TOPOGRAPHY & BATHYMETRY This grid theme shows the topography and bathymetry of the Circum-Pacific region. Blue areas represent elevations below mean sea level, and brown areas represent elevations above mean sea level. The lightest blue and brown areas represent elevations at or around mean sea level. The dataset is composed of 2-minute resolution data for the areas from latitude 72 degrees South (-72 degrees) to 70 degrees North, and 5-minute resolution data north and south of those parallels. The data are from the National Geophysical Data Center (1988; 1997).