Complete NTM 73/20

Mariners are advised that weather permitting on 30 November 2020, Partrac Ltd are to deploy a seabed mooring frame containing an acoustic measuring device at Gourock Ferry Terminal, Gourock Bay, Firth of Clyde. Its purpose is to measure the water column current profile and surface waves.

The seabed frame is 1.5 x 1.5m and stands 0.8m proud of the seabed. It will be established at the undernoted location and be marked by a lit 1.2m diameter special mark buoy.


Name M1 Buoy
Location Description  Firth of Clyde. Gourock Bay.
Latitude 56º 57.932′ North (WGS-84 datum)
Longitude 004º 48.923′ West (WGS-84 datum)
Character of Light Fl (5) Y 20s
Range 2 nautical miles
Colour/Shape Yellow Pillar
Topmark Yellow X
Comments Radar reflector fitted


The device is to be deployed by the workboat vessel Mary M, operated by GSS Marine Ltd and it will be established in this position for 12 months.

During this time, it is requested where possible passing vessels maintain a 200m distance from the surface marker buoy.

Further details can be obtained by using the contact details below.

Ross Flatman / +44 (0)792 793 999 (Quote ref P1994).

Dan Pitt / +44 (0)7503959958 (Quote ref P1994)

Alternatively, please call Partrac Ltd office on +44 (0) 141 266 0212.

Issued on behalf of the Harbour Master

Caledonian Maritime Assets Limited

Categories: Piers and harbours, Uncategorized @gd