RP HELSINKI

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. Doel

   Loaded

   → · 15 h in port· draught 1.6→2.7 m· low confidence
2. Antwerp

   no cargo change

   → · 43 h in port· draught 1.6→1.6 m
3. Terneuzen

   no cargo change

   → · 2 h in port· draught 1.6→1.6 m
4. Antwerp

   no cargo change

   → · 4 h in port· draught 3.1→3.1 m· medium confidence
5. Doel

   no cargo change

   → · 3 h in port· draught 3.1→3.1 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. Antwerp· Belgium

   47 h
   2 calls · 24 h avg
2. Doel· Belgium

   18 h
   2 calls · 9 h avg 1 load
3. Terneuzen· Netherlands

   2 h
   1 call · 2 h avg

Based on 5 completed calls observed since — open calls (no departure yet) are excluded. The distribution sharpens as AIS history accrues.