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One of the most valuable intelligence signals is when multiple independent data streams converge on the same geographic area. This often precedes significant events.

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How It Works

The system maintains a real-time grid of geographic cells (1° x 1° resolution). Each cell tracks four event types:
Event TypeSourceDetection Method
ProtestsACLED/GDELTDirect geolocation
Military FlightsOpenSkyADS-B position
Naval VesselsAIS streamShip position
EarthquakesUSGSEpicenter location
When 3 or more different event types occur within the same cell during a 24-hour window, a convergence alert is generated.

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Convergence Scoring

type_score = event_types × 25      # Max 100 (4 types)
count_boost = min(25, total_events × 2)
convergence_score = min(100, type_score + count_boost)

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Alert Thresholds

Types ConvergingScore RangeAlert Level
4 types80-100Critical
3 types60-80High
3 types (low count)40-60Medium

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Example Scenarios

Taiwan Strait Buildup
  • Cell: 25°N, 121°E
  • Events: Military flights (3), Naval vessels (2), Protests (1)
  • Score: 75 + 12 = 87 (Critical)
  • Signal: “Geographic Convergence (3 types) - military flights, naval vessels, protests”
Middle East Flashpoint
  • Cell: 32°N, 35°E
  • Events: Military flights (5), Protests (8), Earthquake (1)
  • Score: 75 + 25 = 100 (Critical)
  • Signal: Multiple activity streams converging on region

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Why This Matters

Individual data points are often noise. But when protests break out, military assets reposition, and seismic monitors detect anomalies in the same location simultaneously, it warrants attention, regardless of whether any single source is reporting a crisis.