Atlas · Mauritania / 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
34.9 ha
Largest patch 29.0% of area

Largest-size outliers

z-score of ln(area): how many standard deviations above typical

FormationArea (ha)zLocation
Mangrove63.52.8516.1027, -16.4493
Mangrove44.22.6316.1009, -16.4576
Mangrove34.52.4816.0861, -16.4597
Mangrove17.32.0716.3263, -16.4395
Mangrove6.21.4616.0827, -16.4647
Mangrove4.91.3216.2203, -16.5015
Mangrove3.61.1416.3445, -16.4395
Mangrove3.51.1216.0885, -16.4745
Mangrove3.51.1216.3158, -16.4435
Mangrove3.11.0519.3871, -16.5377

Most irregular outlines

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

FormationArea (ha)Shape idxLocation
Mangrove63.533.416.1027, -16.4493
Mangrove34.472.916.0861, -16.4597
Mangrove2.152.716.3364, -16.4413
Mangrove44.192.616.1009, -16.4576
Mangrove3.612.516.3445, -16.4395
Mangrove4.902.416.2203, -16.5015
Mangrove1.802.316.2234, -16.4151
Mangrove1.812.316.0944, -16.4547
Mangrove1.982.216.2241, -16.4980
Mangrove17.262.216.3263, -16.4395
Mangrove0.952.016.0926, -16.4573
Mangrove0.952.016.1136, -16.4572
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.
Guest preview · 173s left Explore until the timer ends. Then you’ll be asked to log in or create an account (about two minutes) to keep going.
Ask Atlas