The stack
One river, eight years.
A hydro dam and its new reservoir on the Peace River in northeast British Columbia: 250 km², read in 2017 and 2025.
Sentinel-2 · Sentinel-1 · Copernicus DEM
Industry · Infrastructure
Big works, watched from the first clearing to the last pour.
Dams, roads, rail and utility networks change the ground around them for years. The same engines measure what moved, what flooded and what was cleared, and send an engineer to the part that needs eyes.
- Change engine
- Sheet registration
- Utility asset maps
- Atlas
56.20° N · 120.97° W · 250 km²
Eight years of a dam and its reservoir.
Terrain
Radar2025
2017
Shoreline 01 · 684 ha
Contains modified Copernicus Sentinel data (2017, 2025). Copernicus DEM GLO-30, provided under COPERNICUS by the European Union and ESA.
Real
Every layer is public Sentinel-2, Sentinel-1 or Copernicus terrain data over a public hydro project. New water, cleared ground and the flagged shoreline are computed by a script in this site's repository.
Illustrative
The project is a public example, not a client. The shoreline check is the action an engineer would take next, not a finding about the owner.
What runs here.
Each product below works on infrastructure today. Atlas is the engine they share.
Change engine
Two dates, three signals, one polygon per change, each with an area and a reason.
OpenSheet registration
Old as-built drawings and parcel sheets placed on the satellite frame, with most control found from the roads.
OpenUtility asset maps
Water, wastewater and utility networks on one map, from SPARC's delivered work.
Atlas
The engine under every product: fusion, registration, detection, and an agent on the map.
Open
Use cases
8 detectors for infrastructure.
Open the use-case matrixWhat it has shown.
Numbers from real runs, each with the caveat it needs. Nothing here is a claim the run did not make.
- 1,752 ha
of land turned to water inside one frame
Computed on this page from public imagery, 2017 against 2025.
- 600
government deployments by the SPARC group, which is about 30 years old
In 9 countries, from the group brochure. The group is distinct from SPARC Global, its Canadian entity, which has a core team of 20.
- 1
grid for optical, radar and terrain
Every layer is warped to the same cells before anything is compared.
How it works.
Open any part for the method, the numbers and where to read more.
SPARC's group has delivered utility asset management for water and wastewater networks: intakes, pump houses, treatment plants, mains, wells, reservoirs, valves and manholes, mapped from high-resolution imagery, survey-grade GPS and mobile collection.
The same offer covers estate and infrastructure management, smart-city data infrastructure, and transport permits and routing.
Why it matters.
Public figures on the size of the problem.
The SPARC group has worked with governments for about 30 years, with about 600 deployments in 9 countries.
Source: industry research (SPARC group brochure)
Infrastructure · Next step
See it on your own ground.
Send an area and a question. I will say what the sensors can and cannot answer before anyone builds anything.