Hydrographic nodes — Métropole 2017 — BD Carthage

A hydrographic node corresponds to a modification of l' water flow. It is always located at the end of an elementary hydrographic section. The class of hydrographic nodes managed by l'IGN includes: — confluences, diffluences, sources, mouths and losses of water; — restraint dams; — the dams along the water; — locks (for passage or scrapping); — sources and waterfalls of ' tourist interest. A hydrographic node is located by a geometric top. Some nodes correspond to an outlet of a hydrographic area. __Origin__ Updated by l'IGN following requests from Agences de l'Water according to an annual cycle. The consolidated version is then sent to the Sandre __Partner organisations__ Ash, Agence de l'eau Adour-Garonne, Agence de l'eau Artois-Picardie, Agence de l'eau Loire-Bretagne, Agence de l'eau Rhine-Meuse, Agence de l'Rhone-Méditerrannée water and Corsica, Agence de l'eau Seine-Normandie __Links annexes__ * [see scenario d' geographical exchange of the hydrographic reference](http://www.sandre.eaufrance.fr/urn.php?urn=urn:sandre:scenario-d-echanges-geographique:eth:FRA:::ressource:1:) * [see the interactive dictionary on Sandre website](http://id.eaufrance.fr/ddd/ETH/2002-1#NoeudHydrographique) * [see Dictionary & Hydrographic Reference (ETH)"](http://www.sandre.eaufrance.fr/?urn=urn:sandre:notice:dictionnaire::theme:ETH:ressource:2002-1:::html) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/f4bf92d51b85ce24a305090dfb69edc71a701ec6)