01
Reconstruct
A real urban site, rebuilt from whatever exists: satellite imagery, drone footage, phone video. Public LiDAR fills in the ground.
Satellite imageryDrone footagePhone videoPublic LiDAR
See which buildings take water, and when.
We reconstruct a city from the footage that already exists, then play the storm forward over it: which buildings take water, when, and how deep.
Storm · hour 6.3
92buildings flooded
23.6 ha · 87,598 m³
- Deepest
- max · arrives
- Apartments
- 1.40 m · 5.0 h
- House
- 1.18 m · 3.0 h
- Building #2074
- 0.96 m · 0.7 h
- Industrial
- 0.92 m · 6.0 h
- Parking
- 0.91 m · 6.0 h
San Diego, reconstructed from satellite imagery and public LiDAR. A simulated storm at hour 6.301.5 m at the building
How it works
The same world model, with the storm played over it.
Flood prediction runs on the model we already build for damage assessment, so the city that floods is the one that gets measured and priced afterwards.
02
Simulate
The storm plays forward over the reconstructed city, so water runs down the streets that are actually there and around the buildings that are actually there.
03
Assimilate
During a live event, the model takes in whatever sensing there is and updates the picture. It does not depend on a gauge network being there.
High-water marksFlood sensorsGeotagged photosCCTV frames
04
Triage
Every structure gets a maximum-inundation figure: how deep the water gets at it and when it arrives, ready to rank.
San Diego
The storm at hour six.
Downtown San Diego, reconstructed from satellite imagery with public LiDAR for the ground. On the right, the sensors feeding the model and the flooded buildings, each with its depth and time of arrival.
92buildings flooded at hour 6.3
23.6 haflooded area
87,598 m³water on the ground
1.99 mbay stage
What it is for
From the first hours of a flood to the recovery after it.
Rescue triage
A ranked list of the structures taking the most water and when it reaches them, so crews go first where they are needed most.
Recovery cost estimates
The same per-structure depths feed the repair estimate, on the model the damage assessment already uses.
Validation
Validated on a past flash flood against high-water marks held out of the model.
Get started
Know which buildings take water, while there is still time to act.
Bring us the imagery a city already has. We reconstruct it and play the storm forward over it.