Atlas · Equatorial Guinea
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Signals & Anomalies
INTELLIGENCE
Signals & anomalies
Statistical checks that flag polygons and patterns that look unusual. They are prompts for review, not errors: an unusual polygon can be a real feature.
Polygons < 0.01 ha
0
0.0% of all polygons
Polygons < 0.001 ha
0
Likely slivers (≈ 10 m²)
Geometries repaired
55,235
Invalid shapes fixed on import
Effective mesh size
1,378.4 ha
Largest patch 12.9% of area
Largest-size outliers
z-score of ln(area): how many standard deviations above typical
| Formation | Area (ha) | z | Location |
|---|---|---|---|
| Mangrove | 3,435.4 | 5.26 | 1.0309, 9.8103 |
| Mangrove | 2,824.2 | 5.15 | 1.0861, 9.8771 |
| Mangrove | 1,893.7 | 4.93 | 1.1834, 9.7136 |
| Mangrove | 1,833.4 | 4.91 | 1.0958, 9.7901 |
| Mangrove | 1,352.9 | 4.74 | 1.1373, 9.7409 |
| Mangrove | 1,169.1 | 4.66 | 1.1979, 9.7414 |
| Mangrove | 1,070.9 | 4.61 | 1.1112, 9.6707 |
| Mangrove | 922.2 | 4.52 | 1.5531, 9.6826 |
| Mangrove | 849.9 | 4.48 | 1.1257, 9.8596 |
| Mangrove | 827.6 | 4.46 | 1.5286, 9.7404 |
Most irregular outlines
Shape index (perimeter ÷ circle perimeter): high values suggest jagged or sliver-like edges
| Formation | Area (ha) | Shape idx | Location |
|---|---|---|---|
| Mangrove | 922.17 | 13.0 | 1.5531, 9.6826 |
| Mangrove | 827.65 | 10.7 | 1.5286, 9.7404 |
| Mangrove | 3,435.42 | 10.0 | 1.0309, 9.8103 |
| Mangrove | 282.60 | 9.0 | 1.6051, 9.7959 |
| Mangrove | 119.73 | 8.8 | 1.5410, 9.7988 |
| Mangrove | 736.44 | 8.4 | 1.1459, 9.8777 |
| Mangrove | 107.18 | 8.3 | 2.2338, 9.8282 |
| Mangrove | 2,824.21 | 7.9 | 1.0861, 9.8771 |
| Mangrove | 1,893.68 | 7.7 | 1.1834, 9.7136 |
| Mangrove | 849.85 | 7.6 | 1.1257, 9.8596 |
| Mangrove | 1,169.12 | 7.6 | 1.1979, 9.7414 |
| Mangrove | 268.71 | 7.4 | 1.2084, 9.8044 |
How to use this page. Check flagged polygons against recent satellite imagery. Remove genuine mapping artefacts in the next source update; keep real features. Atlas never edits the source data silently.