Reference dataset

A set of homogeneous reference data which are codified and listed. The reference datasets established by the National Service for Water Data and Reference-dataset Management (Sandre) are regularly evolving alphanumeric or geographic data. Alphanumeric data are lists of codes (e.g. codes of parameters such as chlorine demand (1397), methods, stakeholders, classifications, measuring stations, etc). Geographic data are geo-located objects (e.g. water bodies, measuring stations, hydrographic areas, regulatory zoning, etc). Each object is associated with a list of additional information (code/identifier, name, location, etc).