Patricia (Soupy) Dalyander (Former Employee)
Science and Products
Filter Total Items: 51
Nearshore dynamics of artificial sand and oil agglomerates
Weathered oil can mix with sediment to form heavier-than-water sand and oil agglomerates (SOAs) that can cause beach re-oiling for years after a spill. Few studies have focused on the physical dynamics of SOAs. In this study, artificial SOAs (aSOAs) were created and deployed in the nearshore, and shear stress-based mobility formulations were assessed to predict SOA response. Prediction sensitivity
Authors
P. Soupy Dalyander, Nathaniel G. Plant, Joseph W. Long, Molly R. McLaughlin
Characteristics of storms driving wave-induced seafloor mobility on the U.S. East Coast continental shelf
This study investigates the relationship between spatial and temporal patterns of wave-driven sediment mobility events on the U.S. East Coast continental shelf and the characteristics of the storms responsible for them. Mobility events, defined as seafloor wave stress exceedance of the critical stress of 0.35 mm diameter sand (0.2160 Pa) for 12 or more hours, were identified from surface wave obse
Authors
P. Soupy Dalyander, Bradford Butman
Effects of proposed sediment borrow pits on nearshore wave climate and longshore sediment transport rate along Breton Island, Louisiana
As part of a plan to preserve bird habitat on Breton Island, the southernmost extent of the Chandeleur Islands and part of the Breton National Wildlife Refuge in Louisiana, the U.S. Fish and Wildlife Service plans to increase island elevation with sand supplied from offshore resources. Proposed sand extraction sites include areas offshore where the seafloor morphology suggests suitable quantities
Authors
Patricia (Soupy) Dalyander, Rangley C. Mickey, Joseph W. Long, James G. Flocks
Field observations of artificial sand and oil agglomerates
Oil that comes into the surf zone following spills, such as occurred during the 2010 Deepwater Horizon (DWH) blowout, can mix with local sediment to form heavier-than-water sand and oil agglomerates (SOAs), at times in the form of mats a few centimeters thick and tens of meters long. Smaller agglomerates that form in situ or pieces that break off of larger mats, sometimes referred to as surface re
Authors
Patricia (Soupy) Dalyander, Joseph W. Long, Nathaniel G. Plant, Molly R. McLaughlin, Rangley C. Mickey
The Gulf Coast Vulnerability Assessment: Mangrove, Tidal Emergent Marsh, Barrier Islands, and Oyster Reef
Climate, sea level rise, and urbanization are undergoing unprecedented levels of combined change and are expected to have large effects on natural resources—particularly along the Gulf of Mexico coastline (Gulf Coast). Management decisions to address these effects (i.e., adaptation) require an understanding of the relative vulnerability of various resources to these stressors. To meet this need, t
Authors
Amanda Watson, Joshua S. Reece, Blair Tirpak, Cynthia Kallio Edwards, Laura Geselbracht, Mark Woodrey, Megan K. LaPeyre, P. Soupy Dalyander
Inundation of a barrier island (Chandeleur Islands, Louisiana, USA) during a hurricane: Observed water-level gradients and modeled seaward sand transport
Large geomorphic changes to barrier islands may occur during inundation, when storm surge exceeds island elevation. Inundation occurs episodically and under energetic conditions that make quantitative observations difficult. We measured water levels on both sides of a barrier island in the northern Chandeleur Islands during inundation by Hurricane Isaac. Wind patterns caused the water levels to sl
Authors
Christopher R. Sherwood, Joseph W. Long, Patrick Dickhudt, P. Soupy Dalyander, David M. Thompson, Nathaniel G. Plant
Investigating the importance of sediment resuspension in Alexandrium fundyense cyst population dynamics in the Gulf of Maine
Cysts of Alexandrium fundyense, a dinoflagellate that causes toxic algal blooms in the Gulf of Maine, spend the winter as dormant cells in the upper layer of bottom sediment or the bottom nepheloid layer and germinate in spring to initiate new blooms. Erosion measurements were made on sediment cores collected at seven stations in the Gulf of Maine in the autumn of 2011 to explore if resuspension (
Authors
Bradford Butman, Alfredo L. Aretxabaleta, Patrick J. Dickhudt, P. Soupy Dalyander, Christopher R. Sherwood, Donald M. Anderson, Bruce A. Keafer, Richard P. Signell
A probabilistic method for constructing wave time-series at inshore locations using model scenarios
Continuous time-series of wave characteristics (height, period, and direction) are constructed using a base set of model scenarios and simple probabilistic methods. This approach utilizes an archive of computationally intensive, highly spatially resolved numerical wave model output to develop time-series of historical or future wave conditions without performing additional, continuous numerical si
Authors
Joseph W. Long, Nathaniel G. Plant, P. Soupy Dalyander, David M. Thompson
Predictions of barrier island berm evolution in a time-varying storm climatology
Low-lying barrier islands are ubiquitous features of the world's coastlines, and the processes responsible for their formation, maintenance, and destruction are related to the evolution of smaller, superimposed features including sand dunes, beach berms, and sandbars. The barrier island and its superimposed features interact with oceanographic forces (e.g., overwash) and exchange sediment with eac
Authors
Nathaniel G. Plant, James Flocks, Hilary F. Stockdon, Joseph W. Long, Kristy K. Guy, David M. Thompson, Jamie M. Cormier, Christopher G. Smith, Jennifer L. Miselis, P. Soupy Dalyander
Assessing mobility and redistribution patterns of sand and oil agglomerates in the surf zone
Heavier-than-water sand and oil agglomerates that formed in the surf zone following the Deepwater Horizon oil spill continued to cause beach re-oiling 3 years after initial stranding. To understand this phenomena and inform operational response now and for future spills, a numerical method to assess the mobility and alongshore movement of these “surface residual balls” (SRBs) was developed and app
Authors
P. Soupy Dalyander, Joesph W. Long, Nathaniel G. Plant, David M. Thompson
Near-bottom circulation and dispersion of sediment containing Alexandrium fundyense cysts in the Gulf of Maine during 2010-2011
The life cycle of Alexandrium fundyense in the Gulf of Maine includes a dormant cyst stage that spends the winter predominantly in the bottom sediment. Wave-current bottom stress caused by storms and tides induces resuspension of cyst-containing sediment during winter and spring. Resuspended sediment could be transported by water flow to different locations in the Gulf and the redistribution of se
Authors
Alfredo L. Aretxabaleta, Bradford Butman, Richard P. Signell, P. Soupy Dalyander, Christopher R. Sherwood, Vitalii A. Sheremet, Dennis J. McGillicuddy
Application of a hydrodynamic and sediment transport model for guidance of response efforts related to the Deepwater Horizon oil spill in the Northern Gulf of Mexico along the coast of Alabama and Florida
U.S. Geological Survey (USGS) scientists have provided a model-based assessment of transport and deposition of residual Deepwater Horizon oil along the shoreline within the northern Gulf of Mexico in the form of mixtures of sand and weathered oil, known as surface residual balls (SRBs). The results of this USGS research, in combination with results from other components of the overall study, will
Authors
Nathaniel G. Plant, Joseph W. Long, P. Soupy Dalyander, David M. Thompson, Ellen A. Raabe
Non-USGS Publications**
Dalyander, P.S., Cerco, C.F., 2010, Integration of a fish bioenergetics model into a spatially explicit water quality model: Application to menhaden in Chesapeake Bay, Ecological Modelling, Volume 221, Issue 16, 10 August 2010, Pages 1922-1933, ISSN 0304-3800, http://dx.doi.org/10.1016/j.ecolmodel.2010.05.002.
Dalyander, P.S., Gornushkin, I.B., Hahn, D.W., 2008, Numerical simulation of laser-induced breakdown spectroscopy--Modeling of aerosol analysis with finite diffusion and vaporization effects: Spectrochimica Acta Part B: Atomic Spectroscopy, Volume 63, Issue 2, February 2008, Pages 293-304, ISSN 0584-8547, http://dx.doi.org/10.1016/j.sab.2007.11.023.
Dalyander, P.S., and Hahn, D.W., 2008, Excimer Laser Photofragmentation/Fragment Detection for Analysis of the Oxygenated Hydrocarbon Ethyl-3-Ethyoxypropionate: Implications for Atmospheric Monitoring: Appl. Spectrosc. 62, 1028-1037, https://www.osapublishing.org/as/abstract.cfm?URI=as-62-9-1028
Dalyander, P.S., and Cerco, D.F., 2010, Integration of an individual-based fish bioenergetics model into a spatially explicit water quality model (CE-QUAL-ICM). Vicksburg, Miss: U.S. Army Engineer Research and Development Center.
Dalyander, P.S., Fischenich, J.C., 2010, Cemcat: Conceptual Ecological Model Construction Assistance Toolbox: Vicksburg, Miss: U.S. Army Corps of Engineers, Engineer Research and Development Center.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 51
Nearshore dynamics of artificial sand and oil agglomerates
Weathered oil can mix with sediment to form heavier-than-water sand and oil agglomerates (SOAs) that can cause beach re-oiling for years after a spill. Few studies have focused on the physical dynamics of SOAs. In this study, artificial SOAs (aSOAs) were created and deployed in the nearshore, and shear stress-based mobility formulations were assessed to predict SOA response. Prediction sensitivity
Authors
P. Soupy Dalyander, Nathaniel G. Plant, Joseph W. Long, Molly R. McLaughlin
Characteristics of storms driving wave-induced seafloor mobility on the U.S. East Coast continental shelf
This study investigates the relationship between spatial and temporal patterns of wave-driven sediment mobility events on the U.S. East Coast continental shelf and the characteristics of the storms responsible for them. Mobility events, defined as seafloor wave stress exceedance of the critical stress of 0.35 mm diameter sand (0.2160 Pa) for 12 or more hours, were identified from surface wave obse
Authors
P. Soupy Dalyander, Bradford Butman
Effects of proposed sediment borrow pits on nearshore wave climate and longshore sediment transport rate along Breton Island, Louisiana
As part of a plan to preserve bird habitat on Breton Island, the southernmost extent of the Chandeleur Islands and part of the Breton National Wildlife Refuge in Louisiana, the U.S. Fish and Wildlife Service plans to increase island elevation with sand supplied from offshore resources. Proposed sand extraction sites include areas offshore where the seafloor morphology suggests suitable quantities
Authors
Patricia (Soupy) Dalyander, Rangley C. Mickey, Joseph W. Long, James G. Flocks
Field observations of artificial sand and oil agglomerates
Oil that comes into the surf zone following spills, such as occurred during the 2010 Deepwater Horizon (DWH) blowout, can mix with local sediment to form heavier-than-water sand and oil agglomerates (SOAs), at times in the form of mats a few centimeters thick and tens of meters long. Smaller agglomerates that form in situ or pieces that break off of larger mats, sometimes referred to as surface re
Authors
Patricia (Soupy) Dalyander, Joseph W. Long, Nathaniel G. Plant, Molly R. McLaughlin, Rangley C. Mickey
The Gulf Coast Vulnerability Assessment: Mangrove, Tidal Emergent Marsh, Barrier Islands, and Oyster Reef
Climate, sea level rise, and urbanization are undergoing unprecedented levels of combined change and are expected to have large effects on natural resources—particularly along the Gulf of Mexico coastline (Gulf Coast). Management decisions to address these effects (i.e., adaptation) require an understanding of the relative vulnerability of various resources to these stressors. To meet this need, t
Authors
Amanda Watson, Joshua S. Reece, Blair Tirpak, Cynthia Kallio Edwards, Laura Geselbracht, Mark Woodrey, Megan K. LaPeyre, P. Soupy Dalyander
Inundation of a barrier island (Chandeleur Islands, Louisiana, USA) during a hurricane: Observed water-level gradients and modeled seaward sand transport
Large geomorphic changes to barrier islands may occur during inundation, when storm surge exceeds island elevation. Inundation occurs episodically and under energetic conditions that make quantitative observations difficult. We measured water levels on both sides of a barrier island in the northern Chandeleur Islands during inundation by Hurricane Isaac. Wind patterns caused the water levels to sl
Authors
Christopher R. Sherwood, Joseph W. Long, Patrick Dickhudt, P. Soupy Dalyander, David M. Thompson, Nathaniel G. Plant
Investigating the importance of sediment resuspension in Alexandrium fundyense cyst population dynamics in the Gulf of Maine
Cysts of Alexandrium fundyense, a dinoflagellate that causes toxic algal blooms in the Gulf of Maine, spend the winter as dormant cells in the upper layer of bottom sediment or the bottom nepheloid layer and germinate in spring to initiate new blooms. Erosion measurements were made on sediment cores collected at seven stations in the Gulf of Maine in the autumn of 2011 to explore if resuspension (
Authors
Bradford Butman, Alfredo L. Aretxabaleta, Patrick J. Dickhudt, P. Soupy Dalyander, Christopher R. Sherwood, Donald M. Anderson, Bruce A. Keafer, Richard P. Signell
A probabilistic method for constructing wave time-series at inshore locations using model scenarios
Continuous time-series of wave characteristics (height, period, and direction) are constructed using a base set of model scenarios and simple probabilistic methods. This approach utilizes an archive of computationally intensive, highly spatially resolved numerical wave model output to develop time-series of historical or future wave conditions without performing additional, continuous numerical si
Authors
Joseph W. Long, Nathaniel G. Plant, P. Soupy Dalyander, David M. Thompson
Predictions of barrier island berm evolution in a time-varying storm climatology
Low-lying barrier islands are ubiquitous features of the world's coastlines, and the processes responsible for their formation, maintenance, and destruction are related to the evolution of smaller, superimposed features including sand dunes, beach berms, and sandbars. The barrier island and its superimposed features interact with oceanographic forces (e.g., overwash) and exchange sediment with eac
Authors
Nathaniel G. Plant, James Flocks, Hilary F. Stockdon, Joseph W. Long, Kristy K. Guy, David M. Thompson, Jamie M. Cormier, Christopher G. Smith, Jennifer L. Miselis, P. Soupy Dalyander
Assessing mobility and redistribution patterns of sand and oil agglomerates in the surf zone
Heavier-than-water sand and oil agglomerates that formed in the surf zone following the Deepwater Horizon oil spill continued to cause beach re-oiling 3 years after initial stranding. To understand this phenomena and inform operational response now and for future spills, a numerical method to assess the mobility and alongshore movement of these “surface residual balls” (SRBs) was developed and app
Authors
P. Soupy Dalyander, Joesph W. Long, Nathaniel G. Plant, David M. Thompson
Near-bottom circulation and dispersion of sediment containing Alexandrium fundyense cysts in the Gulf of Maine during 2010-2011
The life cycle of Alexandrium fundyense in the Gulf of Maine includes a dormant cyst stage that spends the winter predominantly in the bottom sediment. Wave-current bottom stress caused by storms and tides induces resuspension of cyst-containing sediment during winter and spring. Resuspended sediment could be transported by water flow to different locations in the Gulf and the redistribution of se
Authors
Alfredo L. Aretxabaleta, Bradford Butman, Richard P. Signell, P. Soupy Dalyander, Christopher R. Sherwood, Vitalii A. Sheremet, Dennis J. McGillicuddy
Application of a hydrodynamic and sediment transport model for guidance of response efforts related to the Deepwater Horizon oil spill in the Northern Gulf of Mexico along the coast of Alabama and Florida
U.S. Geological Survey (USGS) scientists have provided a model-based assessment of transport and deposition of residual Deepwater Horizon oil along the shoreline within the northern Gulf of Mexico in the form of mixtures of sand and weathered oil, known as surface residual balls (SRBs). The results of this USGS research, in combination with results from other components of the overall study, will
Authors
Nathaniel G. Plant, Joseph W. Long, P. Soupy Dalyander, David M. Thompson, Ellen A. Raabe
Non-USGS Publications**
Dalyander, P.S., Cerco, C.F., 2010, Integration of a fish bioenergetics model into a spatially explicit water quality model: Application to menhaden in Chesapeake Bay, Ecological Modelling, Volume 221, Issue 16, 10 August 2010, Pages 1922-1933, ISSN 0304-3800, http://dx.doi.org/10.1016/j.ecolmodel.2010.05.002.
Dalyander, P.S., Gornushkin, I.B., Hahn, D.W., 2008, Numerical simulation of laser-induced breakdown spectroscopy--Modeling of aerosol analysis with finite diffusion and vaporization effects: Spectrochimica Acta Part B: Atomic Spectroscopy, Volume 63, Issue 2, February 2008, Pages 293-304, ISSN 0584-8547, http://dx.doi.org/10.1016/j.sab.2007.11.023.
Dalyander, P.S., and Hahn, D.W., 2008, Excimer Laser Photofragmentation/Fragment Detection for Analysis of the Oxygenated Hydrocarbon Ethyl-3-Ethyoxypropionate: Implications for Atmospheric Monitoring: Appl. Spectrosc. 62, 1028-1037, https://www.osapublishing.org/as/abstract.cfm?URI=as-62-9-1028
Dalyander, P.S., and Cerco, D.F., 2010, Integration of an individual-based fish bioenergetics model into a spatially explicit water quality model (CE-QUAL-ICM). Vicksburg, Miss: U.S. Army Engineer Research and Development Center.
Dalyander, P.S., Fischenich, J.C., 2010, Cemcat: Conceptual Ecological Model Construction Assistance Toolbox: Vicksburg, Miss: U.S. Army Corps of Engineers, Engineer Research and Development Center.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.