1. ERDC Knowledge Core
  2. Engineer Research and Development Center (ERDC)
  3. Engineer Research and Development Center (ERDC)
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  5. Technical Report
Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/46402
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dc.contributor.authorHerman, Brook D.-
dc.contributor.authorWhitfield, Paula E.-
dc.contributor.authorDavis, Jenny L.-
dc.contributor.authorTritinger, Amanda S.-
dc.contributor.authorGolden, Becky Raves.-
dc.contributor.authorDillon, S. Catie.-
dc.contributor.authorSzimanski, Danielle M.-
dc.contributor.authorSwannack, Todd M.-
dc.contributor.authorGailani, Joseph Z.-
dc.contributor.authorKing, Jeffrey K.-
dc.creatorEnvironmental Laboratory (U.S.)-
dc.creatorCoastal and Hydraulics Laboratory (U.S.)-
dc.date.accessioned2023-01-24T19:57:37Z-
dc.date.available2023-01-24T19:57:37Z-
dc.date.issued2023-01-
dc.identifier.govdocERDC TR-23-1-
dc.identifier.urihttps://hdl.handle.net/11681/46402-
dc.identifier.urihttp://dx.doi.org/10.21079/11681/46402-
dc.descriptionTechnical Reporten_US
dc.description.abstractThis report documents the development of an integrated hydrodynamic and ecological model to test assumptions about island resilience. Swan Island, a 25-acre island in Chesapeake Bay, Maryland, was used as a case study. An interagency, interdisciplinary team of scientists and engineers came together in a series of workshops to develop a simplified resilience model to examine the ability of islands to reduce waves and erosion and the impacts to nearby habitats and shorelines. This report describes the model development process and the results from this first key step: model conceptualization. The final conceptual model identifies four main components: vegetative biomass, island elevation, waves/currents, and sediment supply. These components interact to form and support specific habitat types occurring on the island: coastal dunes, high marsh, low marsh, and submerged aquatic vegetation. The pre-and post-construction field data, coupled with hydrodynamic ecological models, will provide predictive capabilities of island resilience and evaluations of accrued benefits for future island creation and restoration projects. The process and methods described can be applied to island projects in a variety of regions and geographic scales.en_US
dc.description.sponsorshipDredging Operations and Environmental Research Program (U.S.)en_US
dc.description.sponsorshipEngineering With Nature Program (U.S.)-
dc.description.tableofcontentsAbstract .................................................................................................................................... ii Figures and Tables .................................................................................................................. iv Preface ...................................................................................................................................... v 1 Introduction ...................................................................................................................... 1 1.1 Background ........................................................................................................ 1 1.2 Objective ............................................................................................................ 1 1.3 Approach ............................................................................................................ 2 2 Model Purpose ................................................................................................................. 3 3 Model Development Approach ....................................................................................... 4 4 Conceptual Model Development .................................................................................... 5 5 Description and Importance of Model Components and Relationships ................... 8 5.1 Overall effect of wind, waves, and water levels (hydrodynamics) ................... 8 5.1.1 Advanced CIRCulation (ADCIRC) (Storm Surge) ........................................................ 9 5.1.2 STeady-state WAVE (STWAVE) (Radiation Stress) ................................................... 10 5.2 Importance of model components to Swan Island habitat types ................. 10 5.2.1 Coastal dunes ............................................................................................................ 11 5.2.2 High marsh ................................................................................................................ 13 5.2.3 Low marsh ................................................................................................................. 17 5.2.4 Submerged aquatic vegetation (SAV) ...................................................................... 20 6 Model Development Considerations ........................................................................... 26 7 Future Model Development Steps ............................................................................... 27 7.1 Quantification .................................................................................................. 27 7.2 Evaluation ........................................................................................................ 27 7.3 Application ....................................................................................................... 27 8 Summary ......................................................................................................................... 28 References ............................................................................................................................. 29 Report Documentation Page-
dc.format.extent42 pages / 2.82 MB-
dc.format.mediumPDF-
dc.language.isoen_USen_US
dc.publisherEngineer Research and Development Center (U.S.)en_US
dc.relation.ispartofseriesTechnical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC TR-23-1-
dc.rightsApproved for Public Release; Distribution is Unlimited-
dc.sourceThis Digital Resource was created in Microsoft Word and Adobe Acrobat-
dc.subjectIslandsen_US
dc.subjectDredgingen_US
dc.subjectDredging spoilen_US
dc.subjectMarsh plantsen_US
dc.subjectRestoration ecologyen_US
dc.subjectChesapeake Bay Region (Md. and Va.)en_US
dc.subjectHydrodynamics--Mathematical modelsen_US
dc.subjectEcology--Mathematical modelsen_US
dc.titleSwan Island resilience model development; Phase I : conceptual modelen_US
dc.typeReporten_US
Appears in Collections:Technical Report

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