Atlas · Tunisia
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Data Quality
DATA
Data Quality
A transparent scorecard for every dataset: valid shapes, provenance coverage, internal consistency, verification and licence clarity. Known issues are listed openly so scientists can judge fitness for use.
Average score
94 / 100
Across all datasets
Features with provenance
74,161 / 74,161
Every feature traced to its source
Geometries repaired
81
Invalid shapes fixed on import
Datasets with a stated licence
3 / 17
Others held for internal use
Scorecard
Score = valid geometry 30% · provenance 25% · no flagged values 15% · unique IDs 15% · verification 10% · licence 5%
| Dataset | Score | Features | Provenance | No geometry | Repaired | Duplicate IDs | Flagged | Rejected values | Verified | Licence |
|---|---|---|---|---|---|---|---|---|---|---|
| Heliport | 95/100 |
4 | 4 | 0 | 0 | 0 | 0 | 0 | not stated | |
| Large airport | 95/100 |
23 | 23 | 0 | 0 | 0 | 0 | 0 | not stated | |
| Operational Land/Seascape | 95/100 |
70 | 70 | 0 | 10 | 0 | 0 | 0 | not stated | |
| Operational Land/Seascape | 95/100 |
70 | 70 | 0 | 10 | 0 | 0 | 0 | not stated | |
| Operational Landscape | 95/100 |
79 | 79 | 0 | 13 | 0 | 0 | 0 | not stated | |
| Africa_WWF_Priority_202104_Operational_Lan... | 95/100 |
96 | 96 | 0 | 16 | 0 | 0 | 0 | not stated | |
| Fibre Cable Landing Stations | 95/100 |
126 | 126 | 0 | 0 | 0 | 0 | 0 | not stated | |
| Power Plants (Power output MW) | 95/100 |
642 | 642 | 0 | 0 | 0 | 0 | 0 | not stated | |
| Small airport | 95/100 |
1,979 | 1,979 | 0 | 0 | 0 | 0 | 0 | not stated | |
| Dams | 95/100 |
2,586 | 2,586 | 0 | 0 | 0 | 0 | 0 | not stated | |
| Districts | 95/100 |
6,099 | 6,099 | 0 | 13 | 0 | 0 | 0 | not stated | |
| World Database on Protected Areas | 95/100 |
7,438 | 7,438 | 0 | 1 | 0 | 0 | 0 | not stated | |
| Irrigated Areas | 95/100 |
23,095 | 23,095 | 0 | 1 | 0 | 0 | 0 | not stated | |
| Agro-Ecological Zones | 95/100 |
25,791 | 25,791 | 0 | 17 | 0 | 0 | 0 | not stated | |
| Seagrass (UNEP-WCMC): Tunisia | 90/100 |
6,057 | 6,057 | 0 | 0 | 0 | 0 | 0 | — | stated |
| Salt marsh (UNEP-WCMC): Tunisia | 90/100 |
2 | 2 | 0 | 0 | 0 | 0 | 0 | — | stated |
| Community and nature projects (UNDP): Tuni... | 90/100 |
4 | 4 | 0 | 0 | 0 | 0 | 0 | — | stated |
Known issues & assumptions
Stated plainly so nobody is surprised laterField-plot canopy cover above 100%
One or more plots report a cover value over 100% (up to 6,070). That cannot be a percentage, so Atlas rejects the value, keeps the original and flags the plot.
Field-survey photos are not in the archive yet
The 139 plot photographs are not part of the archive yet. Their original links are kept, so the photos can be added when the publisher shares the image files.
No licence stated by the publisher
Atlas holds an archival copy for scientific and internal use and asks users to cite WWF Kenya, KMFRI and KFS. We are seeking written permission for wider redistribution.
Degree-based length and area fields excluded
Several source fields (st_area, st_length, Shape_Leng) are in degrees or square degrees, not metres or hectares. Atlas excludes them and recomputes from geometry.
Turtle timestamps assumed UTC
The source gives times without a time zone. UTC is assumed (standard for satellite telemetry) and the assumption is recorded with the data.
Unpopulated historic-area fields
The mangrove block layers carry 1990–2018 area fields that are all zero. They are treated as empty placeholders, not measurements.