Action de démanteler et détruire un obstacle à la continuité écologique (biologique et sédimentaire) d’un cours d’eau. Par exemple un seuil ou un barrage, édifié sur les cours d’eau.
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.
A physical process for separating suspended solids from a liquid, using the action of gravity to gather them in whole or in part and to collect them at the bottom of a settling tank. In the case of water with a high suspended matter content, decantation is frequently used upstream of filtration.
La liste des substances prioritaires, incluant les substances dangereuses prioritaires, de la directive 2000/60/CE est adoptée par la présente décision. Cette liste, telle qu'elle figure à l'annexe de la présente décision, est ajoutée à la directive 2000/60/CE en tant qu'annexe X.
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.
Water containing no ions (uncharged particles and colloids are not removed).
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.
A pre-coat filter used mainly in swimming pool water treatment, whose pre-coat is made up of siliceous carapaces of fossilised diatoms, very small marine organisms (5 to 100 µm).
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.
Directive qui concerne la qualité des eaux destinées à la consommation humaine pour tous dans l’Union Européenne. Les objectifs de la présente directive sont de protéger la santé humaine des effets néfastes de la contamination des eaux destinées à la consommation humaine en garantissant la salubrité et la propreté de celles-ci, ainsi que d’améliorer l’accès aux eaux destinées à la consommation humaine. Les 5 principaux axes d’évolution en matière d’eau potable : de nouvelles normes…
Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy, commonly known as the Water Framework Directive (WFD). It sets out environmental objectives and deadlines to improve the ecological and chemical status of surface water bodies as well as the quantitative status and chemical status of groundwater bodies. Some water bodies created by human activity or having their characteristics fundamentally modified by human activity, may be designated respectively as artificial water bodies (AWB) or heavily modified water bodies (HMWB). In this case, their characteristics and ecological functioning are described by an ecological potential. The WFD especially sets the general goal to achieve "
Daughter Directive 2006/118/EC of 12 December 2006 on the protection of groundwater from both a quantitative and qualitative point of view. It aims to establish criteria for assessing the good chemical status of groundwater. The definition of this
Directive n° 2007/60/CE du Parlement Européen et du Conseil du 23/10/07 relative à l’évaluation et à la gestion des risques d’inondation : La présente directive a pour objet d’établir un cadre pour l’évaluation et la gestion des risques d’inondation, qui vise à réduire les conséquences négatives pour la santé humaine, l’environnement, le patrimoine culturel et l’activité économique associées aux inondations dans la Communauté.
Directive (UE) 2020/2184 du Parlement européen et du Conseil du 16 décembre 2020 relative à la qualité des eaux destinées à la consommation humaine (refonte), est publiée au Journal Officiel de l'Union Européenne le 23 décembre 2020.
La Commission européenne a lancé une consultation publique à l’échelle de l’Union et a mené une évaluation de la
Directive établissant un cadre pour la planification de l’espace maritime dans le but de promouvoir la croissance durable des économies maritimes, le développement durable des espaces maritimes et l’utilisation durable des ressources marines.(JOUE n° L 257 du 28 août 2014).
Au sein de la politique maritime intégrée de l’Union, ce cadre prévoit l’établissement et la mise en œuvre par les Etats membres de la planification de l’espace maritime dans le but de contribuer aux objectifs décrits à l’article 5, en tenant compte des interactions terre-mer et d’une coopération transfrontière améliorée, conformément aux dispositions pertinentes de la CNUDM (Convention des Nations unies sur le droit de la mer).
Elle vise à la conservation de tous les oiseaux sauvages dans l’Union européenne (UE) en fixant des règles pour leur protection, leur conservation, leur gestion et leur régulation. Elle s’applique aux oiseaux ainsi qu’à leurs œufs, à leurs nids et à leurs habitats. Les pays de l’UE classent en zones de protection spéciale (ZPS) les territoires les plus appropriés en nombre et en superficie à la conservation de ces espèces dans les zones maritimes et terrestres d’application de la présente directive. Une attention particulière doit être portée aux zones humides. Les ZPS font partie du réseau de sites protégés Natura 2000, au même titre que les…
Water distillation imitates the natural process of evaporation. The water to be distilled is evaporated, thus removing all dissolved particles and various pollutants.
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.