Glossaire de A à Z
Each hierarchical level used in biological classifications to regroup species with common features: class, order, family, genus, species, etc.
Set of technical specifications that describe the interface (questions and answers) of a web service. A scenario prepared by the National Service for Water Data and Reference-dataset Management (Sandre) is a specification document that describes the procedures for the exchange of data of a web service based on a format. It is especially used for showing the data stored in databases via Internet. A technical scenario is based on one or more interchange scenarios and is materialized by files in WSDL and PDF formats.
Sovereign base area of a coastal tate of 12 miles width (at most) from its baselines.
Homogeneous set of data based on specifications. A test dataset provided by the National Service for Water Data and Reference-dataset Management (Sandre) is a set of data on professions/jobs produced by the Sandre as an example.
Change in water level as a function of periods of high or low-flow in a body of water, or of the level of high tide and low sea water level. It is measured in metres between two dates.
Refers to the extreme limit reached by the sea in a given day. The lowest tide mark is the limit of continuously submerged lands. It is distant more than 100 metres from the high-flow mark (otherwise it is not entered) and outside estuaries (where an arbitrary line closing the estuary is entered instead of the lowest
Total volume of water that has been abstracted and may not be used for a variety of reasons: evaporation, transpiration and integration into products consumed by humans or livestock, direct discharge into the sea or other withdrawals from freshwater resources. Water losses, due to leak during transport between the
Time required by a molecule or a volume of water, to go through a system (a watershed, an aquifer, a hydrographic network, a soil...).
Surface waters located in the vicinity of river mouths, which are partly saline because of their proximity to littoral waters but which are substantially influenced by freshwater inflows.
Aerobic biological wastewater treatment reactor in which the bacterial purifying biomass is placed on an inert support, forming a biofilm (fixed bed). Wastewater is uniformly distributed on the surface and flow downwards with the gravity, through the pores of the filter. Thus, bacteria can degrade the carbon pollution and a part of the nitrogen one. The natural air ventilation carries to the bacteria, all the oxygen they need to eliminate the pollution.