Maritime and AIS vessel data
Ship-tracking data has become a window into global trade, commodities and supply chains. This guide covers maritime and AIS data, what it reveals, and how to source and use it.
What AIS data is
The Automatic Identification System (AIS) broadcasts vessel position, identity and movement. Collected from coastal and satellite receivers, it provides near-global visibility of ship traffic, the foundation of maritime analytics.
What it reveals
Derived from AIS and related sources: vessel movements and routes, port calls and dwell times, congestion, and inferred trade and commodity flows. Combined with vessel registries, it links movements to ownership and cargo type.
Common use cases
Trade and commodity-flow analysis, supply-chain visibility and port planning, freight and shipping markets, sanctions and risk monitoring, and environmental and emissions analysis.
Sourcing considerations
Coverage depends on terrestrial and satellite reception, and data needs cleaning, gaps, spoofing and identity issues are real. Deriving meaning (port calls, flows) requires processing on top of raw positions. Licensing varies between providers.
Delivery and cadence
Monitoring wants near-real-time feeds via API; analysis uses historical batches. AIS is geospatial and temporal, so consistent referencing matters.
In a managed model
A managed partner can source AIS and registry data, derive the events and flows you need, and deliver them in your format.
From raw AIS to events
Raw AIS is a stream of positions and identifiers; its value emerges once it is processed into events, port calls, dwell times, congestion, voyage legs, and joined with vessel registries to link movements to ownership and cargo type. That derivation, plus cleaning for gaps, spoofing and identity errors, is where the analytical work sits. Coverage depends on terrestrial and satellite reception, so understand the source before relying on completeness.
Combining for trade and risk insight
The strongest maritime insight comes from fusing AIS with port schedules, registries and trade data to infer commodity and trade flows or flag sanctions and risk. Provenance and licensing vary by provider; near-real-time feeds suit monitoring, while historical archives support flow analysis and backtesting.
- AIS broadcasts vessel position and identity, giving near-global ship visibility.
- Derived products (port calls, flows) require processing on raw positions.
- Watch coverage gaps, spoofing and identity issues.
- Use near-real-time for monitoring; batches for analysis.
Sources & further reading
- IMO: AIS and maritime data standards.
- EMSA: European maritime data services.
- UNCTAD: maritime trade statistics.
- Commercial AIS providers and methodologies.
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