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1. the study, surveying, and mapping of the oceans, seas, and rivers
2. the oceans, seas, and rivers as represented on a chart



the division of hydrology dedicated to describing bodies of water and their separate parts.

(1) The division of inland hydrology consists of the study and description of individual bodies of water, including rivers, lakes, and reservoirs (and their combination in a specific area), their location and geographical features, size, and course. The study of individual bodies of water provides information on their regular characteristics in such aspects as inland water distribution and the flow system. Hydrography is based on the systems and laws developed by general hydrology and physical geography. Another area of hydrography is the study of man-made changes that affect the course of bodies of water. The greatest amount of information on Soviet inland hydrography is found in the handbooks entitled Inland Water Resources of the USSR.

(2) The division of oceanography is devoted to the description of the subdivisions of the oceans. Oceanic hydrography is closely related to many scientific disciplines that study the ocean’s hydrometric course, geodesic fields of the oceans, the bottom and shores of oceans and seas, and the contour of the ocean floor.

The Hydrographie Service was organized in Russia in 1718 under the Collegium of the Admiralty, after the Admiralty had been given jurisdiction over this area of marine affairs. In 1827 the Administration of the Hydrographer General was established; it was changed in 1885 to the Central Hydro-graphic Administration.

The development of hydrography began in other countries during the first half of the 18th century: in France in 1720, in Great Britain and Holland in 1737, and in the USA in 1830.

There are many distinguished names connected with the development of scientific hydrography in Russia and the USSR, including A. A. Tillo, A. I. Vil’kitskii, Iu. M. Shokal’skii, V. M. Rodevich, E. V. Blizniak, and I. F. Mo-lodykh.


Blizniak, E. V., K. M. Ovchinnikov, and V. D. Bykov. Gidrografiia rek SSSR. Moscow, 1945.
Maksimov, G. S. “Gidrografiia kak nauka.” In Uchenye zapiski vysshego Arkticheskogo morskogo uchilishcha, vol. 1. Leningrad-Moscow, 1949.
Maksimov, G. S. Gidrografie he skaia opis’. Moscow-Leningrad, 1949.
Sheikin, P. A. Gidrograficheskie raboty na rekakh. Leningrad, 1949.
Nastavienie po rekognostsirovochnym g idro grafie he s kim iss ledo-vaniiam rek. Leningrad, 1949.
Davydov, L. K. Gidrografiia SSSR, vols. 1-2. Leningrad, 1953-55.
Glushkov, V. G. Voprosy teorii i metody gidrologicheskikh issle-dovanii. Moscow, 1961.
Belobrov, A. P. Gidrografiia moria. Moscow, 1964.
Sokolov, A. A. Gidrografiia SSSR. Leningrad, 1964.



Science which deals with the measurement and description of the physical features of the oceans, lakes, rivers, and their adjoining coastal areas, with particular reference to their control and utilization.
Measurement of the tides and currents as an aid to navigation.
References in periodicals archive ?
A team of Pakistan Navy Hydrographers, jointly with Ministry of Science and Technology and National Institute of Oceanography (NIO), had started collecting data on shelf extension in 1985.
The Kingdom has already taken steps to train hydrographers by setting up a general commission to build data while also carrying out careful recruitment with aptitude for the arduous and precision tasks needed in hydrography.
The tsunami wiped out tons of shoreline," said Forrest Noll, a hydrographer with the Naval Oceanographic Office.
Because of his tendency to revise and improve modern methods, his suggestions gave him the post of Hydrographer of the Royal Navy.
He even invokes other modes of representation: 'Suppose the great hydrographer of the Admiralty himself can't describe it' (p.
The Directorate for Geographic Information (responsible for co-ordinating the joint effort of Landward Mapping, the Hydrographer and JARIC) and the Infocentre (a facility for the collection and indexing of intelligence information for exploitation by the processing function) also form part of this subdivision.
Decaen, it must be said, was guilty of a similar breach of Baudin's expedition's passport when he substituted the hydrographer Pierre Faure with his brother-in-law Barois and sent him back to France with secret dispatches.
Paris had shown great skill as a seaman, hydrographer, and artist aboard L'Astrolabe, under the command of Dumont d'Urville in 1826-1829, which led to his appointment to Captain Laplace.
So we are treated, for instance, to "technical details of the digital camera" the director uses; the "quasi-exhaustive inventory of the collection" of a man who cleans a highway service station, "the unabridged transcript of an interview with a road hydrographer on [his] technical point of view of the highway," "a partial inventory of objects sold at the Fina station in North Dijon," and a list of the daily "routes, hours, sequence of events, kilometers, receipts, things drunk, eaten, and bought in six days on the highway by a director and an author.
I am a hydrographer at the Department of Water and Power and I took a basic course in water treatment at College of the Canyons.
Rennell acknowledges the aid of maps made by Alexander Dalrymple, the East India Company's hydrographer, (36) and one Monsieur d'Apres, whose new Neptune Orientale contributed to Rennell's knowledge of the Indian coasts and islands.