ETYM Hydro-, 1 + -graphy: cf. French hydrographie.
The science of the measurement and description and mapping of the surface waters of the earth with special reference to navigation.
Study of investigating bodies of water.
Description, surveying and mapping of water surface of earth, with its depths, tides, etc.
Study and charting of Earth's surface waters in seas, lakes, and rivers.
Opisivanje vode, deo geologije, naročito morfologije Zemljine kore, koji se bavi fizikom kopnene vode.