GIS, maps and GeoAI
Flood inundation and hazard mapping
Combining terrain, hydrology and gauges into flood extent and depth for site risk.
We design and operate.
WMO-No. 168 Guide to Hydrological Practices
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Scenario simulation: a flood run through the twin of a town, the rising edge in red. The loop, step by step: 1. A street, a river and a model of both. 2. The model sets a hundred-year storm. 3. Signatures are checked before any model runs. 4. It simulates water on the street, minute by minute. 5. The edge releases confirmed results only. 6. Virtual gauges record the rising depth. 7. Each reading is stamped with time and place. 8. A planner adds a retention basin. 9. Instruments confirm the response took effect. 10. The edge verifies every signature first. 11. The simulation runs again with the basin. 12. Only a confirmed result leaves the edge. 13. The report shows the depth fall by half. 14. The alert arrives with its evidence attached. 15. The whole chain is archived for audit. 16. Everything settles back to idle.
01 / 16
A street, a river and a model of both
Nexus Observatory/
Digital twins and simulation/
Scenario simulationScenario simulation, inside Digital twins and simulation: flood inundation and hazard mapping, spatial statistics and interpolation, hazard and exposure mapping, multisensor fusion and more. Every item is traced to its specification, from WMO-No. 168 Guide to Hydrological Practices to ISO 19157-1:2023 (data quality), and runs on the open Observatory Protocol.
Plan with usArchitectureThe protocolAt a glance
Combining EO, in-situ, RF and network data into one picture with provenance for each input. In scenario simulation, part of Digital twins and simulation, the multimodal fusion and agentic operations layer holds multisensor fusion, drawn against W3C SOSA/SSN ontology and OGC SensorThings API.
The problem
A real flood or heatwave is an expensive way to test a design. Scenario simulation stresses the design in the model first, so weak points are fixed before the event, not during it. The reference frames, formats, services, analysis methods, machine learning and 3D models that turn observations into located, queryable and decision-ready geographic information.
Key facts
Components
Interfaces
Where it works
In the story below
Scenes · 6
Next steps
Plan a deploymentOpen the Field Deployment StudioSee Digital twins and simulationTalk to salesDigital twins and simulation · Scenario simulation
A real flood or heatwave is an expensive way to test a design. Scenario simulation stresses the design in the model first, so weak points are fixed before the event, not during it. The reference frames, formats, services, analysis methods, machine learning and 3D models that turn observations into located, queryable and decision-ready geographic information.
Multimodal fusion and agentic operations
Combining EO, in-situ, RF and network data into one picture with provenance for each input. In scenario simulation, part of Digital twins and simulation, the multimodal fusion and agentic operations layer holds multisensor fusion, drawn against W3C SOSA/SSN ontology and OGC SensorThings API.
Spatial analysis and siting
Autocorrelation, hot spots, kriging and uncertainty for observations that are sparse in space. In scenario simulation, part of Digital twins and simulation, the spatial analysis and siting layer holds spatial statistics and interpolation, drawn against ISO 19157-1:2023 and JCGM 100:2008.
Foundation models for Earth observation
Flood, fire, landslide and subsidence mapping that feeds risk and response decisions. In scenario simulation, part of Digital twins and simulation, the foundation models for Earth observation and geospatial layer holds hazard and exposure mapping, drawn against CEOS Analysis Ready Data framework and ISO 19157-1.
What you get
Simulation methods with worked examples and open terrain and grid layers are public. Drone survey and 3D site twins, network planning studies and scenario studies are contracted. Studies are priced per site and per scenario, and the models remain yours after delivery.
Talk to salesNext step
Tell us the sites, the systems scenario simulation must work with and the outcome you need, with a map or a list of addresses if you have one. An engineer replies with a survey proposal, a design and a scope for scenario simulation, and the plan grows from one site to the network you need.
Plan a deploymentOpen the Field Deployment StudioSee Digital twins and simulation01What it is
The reference frames, formats, services, analysis methods, machine learning and 3D models that turn observations into located, queryable and decision-ready geographic information. AI from model to accountable operation: edge inference and model optimisation, foundation models for Earth observation and geospatial work, time-series and sensor AI, multimodal fusion and supervised agentic operations, federated and privacy-preserving learning, physical AI and robotics within stated red lines, MLOps, evaluation and model risk, and the governance frameworks that apply to each. Each technology below carries what it is, what we do with it, and the standard it is drawn against.
GIS, maps and GeoAI
Combining terrain, hydrology and gauges into flood extent and depth for site risk.
We design and operate.
WMO-No. 168 Guide to Hydrological Practices
GIS, maps and GeoAI
Autocorrelation, hot spots, kriging and uncertainty for observations that are sparse in space.
We design and operate.
ISO 19157-1:2023 (data quality) · JCGM 100:2008 (GUM)
AI systems
Flood, fire, landslide and subsidence mapping that feeds risk and response decisions.
We design, integrate and operate.
CEOS Analysis Ready Data framework · ISO 19157-1
AI systems
Combining EO, in-situ, RF and network data into one picture with provenance for each input.
We design, integrate and operate.
W3C SOSA/SSN ontology · OGC SensorThings API
AI systems
Live models of physical sites and networks used to test AI decisions before they take effect.
We design, integrate and operate.
ISO/IEC 30173 (digital twin concepts) · ITU-T Y.3090 (digital twin network)
02Architecture
Scenario simulation draws on the spectrum below; the highlighted layers carry this area, and the protocol functions it speaks are marked.
Reference systems and geodesy
7
Vector, raster and array formats
10
Tiling, maps and visual services
7
APIs, catalogues and discrete global grids
8
Spatial analysis and siting
10
GeoAI
10
3D, BIM and digital twins
8
Metadata, quality and publication
5
Platforms and orbits
8
Optical, spectral and thermal sensors
8
Radar, lidar and microwave sensors
10
Processing levels and analysis-ready data
9
Calibration and validation
8
Tasking, ground segment and access
9
Data cubes, analysis and archives
7
Frontier and research
8
01Join Identity, attestation quote, signed policy.
02Admit Admitted for a stated scope, nothing wider.
03Describe What, where, how and by whom, with calibration.
04Time One clock across the grid, with its error bound.
05Observe Every value with quality and provenance.
06Qualify Tested against the specification, state on record.
07Federate Signed exchange across grids and trust domains.
08Orchestrate Software and configuration by signed plan.
09Correct A correction marks what depends on it and publishes a new version.
10Exchange Products reach people and applications through versioned interfaces.
11Prove Signed proof receipts that an independent verifier can check.
12Exit and decommission An open exit path, and a record that closes.
03On the grid
Real elevation, line of sight, an orbit swath and a GeoAI pass, each an interactive explainer on open terrain data with its source shown.
04In the field
Deployment scenarios from the sector research that rely on scenario simulation.
Agriculture05Open and enterprise
The open counterpart lives on the main site for anyone to read and run. The enterprise service is designed, deployed and operated with you, under contract.
Open, on the main site
Enterprise, on this site
06The rest of the line
Survey, design, deployment and operation for scenario simulation. The form names who receives your details.
Talk to usAsk for a quoteMore presentations
Each opens as a full-screen presentation: deeper pages on the same subject, explainers, stories, guided tours of the places, network scenes and the observatories that came before.
All presentations for this pageScenario simulation, inside Digital twins and simulation: flood inundation and hazard mapping, spatial statistics and interpolation, hazard and exposure mapping, multisensor fusion and more. Every item is traced to its specification, from WMO-No. 168 Guide to Hydrological Practices to ISO 19157-1:2023 (data quality), and runs on the open Observatory Protocol.
Combining EO, in-situ, RF and network data into one picture with provenance for each input. In scenario simulation, part of Digital twins and simulation, the multimodal fusion and agentic operations layer holds multisensor fusion, drawn against W3C SOSA/SSN ontology and OGC SensorThings API.
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A real flood or heatwave is an expensive way to test a design. Scenario simulation stresses the design in the model first, so weak points are fixed before the event, not during it. The reference frames, formats, services, analysis methods, machine learning and 3D models that turn observations into located, queryable and decision-ready geographic information.
false
false
false
false
false
The open counterpart lives on the main site for anyone to read and run. The enterprise service is designed, deployed and operated with you, under contract.