IEDA: Marine Geoscience Data System

GMRT MapTool

Make your own custom maps and grids from our Global Multi-Resolution Topography (GMRT) synthesis (Ryan et al., 2009), which combines seafloor bathymetry data to ~100 m resolution, global topography data to ~30 m resolution, and topography data to ~10 m resolution for some areas of the US. Select a geographic region or focus/study site below to create a map. Additional contributed bathymetry data that are not part of the GMRT, including regional compilations and ultra-high resolution grids and images, can be accessed using our search interface. Current GMRT version: 2.5 (released Oct. 2013). Learn More...

Select Site (sets coordinates)
Specify Coordinates