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Ocean Met Offshore Wind Measurement

Ocean Met is a deeper water meteorological lidar system based on a taught moored buoy system that can be easily deployed and recovered. It is designed for low cost series production using pre fabrication assembly line methods. Ocean Met is developed in partnership with SeaRoc Ltd. 

    Low cost

    Easily recovered and re-deployed

    Full range of instrumentation to support Lidar measurements

    Long Service life

    Leasing options available

    No legacy impact

Ocean Resource adopted a problem-led approach to firstly create a holistically designed structure from top to base specifically to overcome the fatigue and corrosion issues plaguing the meteorological masts currently employed offshore by the wind industry. Ocean Met has a design life of 25 years. 

Secondly, Ocean Resource  has designed from the start on the basis that flexibility of location and the ability to easily and cheaply relocate meteorological masts is paramount to wind farm developers to ensure that they can maximise the design, density and size of any potential wind farm zone.

Thirdly, Ocean Resource acknowledged that Ocean Met must be easily deployable and recoverable with nothing more than standard offshore tugs in order to offer wind farm developers both the flexibility of very short lead times for deployment and relocation and remove the current cost impediments of doing so.

Utilising current budgets planned for a single mast, wind farm developers could now alternatively employ multiple Ocean Mets within the development zone. Ocean Met also opens up the possibility of multipoint testing to either expand existing developments or to maximise the density and size of future planned sites. 

Ocean Met Lidar
Component & Installation Overview


Ocean Met uses a concrete and steel cellular Gravity Buoyant System (GBS) foundation.

The gravity base is a rectangular, cellular reinforced concrete structure, comprising several separate ballast compartments.

The foundation is designed to sit on the sea bed and to resist the lateral forces imposed upon it by its buoy, tower and tethers.

A steel skirt can be fitted to increase sliding resistance of the base against the sea bed.


The Ocean Met buoy is attached to the gravity base through tether cables anchored into the foundation through force dissipating outriggers.

Each tether is a spiral steel bridge strand wire, galvanised and sheathed in high density polypropylene for corrosion protection. The exterior of each tether has a silicon based antifouling coating to reduce marine growth.

On the buoy these tether cables are attached through fabricated universal joints with low friction bearing surfaces to outriggers positioned below the ocean surface. 


Ocean Met is designed to be much simpler and cheaper to instal than traditional offshore masts, with over 80% of the commissioning work taking place onshore.

The instrument booms and fixings for solar panels and Wind Turbine Generators (WTG) power systems are all then set up and pre-wired before being sealed and loaded for transport.

The whole system is either launched on a slipway or simply floated off using the tide.

For more details on the 2-stage installation process, see below.

Even in the event of substantial damage to the buoy through collision etc, it should not sink and the gravity base will remain intact. Using a standard tug, the whole structure can be towed back to shore for repair and refurbishment. 


Ocean Met is designed to need very little servicing and maintenance. Solar panels are deployed which charge a substantial battery pack, which in turn powers the data collection and transmitting equipment.

All systems on Ocean Met can be monitored and interrogated from onshore allowing operators to be forewarned of any defects as soon as they start to occur. This should ensure that potential problems can be rectified prior to any full equipment failure.

In the event that some of the data gathering equipment does fail, the mast can be easily boarded from a boat and climbed. Equipment can either be hauled up for replacement, or if preferred for major work the mast can be lowered.


Two stage installation

STAGE 1: The Gravity base is launched and towed out using two basic offshore tugs. Once on location, the floating Gravity Buoyant Structure (GBS) is boarded and the ballasting valves which are connected through hoses to the pumps are opened. As the GBS fills with pumped sea water it begins to sink. Both tugs pay out their lines to control the decent and to ensure the structure is correctly positioned on the sea bed. The tether cables are held on the surface attached to a locator buoy.

STAGE 2: The buoyant hull is then towed into position and the tethers are retrieved. A separate cable is used to draw the buoyant structure under the surface so the tethers can be connected in an operation lasting only a few hours. The tower is then safe and can be left.

From now on all assembly work is carried out from the work platform, which is accessed by the boat landing.

You can watch a typical installation sequence video by clicking the link.

This rapid deployment process using standard tugs needs only a twelve hour weather window for completion, considerably raising efficiency and slashing installation costs by some 90%.

Once installed, the systems are then checked and the buoy left unmanned.

The removal and re-deployment process is just as quick and simple but works in reverse. 

Beacon Business Park
Norman Way
NP26 5PY

15th Floor, West Block 
Wisma Selangor Dredging
142C, Jalan Ampang 
50450 Kuala Lumpur




Head Office Phone: +44 (0) 1291 40 80 88

Malaysia Office Phone: +60 13 439 3114

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