Groundwater bodies — Guadeloupe — Local State Version 2013

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Provided by International Office for Water (IOW)

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Dataset information

Catalog
Country of origin
Updated
Created
Available languages
French
Keywords
FRANCE, données ouvertes, EAU SOUTERRAINE, GUADELOUPE, HYDROGEOLOGIE
Quality scoring
155

Dataset description

A body of groundwater is a distinct volume of groundwater within one or more aquifers, constituting the elementary separation of aquatic environments to be the WFD assessment unit. It makes it possible to define environmental objectives, to assess the state of the media and subsequently to verify the achievement of those objectives. The groundwater bodies, building on the work carried out on the BDRHF V1 hydrogeological benchmark, were identified and delimited for the first time in 2004 and were updated in 2010. They were reported to the European Commission on the implementation of the WFD on 22 March 2010, followed by a corrective report in February 2011, taking into account the latest updates. At the beginning of 2013, work was carried out to bring the version reported to Europe back to Europe in February 2011 in order to bring it into line with the Sandre format. This version is always available on the pike-perch website; However, it contains a number of anomalies, which are present in the reported data and highlighted in the BRGM/RP-62141-FR report. These anomalies have been corrected in this version of the Water Mass: The version of the ‘internal 2013 water body benchmark’ results from the update by the Lieux State, in accordance with the Sandre data models and consolidated at national level, on the website www.sandre.eaufrance.fr. This reference version comes from the State of Premises 2013 and is not reported to the European Commission. This version used at national level makes it possible to prepare the 2016-2021 SDAGE. The layers are distributed in a format consistent with the picker data dictionary of the Water Benchmark Ref. version 1.2. The breakdown chosen for water bodies follows the following main principles: Water bodies are delimited on the basis of geological and hydrogeological criteria; Recutting of water bodies to take account of the effects of anthropogenic pressures should remain limited. Water body boundaries must be stable and sustainable Like surface water bodies, the delimitation of groundwater bodies is organised on the basis of a typology. This typology is largely based on that developed for hydrogeological entities defined in the context of the revision of the HF DB. It is based on the geological nature and hydrodynamic behaviour or large operation of aquifer systems (nature, flow rate). It comprises two levels of main and secondary characteristics. Water bodies may have exchanges between them. All water supply catchments, supplying more than 10 m³/day of drinking water or used for water supply for more than 50 people, must be included in a water body. Deep groundwater, unrelated to water courses and surface ecosystems, in which no abstraction takes place and which is not likely to be used for drinking water because of its quality (salinity, temperature, etc.), or for technical and economic reasons (disproportionate cost of abstraction) may not constitute bodies of water. Given its size, a body of water may have a degree of spatial heterogeneity in terms of both its hydrogeological characteristics and its qualitative and quantitative state. At any point more than one water body may overlap.
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