French Groundwater Bodies Polygons for WFD 2022 Reporting

Groundwater bodies are separate volumes of groundwater within aquifers, serving as the basic assessment unit for the EU Water Framework Directive. The dataset is derived from the BDLISA hydrogeological repository and disseminated in a format compliant with the SANDRE Water Body Repository data dictionary, version 1.4. The International Office for Water (IOW) is the organization responsible for the data.

Use Cases

• Delineating aquifer systems for environmental assessment based on geological and hydrogeological criteria.
• Modeling groundwater flow and interactions between overlapping water bodies.
• Identifying areas for water resource protection based on withdrawal criteria (e.g., >10 m3/day or >50 persons).
• Applying a two-level typology to classify aquifer systems by geological nature and hydrodynamic behavior.

Strengths

• Based on the established BDLISA hydrogeological repository, suggesting a foundation in prior scientific work.
• Methodology is defined by a BRGM guide from 2003, providing a documented framework for delineation.
• Compliant with the SANDRE Water Body Repository data dictionary, version 1.4, indicating standardization.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

International Office for Water (IOW)

Collection Method

Derived from work on the BDLISA hydrogeological repository, following a methodological guide from BRGM.

Time Range

Version is for 2022 reporting, but temporal coverage of the underlying data is unspecified.

Freshness

Version is specified as 'Rapportage 2022', but the last updated date is unknown.

Geography

France Entière (entire France)