| Bathymetry is an arc coverage of prominent bathymetric contours in the Gulf basin water area. |
| Thus, a primary need in all regions is bathymetric and topographic maps with close contour intervals. |
| In the Canadian Arctic, bathymetric information is of a reconnaissance nature supplemented by track soundings from ships. |
| Topographic and bathymetric changes in turn have had strong effects on the circulation of both the atmosphere and the oceans. |
| Modern bathymetric charts show that about 20 percent of the surfaces of the continents are submerged to form continental shelves. |
| The most conspicuous outboard structure is the accretionary wedge that lies just continentward of the ocean trench, the bathymetric manifestation of the subduction zone. |
