Rechercher un terme


Affichage des termes 1 à 25 sur un total de 183

Waterways transport

Updated on 06/09/2018
Définition
Sens commun
Mode of transporting goods or people through the national and international waterways networks.
Source
according to the National Chamber of Inland Navigation

Maritime transport/shipping

Updated on 06/09/2018
Définition
Sens commun
Mode of transporting goods or people by sea for the most part.
Source
according to Wikipedia

Inland waterway

Updated on 06/09/2018
Définition
Sens commun
A harnessed river or canal open to traffic and waterways transport.
Source
according to Wikipedia

Ballast water

Updated on 25/02/2019
Définition
Sens commun
Water contained in large tanks that can correct the trim of the boat and its balance. Ballast water is a problem during the emptying of the tank (deballasting) because species living in one part of the world are released into another zone, creating ecological disturbances. With the growth of international trade, and especially transoceanic maritime transport, problems arise because of this contribution of living organisms foreign to the local environment. Now, biological and chemical treatment systems must treat these volumes of water to limit the exchange of invasive species.
Source
according to ASTEE

Travel-cost method

Updated on 19/06/2018
Définition
Sens technique
Method for estimating the maximum entry right that visitors of a site would be willing to pay to continue visiting this site. It is based on the idea that travel expenses incurred by individuals to visit a site represent their willingness to pay to visit this site. The travel cost is a measure of the visit unit.
Source
According to the Ministry for the Environment and IOWater

Water utilization

Updated on 13/07/2018
Définition
Sens commun
All services and activities having a significant impact on water status. Services related to the use of water are water uses characterized by the existence of structures for abstraction, storage, treatment or discharge. They have a fixed asset.
Source
According to the Ministry of Ecology

Water use

Updated on 13/07/2018
Définition
Sens commun
Utilization of water by human beings (domestic, industrial, agricultural, recreational, cultural uses of drinking water).
Source
According to the Ministry for the Environment and AFB

Canal

Updated on 04/07/2018
Définition
Sens commun
Hydraulic structure fed by water withdrawals from watercourses or bodies of water and mainly intended for navigation, drainage, irrigation or flow regulation.
Source
According to AFB

Maritime port

Updated on 04/07/2018
Définition
Sens commun

Place where vessels can approach the coast and dock to unload their products and/or their passengers. There are natural harbours, but in most cases the port site has been built.

Source
According to Ifremer

Water abstraction

Updated on 25/02/2019
Définition
Sens commun

Extraction of fresh water from a groundwater source or surface, permanently or temporarily, and conveyed to the place of use. Water abstractions include all activities related levies generated by agriculture, industry (including energy), the supply of drinking water, or other (mineral spring authorized, production artificial snow).

Source
according to AFB, IOWater, SOeS and OCDE

Abstraction supply zones

Updated on 25/02/2019
Définition
Sens technique

Area on which the water that soaks into the ground supplies the abstraction for drinking water.

Source
According to the Ministry for the Environment and the Ministry for the Agriculture

Flood warning

Updated on 08/04/2020
Définition
Sens commun

Warning issued in advance by the departmental flood forecasting services. In the event of heavy rainfall or hydrological alert, a flood warning is sent to the Prefect, who then alerts the mayors of the catchment areas concerned.

Source
according to OFB
Sens technique

Warning issued in advance by a special state service (flood forecasting service). In the event of a rainfall or hydrological alert (triggering when thresholds are exceeded), the flood forecasting service offers the Prefect the alert of the mayors of the watersheds concerned. As a severe overflow flood, the flood warning service broadcasts, for prefects and mayors, hydrological situation bulletins and information on the evolution of water levels . In 1994, 54 flood warning services monitored 16,000 km of waterways in France using automated measurement networks.

Source
According to Ministry of the Environment and OFB

Hydrological balance

Updated on 06/09/2018
Définition
Sens technique
Accounting of the changes in water resources (stream flows, groundwater level, effective rainfall) of an area (for example a catchment area) based on meteorological, piezometric or hydrological information.
Source
according to AFB

Hydropower plant

Updated on 04/12/2018
Définition
Sens commun
Facility that produces electricity by the force of moving water.
Source
according to AFB
Sens technique
Hydroelectric facility transforming hydraulic energy into electricity, whose power usually varies from a few kW to 4,500 kW.
Source
according to IFREMER

Dam release

Updated on 06/09/2018
Définition
Sens technique
Operation to lower water level and increase outflow rates to discharge some of the sediment retained by a dam. A dam release consists in opening the gates, thus limiting the silting of the dam reservoir and the risk of flooding. This operation, although common in the management of harnessed rivers, can have adverse effects on the downstream environment (decrease of oxygen levels in water, obstruction of fish gills by suspended solids, etc.).
Source
according to ISTREA

Stagnant water

Updated on 06/09/2018
Définition
Sens commun
Still water in parts of a river, lake or other aquatic environment.
Source
according to UNESCO

Green water

Updated on 06/09/2018
Définition
Sens commun
Water contained in the soil and available for plants.
Source
according to AFB

Groundwater/river exchange

Updated on 06/09/2018
Définition
Sens commun
Exchange of water in one direction or the other between an aquifer and a river. Depending on the level of the water line, and on the season, groundwater feeds the river or is fed by it, particularly during floods. In the case of karst, these relationships are important and localised.
Source
according to AFB

Silting

Updated on 06/09/2018
Définition
Sens technique
Deposit of fine sediments made of rock particles and silt or clay. Siltation is a form of sedimentation with mud. Streams carry a few million cubic meters of sediment each year. Their deposit causes the silting of these rivers, canals, and bodies of water. This quite natural phenomenon is accentuated by a flat topography, low flows, erosion processes, as well as industrial and urban discharges.
Source
according to AFB and INRA

Snow melt

Updated on 06/09/2018
Définition
Sens commun
Transformation of snow into liquid water.
Source
according to UNESCO

Hydraulics

Updated on 06/09/2018
Définition
Sens commun
A branch of fluid mechanics that deals with the flow of water (or other liquids) through pipes, open channels and other structures.
Source
according to UNESCO

River hydraulics

Updated on 06/09/2018
Définition
Sens technique
Branch of Hydraulics which mainly deals with the free surface flow of water in natural or artificial streams (e.g. canals). River hydraulics is necessary for the design, development and construction of hydraulic structures, such as dikes, sills and weirs.
Source
according to Wikipedia

Marine hydraulics

Updated on 06/09/2018
Définition
Sens technique
A branch of hydraulics related to the marine and coastal environments, which deals with swells, currents, dispersion and water quality, sedimentology, seaworthiness and the keeping of ships at station, or the interaction between waves and structures.
Source
according to Egis

Groundwater Hydraulics

Updated on 06/09/2018
Définition
Sens technique
A branch of hydraulics that mathematically studies the natural gravity flow (of an aquifer) or the induced flow (by drainage or pumping, for example) of free groundwater in permeable media, under the effect of a hydraulic or pressure gradient.
Source
according to Wikipedia

Torrential hydraulics

Updated on 06/09/2018
Définition
Sens technique
Branch of hydraulics relating to flows in areas with steep slopes.
Source
according to Water torrents & mountain rivers