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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

About Currachs

A currach is a type of boat unique to the west coasts of Ireland and Scotland. Traditionally, currachs have a wooden frame over which animal skins or hides are stretched. These days, the wooden frame is more likely to be covered in canvas, which is then painted with tar to make it waterproof.

"Naomhóg" is the name given to the type of currach which used by coastal communities in Cork and Kerry. Currachs differ from each other from region to region. Naomhógs are slightly longer than the currachs used in the West of Ireland.
 
Some believe that currachs first came to the Dingle Peninsula in the early 19th century. They say this type of boat was introduced from Clare, where currachs are known as "canoes". 

Currachs are a unique type of boat that can be found on the west coasts of Ireland and Scotland. These boats are traditionally constructed using a wooden frame over which animal skins or hides are stretched. While this practice is still observed by some, many modern currachs now feature a canvas covering which is painted with tar to make it waterproof.

In coastal communities located in the Cork and Kerry regions, a specific type of currach is used which is known as a Naomhóg. Naomhógs are slightly longer than other types of currachs used in the West of Ireland. It is believed that currachs were first introduced to the Dingle Peninsula in the early 19th century, having been brought over from Clare where they are known as "canoes".

Despite the fact that currachs have been in use for centuries, the different regions in which they are used have developed their own unique variations. As such, currachs can differ from one another significantly depending on their geographic location. Nonetheless, these boats remain an integral part of coastal communities, serving as a reminder of our shared maritime heritage.