Watercourses — Guadeloupe 2022 — BD Topage®

Guadeloupe BD Topage® watercourse dataset version 2022 There is no standardised definition of what a watercourse is. The codification of watercourses is the responsibility of the managers of the framework (Water agencies, in consultation with IGN-OFB-State). Coding choices are essentially influenced by a topographical approach, based on field toponymy where it exists. The criteria of drain length, flow rates, flow permanence can be used, in the absence of clear and convergent sources on the toponymy. One of the founding roles of the repository for the water information system is to propose an identification of hydrographic objects in the form of stable, consensual codes, usable to produce and maintain derived repositories, or to hang business data on them (purification facilities, etc.) The choice of watercourse is generally not influenced by one of these particular uses, sometimes contradictory between them. Note: The management of transboundary watercourses is as follows: — Case of watercourses located on the border (bordering): the geometry of it will be integrated in its entirety; — Case of rivers crossing the border once: a common cross-border Hydrographic Node will be shared between the two countries (pending clear boundaries); — Case of watercourses going back and forth between the two countries: the geometry of this one will be fully integrated for the part between its first and last A/R on the border (even for the part located in the neighbouring country). Corresponds to Inspire’s “Watercourse” concept.