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U.S. Geological Survey Open-File Report 2012–1103

Sea-Floor Character and Geology Off the Entrance to the Connecticut River, Northeastern Long Island Sound

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Title | List of Figures | Conversion Factors | Abstract | Introduction | Setting | Methods | Bathymetry | Sidescan Sonar | Sediment Distribution | Bottom Photography | GIS Data Catalog | Summary | Acknowledgments | References | Contacts

Figure 29. Sand-wave profiles in the study area.

Figure 29. Cross-sectional views of sand waves produced from bathymetric data collected during National Oceanic and Atmospheric Administration survey H12013. Profile C shows that up-flank transport at the eastern end of Long Sand Shoal helps maintain the shoal; profile D shows that bedforms in the field of megaripples north of Long Sand Shoal are commonly symmetrical; and profile E shows that bedform asymmetry on the northern edge of the broad shoal west of Hatchett Reef indicates net southwestward transport. Locations of profiles are shown in figure 21.

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