Analysing building exposure…
Flood Exposure Explorer
Buildings are recoloured live as the sea-level scenario changes
Sea Level Rise Scenario
1.0 m
Map Layers
Building — exposed
Building — not exposed
Modelled flood boundary
How "exposed" is defined here: a building is flagged exposed if its centroid is
within ~150m of the modelled flood boundary for the selected sea-level scenario — a simplified
proxy, not a true flood-fill model. Distances are approximated in degrees→metres locally rather
than reprojected to NZTM (EPSG:2193), unlike the proper workflow from Lecture 4. This is exactly
the kind of simplification you should be checking for, not trusting blindly (Lecture 2).