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Displaying items by tag: Seismometers

#MarineNotice - The latest Marine Notice from the Department of Transport, Tourism and Sport (DTTAS) advises that marine scientists from the Dublin Institute of Advanced Studies (DIAS) are deploying a tsunameter close to the new location of the M4 weather buoy off the Donegal coast.

In addition to the tsunameter, they will also deploy a sub-surface buoy with an acoustic Doppler current profiler (ADCP) mounted on it, as well as pressure sensors clamped to a moored string to measure pressure variations at depth. This system will be deployed in proximity to the tsunameter location but not too close to avoid tangling.

The tsunameter and system used for the ADCP and the pressure string sensors is scheduled to be be deployed imminently from the RV Celtic Voyager (Callsign: EIQN) at latitude 54°59.892 N, longitude 009°58.14 W, at a depth of 119m adjacent to M4 weather buoy.

As this is sensitive scientific equipment, it is requested that fisherman and marine operators engaged in such activities as bottom trawling or laying of static gear avoid the locations concerned to avoid damaging the equipment or damaging fishing gear.

Published in Marine Warning

#MarineNotice - The first Marine Notice of 2016 from the Department of Transport, Tourism and Sport (DTTAS) advises that the Dublin Institute for Advanced Studies (DIAS) is deploying 10 Ocean Bottom Seismometers for a period of seven months off the North West Coast of Ireland.

The OBS units will be deployed from the Marine Institute vessel RV Celtic Voyager between 13 and 22 January. They will be free-falled to the bottom and anchored by a 400kg clump weight.

The OBS units in shallow water will have a yellow surface marker buoy and a yellow flashing light with the following characteristics: FL (5) Y 20s and with a range of 2 nautical miles.

Station 1 will be located close to the M4 Weather Buoy which is the subject of a prior marine notice (No 11 of 2007).

As this is sensitive scientific equipment, it is requested that fisherman and marine operators engaged in such activities as bottom trawling or laying of static gear avoid the locations concerned to avoid damaging the equipment or damaging fishing gear.

Full co-ordinates of the OBS locations are included in Marine Notice No 1 of 2016, a PDF of which is available to read or download HERE.

Published in Marine Warning

The 2024 Vendée Globe Race

A record-sized fleet of 44 skippers are aiming for the tenth edition of the Vendée Globe: the 24,296 nautical miles solo non-stop round-the-world race from Les Sables d’Olonne in France, on Sunday, November 10 2024 and will be expected back in mid-January 2025.

Vendée Globe Race FAQs

Six women (Alexia Barrier, Clarisse Cremer, Isabelle Joschke, Sam Davies, Miranda Merron, Pip Hare).

Nine nations (France, Germany, Japan, Finland, Spain, Switzerland, Australia, and Great Britain)

After much speculation following Galway man Enda O’Coineen’s 2016 race debut for Ireland, there were as many as four campaigns proposed at one point, but unfortunately, none have reached the start line.

The Vendée Globe is a sailing race round the world, solo, non-stop and without assistance. It takes place every four years and it is regarded as the Everest of sailing. The event followed in the wake of the Golden Globe which had initiated the first circumnavigation of this type via the three capes (Good Hope, Leeuwin and Horn) in 1968.

The record to beat is Armel Le Cléac’h 74 days 3h 35 minutes 46s set in 2017. Some pundits are saying the boats could beat a sub-60 day time.

The number of theoretical miles to cover is 24,296 miles (45,000 km).

The IMOCA 60 ("Open 60"), is a development class monohull sailing yacht run by the International Monohull Open Class Association (IMOCA). The class pinnacle events are single or two-person ocean races, such as the Route du Rhum and the Vendée Globe.

Zero past winners are competing but two podiums 2017: Alex Thomson second, Jérémie Beyou third. It is also the fifth participation for Jean Le Cam and Alex Thomson, fourth for Arnaud Boissières and Jérémie Beyou.

The youngest on this ninth edition of the race is Alan Roura, 27 years old.

The oldest on this ninth edition is Jean Le Cam, 61 years old.

Over half the fleet are debutantes, totalling 18 first-timers.

The start procedure begins 8 minutes before the gun fires with the warning signal. At 4 minutes before, for the preparatory signal, the skipper must be alone on board, follow the countdown and take the line at the start signal at 13:02hrs local time. If an IMOCA crosses the line too early, it incurs a penalty of 5 hours which they will have to complete on the course before the latitude 38 ° 40 N (just north of Lisbon latitude). For safety reasons, there is no opportunity to turn back and recross the line. A competitor who has not crossed the starting line 60 minutes after the signal will be considered as not starting. They will have to wait until a time indicated by the race committee to start again. No departure will be given after November 18, 2020, at 1:02 p.m when the line closes.

The first boat could be home in sixty days. Expect the leaders from January 7th 2021 but to beat the 2017 race record they need to finish by January 19 2021.

Today, building a brand new IMOCA generally costs between 4.2 and €4.7million, without the sails but second-hand boats that are in short supply can be got for around €1m.

©Afloat 2020

Vendee Globe 2024 Key Figures

  • 10th edition
  • Six women (vs six in 2020)
  • 16 international skippers (vs 12 in 2020)
  • 11 nationalities represented: France, United Kingdom, Switzerland, Germany, Italy, Belgium, Hungary, Japan, China, USA, New Zealand (vs 9 in 2020)
  • 18 rookies (vs 20 in 2020)
  • 30 causes supported
  • 14 new IMOCAs (vs 9 in 2020)
  • Two 'handisport' skippers

At A Glance - Vendee Globe 2024

The 10th edition will leave from Les Sables d’Olonne on November 10, 2024

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