama) were modeled using Delft3D to understand impacts on suspended sediment concentrations, bed level morphology, and sediment fluxes under present...
Authors
Robert L. Jenkins, Davina Passeri, Christopher G. Smith, David M. Thompson, Kathryn Smith
Modeling the effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine-dominant estuary Modeling the effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine-dominant estuary
The effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine dominant estuary (Grand Bay, Alabama, U.S.A) are investigated using a two-dimensional model, the Discontinuous-Galerkin Shallow Water Equations Model (DG-SWEM). Three restoration alternatives are simulated for present-day conditions, as well as under 0.5 m of...
Authors
Davina Passeri, Robert L. Jenkins, Autumn C. Poisson, Matthew V. Bilskie, Peter Bacopoulos
Assessing habitat change and migration of barrier islands Assessing habitat change and migration of barrier islands
Barrier islands are dynamic environments that experience gradual change from waves, tides, and currents, and rapid change from extreme storms. These islands are expected to change drastically over the coming century due to accelerated sea-level rise and changes in frequency and intensity of storm events. The dynamic nature of barrier islands coupled with the importance of these...
Authors
Nicholas Enwright, Lei Wang, P. Soupy Dalyander, Hongqing Wang, Michael Osland, Rangley C. Mickey, Robert L. Jenkins, Elizabeth Godsey
Science and Products
Estuarine Shoreline, Upland Boundary, and Marsh Habitat Change Analyses for the Point Aux Chenes and Grand Bay Estuary Systems, Mississippi and Alabama Estuarine Shoreline, Upland Boundary, and Marsh Habitat Change Analyses for the Point Aux Chenes and Grand Bay Estuary Systems, Mississippi and Alabama
Coastal marshes across the Northern Gulf of Mexico are critical ecosystems, providing wildlife habitat, nursery for many species of fish, a carbon sink, and protection of communities from storm surge, but are vulnerable to coastal hazards, such as wave attack, sea level rise, and subsidence. While many marshes accrete vertically to compensate for rising sea level, marsh loss can occur...
Detailed Grain-Size Data of Estuarine, Barrier Island, and Shoreface Environments Around Dauphin Island, Alabama, USA Detailed Grain-Size Data of Estuarine, Barrier Island, and Shoreface Environments Around Dauphin Island, Alabama, USA
In 2015, scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC) conducted sediment sampling surveys on and around the barrier islands of Dauphin Island and Little Dauphin Island, Mobile County, Alabama (AL). The study investigated the surficial sediment surrounding Dauphin Island and surrounding environments to inform sediment transport...
Model Sensitivity to Sediment Parameters and Bed Composition in Delft3D: Model Output Model Sensitivity to Sediment Parameters and Bed Composition in Delft3D: Model Output
The sensitivity to sediment parameterization and initial bed configuration on sediment transport processes and morphological evolution are assessed through process-based numerical modeling. Six sensitivity cases using a previously validated model for Dauphin Island, (Alabama) were modeled using Delft3D (developed by Deltares) to understand impacts on bed level morphology, barrier island...
Modeling the Effects of Large-scale Interior Headland Restoration on Tidal Hydrodynamics and Salinity Transport in an Open Coast, Marine-dominant Estuary: Model Input and Results Modeling the Effects of Large-scale Interior Headland Restoration on Tidal Hydrodynamics and Salinity Transport in an Open Coast, Marine-dominant Estuary: Model Input and Results
The effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in the Grand Bay, Alabama (AL) estuary was assessed using a two-dimensional Discontinous-Galerkin Shallow Water Equations (DG-SWEM) model. Three restoration alternatives were simulated: 1) no action (herein referred to as na); 2) reconstruction of the Grand Batture Island (herein...
Modeling the Effects of Interior Headland Restoration on Estuarine Sediment Transport Processes in a Marine-Dominant Estuary: Delft3D Model Output Modeling the Effects of Interior Headland Restoration on Estuarine Sediment Transport Processes in a Marine-Dominant Estuary: Delft3D Model Output
The effects of interior headland restoration on estuarine sediment transport processes are assessed through process-based numerical modeling. Three proposed interior headland restoration scenarios in the Grand Bay estuary (Mississippi/Alabama) are modeled using Delft3D (developed by Deltares) to understand impacts on suspended sediment concentrations, bed level morphology and sediment...
Assessing habitat change and migration of barrier islands Assessing habitat change and migration of barrier islands
A barrier island habitat prediction model was used to forecast barrier island habitats (for example, beach, dune, intertidal marsh, and woody vegetation) for Dauphin Island, Alabama, based on potential island configurations associated with a variety of restoration measures and varying future conditions of storminess and sea level (Enwright and others, 2020). This USGS data release...
An expert elicitation to inform coastal management decision-making for mitigating future hazards An expert elicitation to inform coastal management decision-making for mitigating future hazards
A scientific expert elicitation was conducted to address the feasibility of restoring coastal environments in response to future hazards to best meet management objectives. Subject matter experts produced probabilistic estimates of coastal change metrics used to evaluate decision objectives and alternatives informed by a stakeholder advisory group. Changes in salt marsh extents, storm...
Authors
Davina Passeri, Matthew Richardson, Julien Martin, Simeon Yurek, Karim Alizad, Matthew V. Bilskie, James Flocks, Donya P. Frank-Gilchrist, Robert Jenkins, Rangley C. Mickey, Margaret L. Palmsten, Christopher F. Smith, Kathryn Smith, Sara Zeigler
Shifts in marsh erosion, migration, and wave exposure over nearly two centuries of sea-level rise in the Gulf of Mexico Shifts in marsh erosion, migration, and wave exposure over nearly two centuries of sea-level rise in the Gulf of Mexico
Coastal wetlands are economically important ecosystems, but are at risk to erosion from waves, storms, and sea level rise. However, marshes can persist under rising sea level through vertical accretion and migration into adjacent higher-elevation habitats. We measured rates of marsh shoreline change and migration and compared the results for historical and modern periods in a largely...
Authors
Kathryn Smith, Joseph F. Terrano, Robert L. Jenkins, Jonathan L Pitchford, Davina Passeri, Christopher G. Smith
Model sensitivity analysis for coastal morphodynamics: Investigating sediment parameters and bed composition in Delft3D Model sensitivity analysis for coastal morphodynamics: Investigating sediment parameters and bed composition in Delft3D
Numerical simulation of sediment transport and subsequent morphological evolution rely on accurate parameterizations of sediment characteristics. However, these data are often not available or are spatially and/or temporally limited. This study approaches the problem of limited sediment grain-size data with a series of simulations assessing model sensitivity to sediment parameters and...
Authors
Robert L. Jenkins, Christopher G. Smith, Davina Passeri, Alisha M. Ellis
Modeling the effects of interior headland restoration on estuarine sediment transport processes in a marine-dominant estuary Modeling the effects of interior headland restoration on estuarine sediment transport processes in a marine-dominant estuary
The effects of interior headland restoration on estuarine sediment transport processes were assessed through process-based numerical modeling. Three proposed interior headland restoration scenarios in the Grand Bay estuary (Mississippi/Alabama) were modeled using Delft3D to understand impacts on suspended sediment concentrations, bed level morphology, and sediment fluxes under present...
Authors
Robert L. Jenkins, Davina Passeri, Christopher G. Smith, David M. Thompson, Kathryn Smith
Modeling the effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine-dominant estuary Modeling the effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine-dominant estuary
The effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine dominant estuary (Grand Bay, Alabama, U.S.A) are investigated using a two-dimensional model, the Discontinuous-Galerkin Shallow Water Equations Model (DG-SWEM). Three restoration alternatives are simulated for present-day conditions, as well as under 0.5 m of...
Authors
Davina Passeri, Robert L. Jenkins, Autumn C. Poisson, Matthew V. Bilskie, Peter Bacopoulos
Assessing habitat change and migration of barrier islands Assessing habitat change and migration of barrier islands
Barrier islands are dynamic environments that experience gradual change from waves, tides, and currents, and rapid change from extreme storms. These islands are expected to change drastically over the coming century due to accelerated sea-level rise and changes in frequency and intensity of storm events. The dynamic nature of barrier islands coupled with the importance of these...
Authors
Nicholas Enwright, Lei Wang, P. Soupy Dalyander, Hongqing Wang, Michael Osland, Rangley C. Mickey, Robert L. Jenkins, Elizabeth Godsey