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Displaying items by tag: Seabedmapping

Amongst the festival tallships lining Waterford quays, the RV Keary, a marine research survey vessel that mapped the estuary in advance of the tall ships arrival, will too be open to the public, writes Jehan Ashmore.
Work to map the navigational channel of Waterford Harbour's estuary was completed last month by the catamaran hulled craft that belongs to the Geological Survey of Ireland (GSI). Her smaller fleetmate the 7.5m RIB RV Geo carried-out work in the shallower areas along the river banks. For images of the seabed survey click HERE. The survey which had started in April was a joint research programme between (GSI) and the Marine Institute (MI).

This was the RV Keary's first INFOMAR survey leg of 2011 and it was also the first time that both vessels have worked in tandem. The mapping of the estuary was from an area just west of the city's Rice Bridge to the open sea at the mouth of Waterford Harbour.

The estuary was mapped before in 2007 using the Marine Institutes larger vessel the RV Celtic Voyager, which covered the harbour approaches from the 10m contour to greater depth offshore. Both RV Keary and RV Geo overlapped their coverage with this previous data, producing a comprehensive and seamless seabed map of the area.

RV Keary is constructed of marine grade aluminium and was custom built in 2008 for the (GSI) by Veecraft Marine of Capetown, South Africa.
The 15m craft with a draft of just 2m is equipped with an extensive range of highly sophisticated technology. She has an open working area at the aft-deck to conduct operations and is licensed to carry up to 12 personnel. For further vessel characteristics click HERE.

The 34-tonne craft made her 7,000 mile delivery voyage from the African continent to Europe. She was firstly transported on the deck of a cargoship to Rotterdam. After unloading at the Dutch port the 22-knot capable craft set off with several calls along the UK south coast to include loading bunkers before finally reaching Dun Laoghaire, from where she entered service in April 2009.

Published in Marine Science

Dublin Bay Sailing Club (DBSC) is one of Europe's biggest yacht racing clubs. It has almost sixteen hundred elected members. It presents more than 100 perpetual trophies each season some dating back to 1884. It provides weekly racing for upwards of 360 yachts, ranging from ocean-going forty footers to small dinghies for juniors.

Undaunted by austerity and encircling gloom, Dublin Bay Sailing Club (DBSC), supported by an institutional memory of one hundred and twenty-nine years of racing and having survived two world wars, a civil war and not to mention the nineteen-thirties depression, it continues to present its racing programme year after year as a cherished Dublin sporting institution.

The DBSC formula that, over the years, has worked very well for Dun Laoghaire sailors. As ever DBSC start racing at the end of April and finish at the end of September. The current commodore is Eddie Totterdell of the National Yacht Club.

The character of racing remains broadly the same in recent times, with starts and finishes at Club's two committee boats, one of them DBSC's new flagship, the Freebird. The latter will also service dinghy racing on Tuesdays and Saturdays. Having more in the way of creature comfort than the John T. Biggs, it has enabled the dinghy sub-committee to attract a regular team to manage its races, very much as happened in the case of MacLir and more recently with the Spirit of the Irish. The expectation is that this will raise the quality of dinghy race management, which, operating as it did on a class quota system, had tended to suffer from a lack of continuity.