Atlas · Côte d'Ivoire / Methodologies
METHODOLOGIES

Proximity to pressures

Distance bands from LAPSSET and villages.

Intermediate 1 min read proximitydistanceLAPSSET

Method

For each mangrove polygon a representative point is taken (ST_PointOnSurface). Distance to the union of the reference geometries is measured on the ellipsoid in kilometres and polygons are binned (≤2, 2–5, 5–10, 10–25, >25 km). Areas in each band are summed.

Limits. Straight-line distance, not travel time or hydrological connectivity. Only 52 villages are mapped, so village proximity is a lower bound.

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