A 1991 geospatial map of Tunisia's surface water resources and saline soils, depicting polygon features such as lakes, reservoirs, chotts, and sabkhas. The map was produced by the country's Ministry of Agriculture, General Directorate of Water Resources. The dataset originates from a single collection year.
Use Cases
- Analyze the spatial distribution of saline soil features (sabkhas) relative to surface water bodies (lakes, chotts).
- Map historical extents of reservoirs and lakes from 1991 for change detection studies.
- Use polygon shapes of water bodies to calculate approximate surface area coverage for hydrological modeling.
- Correlate the locations of chotts (seasonal salt lakes) with regional climate or geological data.
Strengths
- Provides a complete national-scale map of Tunisia's water features.
- Includes multiple distinct feature types: lakes, reservoirs, chotts, and sabkhas.
- Data has a clear provenance from a national government ministry.
Limitations
- Data is from a single year (1991) and is not current.
- Specific quantitative attributes like area, depth, or salinity levels for the polygons are unknown.
- The original map's scale, resolution, and digitization accuracy are unspecified.
Provenance
- Source
- MINISTERE DE L'AGRICULTURE. DIRECTION GENERALE DE RESOURCES EN EAU (Tunisia's Ministry of Agriculture, General Directorate of Water Resources).
- Collection Method
- Original map production; method of digitization into coverage is unknown.
- Time Range
- 1991
- Freshness
- null
- Geography
- Tunisia