CATRIONA

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. Lochranza, Isle of Arran

   op. unknown

   In port since
2. Lochranza, Isle of Arran

   no cargo change

   → · 27 h in port· draught 1.8→1.8 m
3. Lochranza, Isle of Arran

   op. unknown

   In port since · low confidence
4. Lochranza, Isle of Arran

   op. unknown

   In port since · low confidence
5. Port Glasgow

   no cargo change

   → · 3.5 days in port· draught 1.7→1.7 m
6. Lochranza, Isle of Arran

   no cargo change

   → · 15 h in port· draught 1.7→1.7 m· low confidence
7. Lochranza, Isle of Arran

   op. unknown

   → · 4.9 days in port· low confidence
8. Lochranza, Isle of Arran

   op. unknown

   In port since · low confidence
9. Lochranza, Isle of Arran

   op. unknown

   In port since · low confidence

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. Lochranza, Isle of Arran· United Kingdom

   6.6 days
   3 calls · 2.2 days avg
2. Port Glasgow· United Kingdom

   3.5 days
   1 call · 3.5 days avg

Based on 4 completed calls observed since — open calls (no departure yet) are excluded. The distribution sharpens as AIS history accrues.