Surface hydrographic entities — Guadeloupe 2009 — BD Carthage

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Dataset information

Country of origin
Updated
2020.01.24 12:57
Created
2017.07.28
Available languages
French
Keywords
bd-carthage, donnees-ouvertes, passerelle-inspire, guadeloupe, eau-de-surface, hydrographie, france, politique-de-lenvironnement, inland-waters
Quality scoring
195

Dataset description

The main concept of hydrographic cutting is the hydrographic entity defined by circular n°91-50. The hydrographic entity is a natural or managed stream, a natural or managed arm, an artificial waterway (channel,...), a body of water or a coastal line. The nature of a hydrographic entity is not constant throughout the entity. For example, a natural stream can be set up on a part. All of these changes can be indicated by distinguishing sub-milies on the entity. Hydrographic entities are broken down into two types: — linear hydrographic entities or streams, — surface hydrographic entities corresponding to bodies of water and linear entities whose wide areas (above 50 metres) are represented by surface elements. A surface hydrographic entity may be traversed by a watercourse, which will be called the main watercourse. Each entity shall be identified by a unique generic code at national level. This alphanumeric code on 8 positions consists of dashes and characters. For example, a water course that crosses multiple zones or subsectors will have a generic code in the format of the following generic codes "V12-4000" or "R5--0420" (see below for the construction rule). In addition, a hydrographic entity has a so-called main denomination. Rule for constructing the generic code of the hydrographic entity: Each hydrographic entity shall be assigned a unique 3-digit (5, 6 and 7th character) number for the environment and the river basin area(s) to which it belongs: it is the number of the hydrographic entity. A hydrographic entity belonging to more than one zone retains its number d' entity in all the areas concerned. Two hydrographic entities d' the same medium belonging to two different sub-milies will have numbers of #x27; separate entity. The first four characters of the generic code correspond to all the invariant codes of the river basin areas, the rest of the characters being replaced by dashes ‘-’. For example, the “Viveronne” watercourse has the entity’s number: 050 and for middle code: 0. This watercourse is located within a single hydrographic area: P737. Its generic code is therefore: P7370500 The river “La Dronne” has the entity number: 025 and for middle code: 0. This watercourse crosses several hydrographic areas (even several sub-sectors): P746, P744, P742, P70, P734, P731, P730, P716, P715, P714, P711, P710, P702, P701, P700. Of these codes, only the two characters are invariant. Its generic code is therefore: P7--0250 Similarly, the Garonne has as its entity number: 000 and for middle code: 0. This course runs through several hydrographic areas (all starting with “0”. Its generic code is: 0---00000 A surface hydrographic entity is a hydrographic entity comprising the water planes and linear entities whose wide areas (above 50 metres) are represented by surface elements. A hydrographic entity is broken down into surface hydrographic elements. In some cases, a surface hydrographic entity may be traversed by one or more watercourses — case of water plans. Nevertheless, it is retained that a single hydrographic entity, known as the main watercourse of the plan of #x27;water. On the other hand, a hydrographic entity may be crossed/contained by a set of elementary sections. BDCarthage Guadeloupe is maintained by DEAL Guadeloupe. The structure of the database is identical to the metropolis format.The BD Carthage Guadeloupe is a version validated by the SIE but not by the \#x27;IGN and that therefore problems of {\#x27;incompatibility with IGN referentials can occur (and that{#x27; an update &officialiser; the Carthage comic with IGN validation). __Origin__ BDCarthage Guadeloupe is maintained by DEAL Guadeloupe. __Partner organisations__ ASH __Links annexes__ * [see documentation on Sandre website](http://www.sandre.eaufrance.fr/?urn=urn:sandre:dictionnaire:ETH::entite:EntiteHydroSurface:ressource:latest:::html) * [see Dictionary & Hydrographic Reference (ETH)" on the Sandre website](http://www.sandre.eaufrance.fr/?urn=urn:sandre:notice:dictionnaire::theme:ETH:ressource:latest:::html) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/443b6531d88e3ec11c342593b0ac7ee328541bc5)
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