Tahoe Wildfire
Satellite Analysis
Real-time fire perimeter mapping, burn severity assessment and evacuation zone delineation using Copernicus Sentinel-2 imagery over the Lake Tahoe basin.
// Analysis Methodology
Satellite Data Acquisition
Sentinel-2 multispectral imagery (10 m resolution) acquired over the Lake Tahoe basin within 12 hours of the fire event. Short-Wave Infrared (SWIR) bands used to distinguish active fire fronts from smoke.
Active Fire Front Detection
SWIR false-colour composites (B12/B11/B4) highlight active combustion areas in red-orange. Thermal anomalies confirmed against MODIS FIRMS hotspot data. Fire perimeter traced at 20 m precision.
Burn Severity Mapping
Normalised Burn Ratio (NBR = (B8A − B12) / (B8A + B12)) computed before/after the event. dNBR index classified into high / moderate / low burn severity — critical input for post-fire damage assessment.
Evacuation Zone Delineation
Buffer analysis combined with road-network topology identifies safe egress corridors. Zones colour-coded by risk level and overlaid on topographic context — directly exportable to incident command systems.
Operational Output
Structured intelligence report generated: affected area extent (km²), population at risk, critical infrastructure in fire path, recommended evacuation priorities. Delivered within 4 hours of data acquisition.
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We deliver satellite-based fire assessments within hours of an event — ready for incident command integration.
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