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Acoustic Doppler Current Profilers (ADCPs) – Deployment in Dungarvan, Co. WaterfordMarine Notice No. 09 of 2019
The Department of Transport, Tourism and Sport has been advised that TechWorks Marine Ltd are planning on deploying 4 Trawl-resistant bottom mounted Acoustic Doppler Current Profilers (ADCPs) frames in Dungarvan, Co. Waterford, at locations provided below and also shown on the accompanying Admiralty Chart (please refer to Appendix A).
TechWorks Marine Ltd intend to deploy the ADCPs on the next neap tide between the 22nd and 26th April 2019 depending on the weather. If the deployment is delayed due to the weather, the deployment will be carried out on the next viable tide and weather window.
The frames will be on the seafloor for a minimum period of one calendar month and a maximum period of two months (weather permitting). The ADCPs will be measuring currents through the water column at each location over the deployment. This data will be used to validate a Hydrodynamic model of the area being developed for Irish Water.
The deployment locations are (degrees, minutes, seconds) WGS84 as follows:
Each Frame will have the following equipment:
1 x ADCP Sensor (Waves and Currents) 1 x Acoustic Release 1 x Rigid Recovery Buoy 1 x Acoustic Pinger 1 x Grapple line
The frames are approx. 1m x 1m and will remain on the seafloor for a period of up to 30 days after which the frame will be retrieved by the acoustic release by the retrieval team of a pop-up buoy allowing for its recovery or by a grapple line recovery method. There will be no surface marker during the extent of deployment so vessel traffic will not need to avoid the area but should be aware of its presence.
For further information please contact: Charlotte O’Kelly (Managing Director) TechWorks Marine Ltd. Pottery Enterprise Zone, Pottery Road, Dun Laoghaire, Ireland Tel: +353 1 2365990; Fax: +353 1 2365992 E-Mail: office@techworks.ie; Web: www.techworks.ie All mariners are reminded of their responsibilities under the International Collision Regulations and are reminded of Marine Notice No. 17 of 2007, which gives general advice in relation to the activities of vessels engaged in survey work for hydrographic, seismic, fishing research and underwater operations.
The International Regulations for Prevention of Collisions at Sea (COLREGS) are implemented in Irish law by the Merchant Shipping (Collision Regulations) (Ships and Water Craft on the Water) Order 2012 [S.I. No. 507 of 2012], and the Signals of Distress (Ships) Rules 2012 [S.I. No.170 of 2012]. See Marine Notice No. 06 of 2013. These Statutory Instruments may be purchased by mail order from Government Publications, Office of Public Works, 52 St. Stephen’s Green, Dublin 2. Tel: (01) 6476834/1890-213434. They are also available online at: www.irishstatutebook.ie.
Marine Notices are issued purely for maritime safety and navigation reasons and should not be construed as conferring rights or granting permissions.
Irish Maritime Administration, Department of Transport, Tourism and Sport, Leeson Lane, Dublin 2, D02 TR60, Ireland.
Appendix A: Admiralty Chart of Deployment Locations
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