Glossaire de A à Z
A set of elementary data coming from one or more collecting devices organized by computer processing. It can extract data and make them available to users. The elementary data collecting devices may be located in several data banks. In some cases the data bank may contain processed data.
Record that indexes data through their metadata. The National Service for Water Data and Reference-dataset Management (Sandre) provides metadata of geo-referenced datasets via an online service, known as the data catalogue hosted on GeoNetwork (http: / / www.sandre.eaufrance.fr / geonetwork).
Process related to the transmission of data generated by different stakeholders and means to a storage device. Most often data collecting is made by the producer himself, who makes the data selection, formatting and transmission. Sometimes an intermediary collects data from one or more producers
Collection of words or phrases in one language presented in an agreed order and intended to provide information. Data dictionaries established by the National Service for Water Data and Reference-dataset Management (Sandre) are specification documents that describe and clarify the terminology and data for a particular field. They include entities (or objects) connected logically with others (the "Station" object is for example connected to the "sample point" object). They are used to design databases in particular. Several aspects of the data are processed: their meaning, essential rules for their drafting or codification, the list of values they can have, the person or persons or organizations who have the right to create, consult, modify or delete them, etc. A data dictionary is based on one or more sets of reference data and materialized by files in XSD and PDF formats.
A structured set of files gathering information having common features and accessible by software. The National Service for Water Data and Reference-dataset Management (Sandre) only manages databases made up of specification documents and reference datasets
A set of geographic layers presenting hydrographic objects for the French territory. This includes cutting the territory into "hydrographic areas" (river basins) as well as watercourses and bodies of water, and the codification of these objects. The Carthage database (Database on thematic mapping of the Water Agencies) was developed by IGN, the Water Agencies and the Ministry for the Environment and is based on the hydrographic layer of the CARTO database. The National Service for Water Data and Reference-dataset Management (Sandre) disseminates this geo-referenced dataset through its data catalogue and cartographic Atlas.
Homogeneous set of data in a structured file. A dataset in "Sandre format" is a file of data on professions/jobs according to an interchange scenario prepared by the National Service for Water Data and Reference-dataset Management (Sandre). It is materialized through a file in an XML or text format.
Regulatory act signed either by the President of the Republic or by the Prime Minister. The decrees called "State Council decrees" can only be taken after collaboration with the Council of State. The decree is a statutory text issued by the executive power and intended to clarify the special terms and conditions for the application of a law passed by the parliament. It is most often complemented by implementation decrees.
Explanation of the meanings of a word or phrase of a lexicon. Data dictionaries established by the National Service for Water Data and Reference-dataset Management (Sandre) include a set of definitions.
Planning document produced on the Department scale, usually under the guidance of the Departemental Council, taking stock of the situation of drinking water supply and proposing baseline scenarios for the purpose (among others) of securing quality and quantity.
Departmental guidance document for public action in the management and conservation of aquatic environments and fish fauna. The Departmental fish conservation plan (SDVP) is approved by prefectural order after advice from the Departemental Council. It makes an assessment of river status and defines objectives and priority actions.
Document that defines the general terms for establishing quarries in the Departments. Established by the Law of 4 January 1993, it is drafted by the Departmental Quarry Commission and approved by prefectural order. The Departmental quarry plan (SDC) takes into account "the national economic interest, the resources and requirements of the Department and neighbouring Departments regarding equipment, the protection of…
Amount of water measured on a level surface and expressed as height.
A flow rate value expressed in mm. The depth of runoff is obtained by dividing a runoff volume at a measuring station by the surface of the drainage basin at the station; it is most commonly expressed in mm, which allows comparing it to the rainfalls which cause it.
Species having part of their biological cycle in freshwater and the other part in saltwater.
Structure in concrete, earth or rock, or a mere (compacted or not) earthen dike or levee for: channelling a stream and possibly protect its surroundings (floodplain) against flooding, and/or protect a defined objective, more or less specific (urban, industrial, agricultural) and sometimes surround it, and/or serve as a barrier for a water abstraction in the stream.
Direct management (operation) of a public utility/service by the municipality or the public inter-municipal cooperation institution which is in charge of this utility/service.
Reference document, guidance and decision support for each Natura 2000 site based on a consensus-building process, the document of objectives (DOCOB) sets the appropriate management measures to be implemented to preserve or restore the species and habitats that have justified the site designation under Natura 2000.
Device used for withdrawing water (spring, groundwater, river) for a given use.
All facilities, services and activities which allow, by using untreated water, producing water which meets the drinking water standards in force, then distributed to consumers. We consider five distinct steps in this supply, abstraction, intakes, drinking water treatment, conveyance (transport and storage), and distribution to the consumer.
State of the soil or of an environment resulting from a lack of rain. It generally occurs when the amount of rain is significantly lower than seasonal norms, and this over a fairly long period.
Gradual reduction of the water flow, until available resources are exhausted.
Temporary drying out of a watercourse or of a river section.
As part of the monitoring carried out by the National Observatory of Low Water, a watercourse is considered in a dry period when the water is totally evaporated or infiltrated on more than 50% of the reporting station.