Elizabeth Frances Weidner¹, Christian Stranne², Thomas C Weber³, Jonas Hentati-Sundberg⁴, Martin Jakobsson² and Larry Mayer⁵, (1)Center for Coastal and Ocean Mapping Joint Hydrographic Center, Durham, NH, United States, (2)Stockholm University, Department of Geological Sciences, Stockholm, Sweden, (3)University of New Hampshire Main Campus, Mechanical Engineering, Durham, NH, United States, (4)Swedish University of Agricultural Sciences, Aquatic Resources, Sweden, (5)University of New Hampshire Main Campus, Durham, NH, United States