Description
The BD LISA (Boundaries of Aquifer Systems Database) repository currently in circulation is version 3.
This repository comprises the following spatial datasets:
- Level 3 hydrogeological entities (local);
- Elementary polygons delimiting each single stack of hydrogeological entities;
- Karst areas, areas characterized as being of karst environment or feeding karst sources;
- Movable alterite areas, extension polygons of areas where the presence of movable altered geological formations (saprolite) has been identified or is assumed.
As well as additional information tables:
- The multi-scale table comprising all the hydrogeological entities mapped (levels 1, 2 and 3)
- The genealogy table summarizing the changes made between version 2 and version 3 of the BDLISA.
- The table of piles of hydrogeological entities that associates each elementary polygon with the level 3 hydrogeological entities present under this polygon, by ordering them vertically.
- The lithology table that associates each hydrogeological entity with the rock nature or natures that characterize it.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| EntiteHydroGeol | Unknown | Open resource | |
| Report an anomaly or propose a correction on the BDLISA forge | Unknown | Open resource | |
| Consult the interactive dictionary on the Sandre website | Unknown | Open resource | |
| Consult the delivery description of BDLISA v.3 | Unknown | Open resource | |
| Consult the dictionary "Hydrogeological Reference System (SAQ)" | Unknown | Open resource | |
| Download BDLISA v.3 data | Unknown | Open resource | |
| Consult the exchange scenario of the hydrogeological reference frame | Unknown | Open resource |