Atlas · Equatorial Guinea / 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

FormationArea (ha)zLocation
Mangrove3,435.45.261.0309, 9.8103
Mangrove2,824.25.151.0861, 9.8771
Mangrove1,893.74.931.1834, 9.7136
Mangrove1,833.44.911.0958, 9.7901
Mangrove1,352.94.741.1373, 9.7409
Mangrove1,169.14.661.1979, 9.7414
Mangrove1,070.94.611.1112, 9.6707
Mangrove922.24.521.5531, 9.6826
Mangrove849.94.481.1257, 9.8596
Mangrove827.64.461.5286, 9.7404

Most irregular outlines

Shape index (perimeter ÷ circle perimeter): high values suggest jagged or sliver-like edges

FormationArea (ha)Shape idxLocation
Mangrove922.1713.01.5531, 9.6826
Mangrove827.6510.71.5286, 9.7404
Mangrove3,435.4210.01.0309, 9.8103
Mangrove282.609.01.6051, 9.7959
Mangrove119.738.81.5410, 9.7988
Mangrove736.448.41.1459, 9.8777
Mangrove107.188.32.2338, 9.8282
Mangrove2,824.217.91.0861, 9.8771
Mangrove1,893.687.71.1834, 9.7136
Mangrove849.857.61.1257, 9.8596
Mangrove1,169.127.61.1979, 9.7414
Mangrove268.717.41.2084, 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.
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