John Goff uses swath sonar mapping and seafloor characterization to investigate the large- and fine-scale morphology of the seafloor and its pattern of acoustic reflectivity. He also investigates the stratigraphy of the shallow seabed using ultra-high resolution seismic reflection systems (chirp) and core samples. He has participated in several Office of Naval Research projects which have included major, multidisciplinary field programs in shallow water settings, including the continental shelves off northern California and New Jersey, and the near shore environment off Martha's Vineyard. His current research includes investigation of seafloor morphology and shallow stratigraphy on the inner West Florida shelf, the impact of Hurricane Ike on coastal sediment transport near Galveston, TX, and the morainal bank processes associated with Hubbard Glacier, Alaska. John also uses the statistical analysis of geophysical fields associated with seafloor bathymetry, sedimentary horizons, sea ice draft, and crustal heterogeneity to relate their complex morphology to the geological processes which form or interact with them. He recently publish a global prediction of abyssal hill roughness based on the small-scale variability of satellite altimetry-based gravity.