POSEIDON HIGHWAY

Arrivals, time in port and the load/discharge inferred from the draught change — detected from AIS track history. An open call means the vessel is still in port (no departure observed yet).

1. Martinez

   Discharged

   → · 23 h in port· draught 8.8→8.0 m· medium confidence
2. Thenard

   Discharged

   → · 18 h in port· draught 9.8→8.8 m

Method: each call is a run of fixes inside a port’s geofence confirmed by a stop (or an AIS gap); load/discharge is the sign of the draught delta over the call. Indicative — arrivals before our AIS history began read from the first observation.

Time-in-port summed by port from the AIS-detected port-call history — the ports this vessel has spent the most time at, longest first.

1. Martinez· USA

   23 h
   1 call · 23 h avg 1 discharge
2. Thenard· USA

   18 h
   1 call · 18 h avg 1 discharge

Based on 2 completed calls observed since — open calls (no departure yet) are excluded. The distribution sharpens as AIS history accrues.