Hydrography

thumb|right|upright=1.3|Table of geography, hydrography, and navigation, from a 1728 Cyclopaedia, or an Universal Dictionary of Arts and Sciences|Cyclopaedia Hydrography is the branch of applied sciences which deals with the measurement and description of the physical features of oceans, seas, coastal areas, lakes and rivers, as well as with the prediction of their change over time, for the primary purpose of safety of navigation and in support of all other marine activities, including economic development, security and defense, scientific research, and environmental protection.

thumb|upright=1.3|Lake Hāwea, New Zealand

UN maritime zone

coastal waters that are part of a nation-state's sovereign territory

waters on the landward side of the baseline of a nation's territorial waters, except in archipelagic states

ship or boat designed, modified, or equipped to carry out research at sea

the line from which the seaward limits of a state's territorial sea and certain other maritime zones of jurisdiction are measured; normally, a sea baseline follows the low-water line of a coastal state

map visually representing the submerged terrain

periodical literature for seamen

method of measuring the depth of a body of water

oceanography instrument used to measure the conductivity, temperature, and pressure of seawater

thumb|Poster displayed at the Baiheliang Underwater Museum showing the configuration of the White Crane Ridge before the construction of the [[Three Gorges Dam]] thumb|A Qing dynasty carved fish, previously placed on the White Crane Ridge, now displayed in the museum.

analysis of the topography of bodies of water, providing data for environmental, tidal calculations, maritime navigation, etc.

details of routes for coastal navigation

offers a publicly available bathymetric chart of the world's oceans

supply and research ship operated by the National Antarctic Scientific Center of Ukraine

device used to assess water quality

type of aquaculture

brand of nautical chart

type of sonar that is used to map the seabed

hydrological divide in eastern North America

publication describing lighthouses and other aids to maritime navigation

Spanish organization responsible for the management, regulation and maintenance of the waters and irrigation of the Ebro river basin