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assembl lab · site terrain

See where rain goes on a site

Pick a site anywhere in Aotearoa. The ground comes from LINZ LiDAR at 1 m. Turn it in 3D, start rain to watch where water runs and pools, and draw a line for an elevation profile.

Rotorua lakefront · 400 m square
Reading LiDAR from LINZ…
Speed 2 storm min/s
Ponding water

Indicative overland flow from LiDAR terrain. Not a flood model or engineering advice. Check with a qualified engineer.

Elevation: LINZ, CC BY 4.0 · linz/elevation

For architects: an early look at overland flow paths across a site, the kind of thing Building Code clause E1 (surface water) asks you to account for. It does not replace a flood assessment or a stormwater design.

Map: OpenStreetMap contributors · Search: Nominatim · Elevation: Toitū Te Whenua LINZ, CC BY 4.0 · Read in your browser from the public LINZ bucket.