Hydrographic Network

Hydrographic Network

 

the sum total of water bodies and streams on land (rivers, lakes, swamps, and water reservoirs). If only streams are considered, the term “river network” is employed, but often the terms “hydrographic network” and “river network” are used interchangeably. The hydrographic network is characterized by the ratio density of river, lake, and swamp networks, that is, the relation of the area of the water table of a lake or of the surface of a swamp to the area of a given territory as expressed in percentages. The structure of the hydrographie network—its density and lake and swamp networks—is determined by a complex of physicogeographic conditions, especially by climate (the total annual precipitation and rate of evaporation), by the topography, and by the geological structure of the locality. In the process of erosion new areas are added to the drainage system that previously had no runoff to the river system, and areas without drainage such as sinkholes are eliminated. A decrease in runoff leads to the separation of various parts of the hydrographie network.

References in periodicals archive ?
Because the HR NHD does not include measured UDA values, they must be estimated for each feature in the hydrographic network (Stanislawski 2009).
The analysis vises the influence of the climatic elements on the rural settlements, the relation of the habitat with the hydrographic network and the biopedogeographical concerning their attracting in the humanizing process.
The Amazon rainforest region hosts the world's largest hydrographic network on the planet spreading along over 7 million square kilometers from the Andean Mountains in Peru to the Atlantic Ocean in northern Brazil.
Contract notice: Service to ensure the integrity of mdt lidar with the hydrographic network in the mediterranean basin andalusian, atlantic andalusia, the balearic islands the inland basins of catalonia, the basin of the costa de galicia, the miEo-sil basin, etc.
As part of a coordinating orders, Semarelp and its subsidiaries, Scrim Ile de France and Levaparc wish for their activities and their respective needs, enlist the skills of a / surveyor expert ( s) for conducting topographical and benefits, fragmented, technical surveys, building surveys, easements, markers, of cadastral, descriptions of volume division, hydrographic network and gluing demolition.
Will include, among others, the identification of the hydrographic network of natural and artificial, and areas at risk of dehydration, resulting him a danger to the health and organic soils, valuable natural habitats and plant communities that occur there.
The contract is for a service based on the implementation of the District Tomaszowskim IT project involving the creation of Geoportal county through which the District of Tomaszow will mean the highest quality service, with the use of modern methods of information and communication and organizational constructed based on the reference in the project database records EGiB land and buildings), topographic database (BDOT 500) and geodetic records of public utilities (GESUT) and supporting databases Spatial Information System (transport network and the hydrographic network of protected areas.
Contract notice: Service to ensure the integrity of the mdt with lidar hydrographic network in the basins of the guadiana, guadalquivir, jE[bar]car, tajo and segura.
The main action concerns the creation of a water intake structure on the southern part of the island, so that the hydrographic network on the island (the Bauerngrundwasser) can be supplied directly from the Rhine with between 5 and 80 m3 per second, depending on the river%s natural hydrological conditions.
The benefits under this contract, concern animating three Natura 2000 sites FR 7200691 Valley Euille FR 7200695 Hydrographic Network Lisos FR 7200801 Hydrographic Network Brion FR 7200804 Network Hydrographic the Pinpinne The place of performance of the services is the Gironde (33)the requirement is for a period of one (1) year from the notification .
AaAaAa The programme is devised to ensure the stability of the hydrographic networks of the Ikkes river and its tributaries, and minimize silting.

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