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Displaying items by tag: Virtual Aid to Navigation

#lighthouses – The Commissioners of Irish Lights (CIL) has the first permanent Virtual Aid to Navigation charted in Irish Waters on the 5th June 2014. The port hand Virtual Aid to Navigation was established at the entrance to Belfast Lough on the North East Coast of Ireland. This was in response to a newly reported shoal depth of 8.0 metres at the Rigg Bank.

CIL explored various options to ensure the shoal depth was addressed correctly. One option was to place a buoy to mark the pinnacle depth. However, after completing a Risk Assessment and extensive Automatic Identification System (AIS) analysis, it was clear the buoy would introduce a new danger in the relatively deep water. As a result, the port hand Virtual Aid to Navigation was chosen and deployed approximately half a nautical mile east of the position of the new pinnacle depth on the 20th November 2013.

Deirdre Lane, Navigation Policy Officer in CIL commented "It was found that deep draft vessels which need to have the pinnacle depth highlighted the most, are those that have the capability for a Virtual Aid to Navigation to be displayed on their on-board systems. In this unique set of circumstances, it was clear the Virtual Aid to Navigation was the best option".

One of the functionalities of AIS is that a land based AIS station can be used to transmit the position of an AIS Aid to Navigation that does not physically exist in the water. It is represented as a digital symbol on the ships Radar, Electronic Display and Information System (ECDIS) or Integrated Navigation System.

In order to bring the Virtual Aid to Navigation to the Mariners attention, it was officially mapped on navigational charts by the UKHO at CIL's request on 5th June 2014. As a result, CIL is responsible for the first permanent charted Virtual AIS Aid to Navigation in Irish waters.

Published in Lighthouses

Marine Wildlife Around Ireland One of the greatest memories of any day spent boating around the Irish coast is an encounter with marine wildlife.  It's a thrill for young and old to witness seabirds, seals, dolphins and whales right there in their own habitat. As boaters fortunate enough to have experienced it will testify even spotting a distant dorsal fin can be the highlight of any day afloat.  Was that a porpoise? Was it a whale? No matter how brief the glimpse it's a privilege to share the seas with Irish marine wildlife.

Thanks to the location of our beautiful little island, perched in the North Atlantic Ocean there appears to be no shortage of marine life to observe.

From whales to dolphins, seals, sharks and other ocean animals this page documents the most interesting accounts of marine wildlife around our shores. We're keen to receive your observations, your photos, links and youtube clips.

Boaters have a unique perspective and all those who go afloat, from inshore kayaking to offshore yacht racing that what they encounter can be of real value to specialist organisations such as the Irish Whale and Dolphin Group (IWDG) who compile a list of sightings and strandings. The IWDG knowledge base has increased over the past 21 years thanks in part at least to the observations of sailors, anglers, kayakers and boaters.

Thanks to the IWDG work we now know we share the seas with dozens of species who also call Ireland home. Here's the current list: Atlantic white-sided dolphin, beluga whale, blue whale, bottlenose dolphin, common dolphin, Cuvier's beaked whale, false killer whale, fin whale, Gervais' beaked whale, harbour porpoise, humpback whale, killer whale, minke whale, northern bottlenose whale, northern right whale, pilot whale, pygmy sperm whale, Risso's dolphin, sei whale, Sowerby's beaked whale, sperm whale, striped dolphin, True's beaked whale and white-beaked dolphin.

But as impressive as the species list is the IWDG believe there are still gaps in our knowledge. Next time you are out on the ocean waves keep a sharp look out!