UNCLOS is an international agreement that defines the rights and responsibilities of nations with respect to their use of the world's oceans, establishing guidelines for businesses, the environment, and the management of marine natural resources.

The extent to which a product (such as a device, service, or environment) can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.

Data which is not collected directly by your organisation but which is obtained from existing sources.

A belt of water of a defined breadth but not exceeding 12 nautical miles measured seaward from the territorial sea baseline.

Bathymetry data derived from satellites, mainly through the use of high resolution imagery and altimeters.

A chart specifically designed to meet the requirements of marine navigation, showing [depth/depths]] of water, nature of bottom, elevations, configuration and characteristics of coast, dangers and aids to navigation. May be a paper chart, electronic navigational chart (ENC) or a raster navigational chart (RNC). Also called marine chart, hydrographi [..]

NOAA is a scientific agency within the United States Department of Commerce focused on the conditions of the oceans and the atmosphere. In relation to bathymetry and global relief NOAA provides scientific stewardship, products, and services for ocean depth data and derived digital elevation models.

The average height of all low waters at a place over a 19-year period.

See Intertidal Zone

The lowest tide level which can be predicted to occur under average meteorological conditions and under any combination of astronomical conditions.