Hydrogeological entities — Mayotte

Description

The hydrogeological entity is a part of the geological space, aquifer or non-aquifer, corresponding to a physical system characterised by its state and hydrogeological characteristics. The hydrogeological entity must be understood in a systemic sense and corresponds to a breakdown of the geological space carried out at a given stage of knowledge in particular for deep systems. The constitution of hydrogeological entities is derived from knowledge at a given date of the underground environment (geological map, geological cutting, geological log, structural diagram and piezometric map). Hydrogeological entities can be multi-part. Hydrogeological entities cover the entire territory ensuring a horizontal and vertical relationship of entities in accordance with the principle of completeness. A hydrogeological entity is a part of the geological space: — delimited on a certain scale (level of use) — attached to a type of geological formation (theme) — defined by its aquifer potentialities (nature) — characterised by a type of porosity (mid) — characterised by the presence or not of a tablecloth, which may be free, captive or free and captive (state) They have been defined in accordance with rules developed within the framework of a common national methodology and validated by a national steering committee under the responsibility of the Ministry responsible for the environment. A hydrogeological entity will be represented by its orthogonal ground projection. The reference scale is the 1/50 000th, i.e. the national geological reference scale. Each entity has a code that is assigned by the BRGM (Order of 26 July 2010, SNDE). According to Sandre, dictionary of the hydrogeological repository SAQ version 2.2

Resources

Name Format Description Link
0 https://services.sandre.eaufrance.fr/telechargement/geo/SAQ/BDLISA/3/Lithologie/Lithologie_MYT.csv
0 https://services.sandre.eaufrance.fr/telechargement/geo/SAQ/BDLISA/3/EntiteHydroGeol/SHP/EntiteHydroGeol_MYT-shp.zip
0 https://services.sandre.eaufrance.fr/telechargement/geo/SAQ/BDLISA/3/TME/TME_MYT.csv
0 https://services.sandre.eaufrance.fr/telechargement/geo/SAQ/BDLISA/3/EntiteHydroGeol/GPKG/EntiteHydroGeol_MYT.gpkg
0 https://services.sandre.eaufrance.fr/telechargement/geo/SAQ/BDLISA/3/PileEntiteHydroGeol/PileEntiteHydroGeol_MYT.csv
0 https://services.sandre.eaufrance.fr/telechargement/geo/SAQ/BDLISA/3/GenEntiHydroGeol/GenEntiHydroGeol_MYT.csv

Tags

  • france
  • données-ouvertes
  • mayotte
  • bdlisa
  • hvd

Topics

  • ENVI

Categories