Republic of Tunisia

Elevation, slope and contours for every point in Tunisia, ready per governorate: a 30 m elevation model, six slope classes, 150,649 contour lines at 20 m, and a per-delegation table of minimum and maximum elevation, mean slope and share of steep land — in UTM 32N for direct metric measurement.

In short

Highest point in القصرين الجنوبية (1,530 m); lowest in تمغزة (-23 m).

150,649 contour lines at 20 m across 24 layers.

The steepest delegations are listed in the table.

Tunisia terrain: 30 m elevation model, slope and 20 m contour lines per governorate — Reduced-resolution preview with a watermark; the full-resolution map is in the package.

Who it is for

Civil engineering and surveying offices, engineering and geography students, and road, energy and water projects.

Method: what we add to the raw data

Forty one-arc-second (about 30 m) elevation tiles were mosaicked, clipped to Tunisia with a 3 km margin and projected to UTM 32N.
The model was split per governorate with a 1 km margin into separate files as integer metres, keeping files small and fast.
Slope was computed in percent and grouped into six engineering classes, from under 2% flat to over 30% very steep.
Contour lines every 20 m with an elevation field were extracted, one layer per governorate in a single file.
For each delegation: minimum, maximum and mean elevation, mean slope, and the share of area steeper than 15%.

Product details

What you get	1 spatial layer in GeoPackage, 48 GeoTIFF rasters, 1 CSV table, lyrx and qml symbology for ArcGIS Pro and QGIS, a PNG map at 220 dpi, and an Arabic and English guide
Formats	GPKG, GeoTIFF, CSV, lyrx, qml, PNG
Coordinate system	WGS 84 (EPSG:4326)
Licence	Commercial use allowed for you and the organisation you buy for; no resale or redistribution
Delivery	A private download link valid for 24 hours, within 6 hours of payment confirmation
Package size	ZIP 239.4 MB
Personal data	The product contains no personal data

Spatial layers

delegations_terrain — polygons, 265: Delegations with elevation and slope statistics

Raster files (GeoTIFF)

dem_30m/ — 24 files, 30 m: Elevation model — one file per governorate
slope_classes_30m/ — 24 files, 30 m: Slope classes — one file per governorate

Tables

D106_delegations_terrain.csv — 265 rows: Terrain statistics per delegation

Limitations

The model is a surface model including buildings and trees, not bare ground alone.
Vertical accuracy is a few metres, so it does not replace topographic survey for detailed design.
Contours are extracted automatically without manual smoothing and may look jagged on plains and chotts.
UTM 32N covers all of Tunisia, which lies inside zone 32, so scale error is small.

FAQ

How long does delivery take?: Up to 6 hours after payment is confirmed.
How long does the download link last?: 24 hours, and it is renewed free on request.
Can I get a refund?: Digital products are not refundable once downloaded — unless the file is defective or does not match the description, in which case it is replaced or fully refunded.
What does the licence allow?: Commercial use is allowed for you and the organisation you buy for; resale or redistribution is not.

Tunisia terrain: 30 m elevation model, slope and 20 m contour lines per governorate