Side-by-side dispersion scenario analysis — Tier-1 Gaussian model with Pasquill-Gifford coefficients
Scenario A
Drop JSON file here or click "Load File"
Scenario B
Drop JSON file here or click "Load File"
Delta Metrics
Parameter Comparison
Parameter
Scenario A
Scenario B
Status
Visualisations
Centerline Concentration C(x)/Q — both scenarios
Hazard Zones — overhead view (A solid, B dashed)
What-If Analysis
Scenario B live recompute · Tier-1 Gaussian model
Adjust parameters for Scenario B. Concentration and hazard distances are recomputed inline using Pasquill-Gifford Gaussian plume (Tier-1 screening model). Charts update in real-time.
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Load both scenarios to begin comparison
Use the file pickers, paste JSON, or click "Load Demo Scenarios" to see a pre-built H2S Class-D vs Class-F example.