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U.S. Geological Survey Open-File Report 2012-1234

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

Title Page | Contents | List of Figures | List of Tables | Conversion Factors | Abbreviations | Executive Summary | Introduction | Methods | Results | Digital Data Files | Discussion | Summary and Conclusions | References Cited | Appendix 1. Scenarios | Appendix 2. Example Model Input Files | Appendix 3. Calculations of Mobility and Potential Flux | Appendix 4. File Naming Conventions | Appendix 5. Time Step of Maximum Ebb and Flood for Inlets in the Model Domain

Figure 23, comparison of sediment and SRB mobility.
Figure 23. Mobility ratio (table 2, metric 5) in the northern Gulf of Mexico alongshore Alabama and Florida for sand for scenarios A, H3_D6 and B, H4_D6 (fig. 2). Areas with a mobility ratio of 1 (in pink) indicate where the mobility threshold was exceeded. Compared with 2.5-centimeter surface residual balls (SRBs; fig. 22), sand is mobile over a large portion of the domain in both scenarios, yielding the potential for exhumation and burial of SRBs in regions where the SRBs themselves are immobile.
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