Robert Jenkins
Robert Jenkins is a Physical Scientist at the St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida.
Science and Products
Dauphin Island Decadal Forecast Evolution Model Inputs and Results Dauphin Island Decadal Forecast Evolution Model Inputs and Results
The model input and output of topography and bathymetry values resulting from forecast simulations of coupled modeling scenarios occurring between 2015 and 2025 at Dauphin Island, Alabama, and described in U.S. Geological Survey (USGS) Open-File Report 2020-1001 (https://doi.org/10.3133/ofr20201001), are provided here. For further information regarding model input generation and...
Dauphin Island Decadal Hindcast Model Inputs and Results Dauphin Island Decadal Hindcast Model Inputs and Results
The model input and output of bathymetry and topography elevations resulting from a deterministic simulation from 2004 to 2015 at Dauphin Island, Alabama, as described in Mickey and others (2020), are provided here. For further information regarding model input generation and visualization of model output topography and bathymetry refer to Mickey and others (2020). For more information...
Mobile Harbor Navigation Channel Delft3D Model Inputs and Results Mobile Harbor Navigation Channel Delft3D Model Inputs and Results
The Delft3D model inputs and outputs of bed levels resulting from the simulations of proposed navigation channel deepening and widening in Mobile Harbor, Alabama, as described in USGS Open-File Report 2018-1123, are provided here. For further information regarding model input generation and visualization of model output elevations, refer to USGS Open-File Report 2018-1123.
Laboratory Observations of Artificial Sand and Oil Agglomerates Video and Velocity Data Laboratory Observations of Artificial Sand and Oil Agglomerates Video and Velocity Data
The U.S. Geological Survey conducted experiments during March of 2014 to expand the available data on sand and oil agglomerate motion; test shear stress based incipient motion parameterizations in a controlled, laboratory setting; and directly observe sand and oil agglomerate exhumation and burial processes. Experiments were carried out at the Naval Research Laboratory, Stennis Space...
The roles of storminess and sea level rise in decadal barrier island evolution The roles of storminess and sea level rise in decadal barrier island evolution
Models of alongshore sediment transport during quiescent conditions, storm‐driven barrier island morphology, and poststorm dune recovery are integrated to assess decadal barrier island evolution under scenarios of increased sea levels and variability in storminess (intensity and frequency). Model results indicate barrier island response regimes of keeping pace, narrowing, flattening...
Authors
Davina Passeri, P. Soupy Dalyander, Joseph W. Long, Rangley C. Mickey, Robert L. Jenkins, David M. Thompson, Nathaniel G. Plant, Elizabeth Godsey, Victor Gonzalez
Development of a modeling framework for predicting decadal barrier island evolution Development of a modeling framework for predicting decadal barrier island evolution
Predicting the decadal evolution of barrier island systems is important for coastal managers who propose restoration or preservation alternatives aimed at increasing the resiliency of the island and its associated habitats or communities. Existing numerical models for simulating morphologic changes typically include either long-term (for example, longshore transport under quiescent...
Authors
Rangley C. Mickey, Joseph W. Long, P. Soupy Dalyander, Robert L. Jenkins, David M. Thompson, Davina Passeri, Nathaniel G. Plant
Application of decadal modeling approach to forecast barrier island evolution, Dauphin Island, Alabama Application of decadal modeling approach to forecast barrier island evolution, Dauphin Island, Alabama
Forecasting barrier island evolution provides coastal managers and stakeholders the ability to assess the resiliency of these important coastal environments that are home to both established communities and existing natural habitats. This study uses an established coupled model framework to assess how Dauphin Island, Alabama, responds to various storm and sea-level change scenarios...
Authors
Rangley C. Mickey, Elizabeth Godsey, P. Soupy Dalyander, Victor Gonzalez, Robert L. Jenkins, Joseph W. Long, David M. Thompson, Nathaniel G. Plant
Development of a process-based littoral sediment transport model for Dauphin Island, Alabama Development of a process-based littoral sediment transport model for Dauphin Island, Alabama
Dauphin Island, Alabama, located in the Northern Gulf of Mexico just outside of Mobile Bay, is Alabama’s only barrier island and provides an array of historical, natural, and economic resources. The dynamic island shoreline of Dauphin Island evolved across time scales while constantly acted upon by waves and currents during both storms and calm periods. Reductions in the vulnerability...
Authors
Robert L. Jenkins, Joseph W. Long, P. Soupy Dalyander, David M. Thompson, Rangley C. Mickey
Effects of proposed navigation channel improvements on sediment transport in Mobile Harbor, Alabama Effects of proposed navigation channel improvements on sediment transport in Mobile Harbor, Alabama
A Delft3D model was developed to evaluate the potential effects of proposed navigation channel deepening and widening in Mobile Harbor, Alabama. The model performance was assessed through comparisons of modeled and observed data of water levels, velocities, and bed level changes; the model captured hydrodynamic and sediment transport patterns in the study area with skill. The validated...
Authors
Davina Passeri, Joseph W. Long, Robert L. Jenkins, David M. Thompson
Laboratory observations of artificial sand and oil agglomerates Laboratory observations of artificial sand and oil agglomerates
Sand and oil agglomerates (SOAs) form when weathered oil reaches the surf zone and combines with suspended sediments. The presence of large SOAs in the form of thick mats (up to 10 centimeters [cm] in height and up to 10 square meters [m2] in area) and smaller SOAs, sometimes referred to as surface residual balls (SRBs), may lead to the re-oiling of beaches previously affected by an oil...
Authors
Robert L. Jenkins, P. Soupy Dalyander, Allison Penko, Joseph W. Long
Science and Products
Dauphin Island Decadal Forecast Evolution Model Inputs and Results Dauphin Island Decadal Forecast Evolution Model Inputs and Results
The model input and output of topography and bathymetry values resulting from forecast simulations of coupled modeling scenarios occurring between 2015 and 2025 at Dauphin Island, Alabama, and described in U.S. Geological Survey (USGS) Open-File Report 2020-1001 (https://doi.org/10.3133/ofr20201001), are provided here. For further information regarding model input generation and...
Dauphin Island Decadal Hindcast Model Inputs and Results Dauphin Island Decadal Hindcast Model Inputs and Results
The model input and output of bathymetry and topography elevations resulting from a deterministic simulation from 2004 to 2015 at Dauphin Island, Alabama, as described in Mickey and others (2020), are provided here. For further information regarding model input generation and visualization of model output topography and bathymetry refer to Mickey and others (2020). For more information...
Mobile Harbor Navigation Channel Delft3D Model Inputs and Results Mobile Harbor Navigation Channel Delft3D Model Inputs and Results
The Delft3D model inputs and outputs of bed levels resulting from the simulations of proposed navigation channel deepening and widening in Mobile Harbor, Alabama, as described in USGS Open-File Report 2018-1123, are provided here. For further information regarding model input generation and visualization of model output elevations, refer to USGS Open-File Report 2018-1123.
Laboratory Observations of Artificial Sand and Oil Agglomerates Video and Velocity Data Laboratory Observations of Artificial Sand and Oil Agglomerates Video and Velocity Data
The U.S. Geological Survey conducted experiments during March of 2014 to expand the available data on sand and oil agglomerate motion; test shear stress based incipient motion parameterizations in a controlled, laboratory setting; and directly observe sand and oil agglomerate exhumation and burial processes. Experiments were carried out at the Naval Research Laboratory, Stennis Space...
The roles of storminess and sea level rise in decadal barrier island evolution The roles of storminess and sea level rise in decadal barrier island evolution
Models of alongshore sediment transport during quiescent conditions, storm‐driven barrier island morphology, and poststorm dune recovery are integrated to assess decadal barrier island evolution under scenarios of increased sea levels and variability in storminess (intensity and frequency). Model results indicate barrier island response regimes of keeping pace, narrowing, flattening...
Authors
Davina Passeri, P. Soupy Dalyander, Joseph W. Long, Rangley C. Mickey, Robert L. Jenkins, David M. Thompson, Nathaniel G. Plant, Elizabeth Godsey, Victor Gonzalez
Development of a modeling framework for predicting decadal barrier island evolution Development of a modeling framework for predicting decadal barrier island evolution
Predicting the decadal evolution of barrier island systems is important for coastal managers who propose restoration or preservation alternatives aimed at increasing the resiliency of the island and its associated habitats or communities. Existing numerical models for simulating morphologic changes typically include either long-term (for example, longshore transport under quiescent...
Authors
Rangley C. Mickey, Joseph W. Long, P. Soupy Dalyander, Robert L. Jenkins, David M. Thompson, Davina Passeri, Nathaniel G. Plant
Application of decadal modeling approach to forecast barrier island evolution, Dauphin Island, Alabama Application of decadal modeling approach to forecast barrier island evolution, Dauphin Island, Alabama
Forecasting barrier island evolution provides coastal managers and stakeholders the ability to assess the resiliency of these important coastal environments that are home to both established communities and existing natural habitats. This study uses an established coupled model framework to assess how Dauphin Island, Alabama, responds to various storm and sea-level change scenarios...
Authors
Rangley C. Mickey, Elizabeth Godsey, P. Soupy Dalyander, Victor Gonzalez, Robert L. Jenkins, Joseph W. Long, David M. Thompson, Nathaniel G. Plant
Development of a process-based littoral sediment transport model for Dauphin Island, Alabama Development of a process-based littoral sediment transport model for Dauphin Island, Alabama
Dauphin Island, Alabama, located in the Northern Gulf of Mexico just outside of Mobile Bay, is Alabama’s only barrier island and provides an array of historical, natural, and economic resources. The dynamic island shoreline of Dauphin Island evolved across time scales while constantly acted upon by waves and currents during both storms and calm periods. Reductions in the vulnerability...
Authors
Robert L. Jenkins, Joseph W. Long, P. Soupy Dalyander, David M. Thompson, Rangley C. Mickey
Effects of proposed navigation channel improvements on sediment transport in Mobile Harbor, Alabama Effects of proposed navigation channel improvements on sediment transport in Mobile Harbor, Alabama
A Delft3D model was developed to evaluate the potential effects of proposed navigation channel deepening and widening in Mobile Harbor, Alabama. The model performance was assessed through comparisons of modeled and observed data of water levels, velocities, and bed level changes; the model captured hydrodynamic and sediment transport patterns in the study area with skill. The validated...
Authors
Davina Passeri, Joseph W. Long, Robert L. Jenkins, David M. Thompson
Laboratory observations of artificial sand and oil agglomerates Laboratory observations of artificial sand and oil agglomerates
Sand and oil agglomerates (SOAs) form when weathered oil reaches the surf zone and combines with suspended sediments. The presence of large SOAs in the form of thick mats (up to 10 centimeters [cm] in height and up to 10 square meters [m2] in area) and smaller SOAs, sometimes referred to as surface residual balls (SRBs), may lead to the re-oiling of beaches previously affected by an oil...
Authors
Robert L. Jenkins, P. Soupy Dalyander, Allison Penko, Joseph W. Long