Signal Atlas

Project 04

GeoRisk ANZ

Spatial exposure · NZ

Computes which supply zones and monitoring points a hazard actually touches, in the projection that makes the area true.

EPSG:2193 is the right projection for NZ area, and it is applied correctly — the transform is confined to ST_Area, predicates stay in the native CRS.

An aerial view of a rocky stream running through dense New Zealand forest.
Real-world context · Amos Haring / Unsplash

01 · Evidence

The result, with the gap left visible.

Supply zone ∩ affected area. Area is computed in EPSG:2193 — degrees would give a meaningless number.

Supply zone ∩ affected area. Area is computed in EPSG:2193 — degrees would give a meaningless number.