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A Harbour Seal photographed at Dun Laoghaire Marina on Dublin Bay, Ireland. Also known as the common seal, is a true seal found along temperate and Arctic marine coastlines of the Northern Hemisphere. The most widely distributed species of pinnipeds, they are found in coastal waters of the northern Atlantic and Pacific oceans, Baltic and North seas. Photo: AfloatA photograph of a Harbour Seal taken at Dun Laoghaire Marina on Dublin Bay, Ireland. Also known as the common seal, this species can be found along temperate and Arctic marine coastlines throughout the Northern Hemisphere. They are the most widely distributed species of pinnipeds and can be found in the coastal waters of the northern Atlantic and Pacific oceans, as well as the Baltic and North Seas. Photo: Afloat

Displaying items by tag: seismic survey

#MarineNotice - The latest Marine Notice from the Department of Transport, Tourism and Sport (DTTAS) advises that Polarcus DMCC is scheduled to carry out a 3D Seismic survey in the South Porcupine Basin off the southwest coast of Ireland.

The survey, similar to the 2D survey in the Porcupine Basin that continues till October, will cover 7,270 km2 and is anticipated to commence in early July with an expected duration of 121 days, subject to weather.

Co-ordinates for the proposed seismic 3D survey are included in Marine Notice No 36 of 2014, a PDF of which is available to read or download HERE.

The seismic vessel M/V Polarcus Amani (Call sign C6ZD3) is scheduled to carry out the work. The vessel will be towing an array of 10 cables, each 8.1km long, with 150m separation for a total width of 1,350m, at a depth of 14 metres.

A buoy equipped with a radar reflector and navigation strobe light will be deployed at the end of each cable.

The seismic vessel will be accompanied by support vessel M/V Bravo Sapphire (Call sign ZDJY8) and chase vessels M/V Nomad (Call sign EI5298) and M/V Ocean Guardian (Call sign EIVX). All vessels will be listening on VHF Channel 16 & 67.

The seismic vessel will be restricted in its ability to manoeuvre while carrying out the survey. All vessels, particularly those engaged in fishing, are requested to give the M/V Polarcus Amani, her towed equipment, the M/V Bravo Sapphire, the M/V Nomad and M/V Ocean Guardian a wide berth and keep a sharp lookout in the relevant areas.

Published in Marine Warning

#MarineNotice - The latest Marine Notice from the Department of Transport, Tourism and Sport (DTTAS) advises on proposals to complete the 2D seismic survey programme in the Atlantic waters of the Irish Designated Continental Shelf.

The planned start of the survey is mid-April 2014 and, weather permitting, will continue until mid-October 2014.

The programme will commence in the Porcupine Basin till early June and then progress to the Rockall Basin area.

The seismic acquisition will be carried out by the seismic vessel MV BGP Explorer (Call sign HP4919) and will be accompanied by guard/supply vessels MV Neptune 10 (Call sign ZDJQ8) and MV Neptune Mariner (Call sign ZDIW8).

The 2014 programme is proposed to complete the remaining 8,000km survey. The survey vessel BGP Explorer will tow a single solid 10km streamer and will travel at 4-5 knots with the streamer located approximately 10 metres below the water surface.

All vessels will be listening on VHF Channel 16 throughout the project.

All vessels, particularly those engaged in fishing, are requested to give the BGP Explorer, Neptune 10 and Neptune Mariner a wide berth and keep a sharp lookout in the relevant areas.

Details of the relevant survey area are included in Marine Notice No 28 of 2014, a PDF of which is available to read or download HERE.

Published in Marine Warning

#MarineWildlife - The Irish Whale and Dolphin Group (IWDG) has welcomed recent measures to protect deep-diving cetaceans from the potential effects of seismic survey noise.

The new measures have been implemented by the Petroleum Affairs Division (PAD) of the Department of Communications, Energy and Natural Resources and the National Parks and Wildlife Service (NPWS).

As a result, the environmental management plan for the 2D seismic survey of the Irish EEZ, being conducted by ENI Ireland BV in conjunction with the PAD, includes the establishment of a 'mitigation zone' along key parts of the continental shelf margin from which all seismic survey is excluded. 

The management plan was informed by two projects recently conducted by the IWDG: the recently published Atlas of the Offshore Distribution of Marine Mammals in Irish Waters (funded by the the NPWS and the Marine Institute); and the Beaked Whale Passive Acsoutic Monitoring Pilot, conducted in the Rockall Trough and funded by the PAD.

Both these projects identified areas of the Irish shelf slopes as being of importance to deep-diving cetaceans such as beaked whales, sperm whales and pilot whales.

The mitigation zones implemented during the ENI/PAD 2D survey show how collected data can directly contribute to cetacean conservation in Irish waters, according to the IWDG.

In other news, the IWDG has been carrying out its own survey in North Kerry to investigate the use of Tralee Bay and Bandon Bay by bottlenose dolphins, and assess the potential for marine wildlife tourism in the region.

Since May, Drs Simon Berrow and Joanne O'Brien have ben working with the local community in Fenit and North Kerry to survey and record dolphins and other cetaceans to build up a better understanding of how they use the bays.

The IWDG has also deployed three C-PODs across the bays to acoustically monitor the area for dolphins. 

"It has long been known that Tralee and Brandon Bays are the only site where the resident bottlenose dolphins in the Shannon Estuary occur," said Dr Berrow. "The bottlenose dolphins in the Shannon are a genetically discrete population with a relatively small population of around 120-140 individuals. The Shannon is protected for bottlenose dolphins but Tralee and Brandon Bays are not.

"Since the start of this project, which is funded by North and East Kerry Development, we have encountered bottlenose dolphins on every trip. Photo IDs have established them to be Shannon dolphins, and they have been detected acoustically on nearly 90% of days at some sites."

Celtic Mist, the IWDG's research vessel, has been joined by local boats in surveying the area and on Wednesday last (6 August) it encountered a large group of bottlenose dolphins in Brandon Bay - captured on video by local filmmaker James McCarthy:

Published in Marine Wildlife

Minister for Natural Resources, Fergus O'Dowd, has granted approval for the conducting of a major 2D seismic survey that will go a long way towards revealing the true oil and gas exploration potential of Ireland's Atlantic Margin.

"At a cost of €20 million this is is by far the largest regional seismic survey acquired in the Irish offshore, and will provide a regional grid of high-quality seismic data over Ireland's frontier basins," said Minister O'Dowd.

"The 18,000km full-fold seismic survey is also designed to infill data gaps that exist, particularly in the Southern Porcupine, Rockall and Hatton basins.

"Most importantly, the survey should go a long way towards revealing the true oil and gas potential of Ireland's frontier basins.

"The data should allow resource potential to be predicted with much greater confidence and enable both the industry and the Government to adequately evaluate future licensing opportunities."

The survey will be untertaken by ENI Ireland BV in conjunction with the Department of Communications, Energy and Natural Resources in the Atlantic waters of the Irish-designated Continental Shelf.

The survey vessel BGP Explorer is operating from Killybegs and the survey will be conducted for a duration of 145 days. Depending on weather conditions, it is possible that part of the survey will be acquired in 2014.

This is a very large undertaking and Minister O'Dowd indicated that he is pleased that ENI Ireland has agreed to provide strong technical support and operatorship for the survey, with the close involvement of his Department's technical staff. The cost of the research is being jointly funded from the Department's own research funding and funding leveraged from industry.

Published in Coastal Notes
Tagged under

#MarineNotice - The latest Marine Notice from the Department of Transport, Tourism and Sport (DTTAS) advises that ENI Ireland BV, in conjunction with DCENR/PAD, is scheduled to conduct a 2D seismic survey in the Atlantic waters of the Irish Designated Continental Shelf (as defined under Part VI of UNCLOS).

The planned start of the survey is early June and, weather permitting, will continue until mid-October 2013. The seismic acquisition will be carried out by the seismic vessel M/V BGP Explorer (Call sign HP4919) and will be accompanied at all times by guard vessel M/V South (Call sign PJKE).

This proposed survey consists of 18,000km of a full fold 2D seismic survey in offshore waters beyond the 12-nautical-mile limit, and extends into international (high seas) waters.

The M/V BGP Explorer will travel at a speed of 4-5 knots, towing a single solid 10km streamer located approximately 10m below the surface. Both work vessels will be listening on VHF Channel 16 throughout the project.

All vessels, particularly those engaged in fishing, are requested to give the M/V BGP Explorer and the M/V South a wide berth and keep a sharp lookout in the relevant areas.

For co-ordinates of the seismic survey areas see Marine Notice No 25 of 2013, a PDF of which is available to read or download HERE.

Published in Marine Warning

#MarineNotice - The busy waters of the Celtic Sea will next month see yet another seismic survey.

Marine Notice No 23 of 2013 advises that Seabird Exploration, on behalf of Spectrum Geo Limited, is scheduled to carry out a 2D seismic survey over the Celtic Basin from the beginning of June till the end of July.

The seismic acquisition will be carried out by the vessel M/V Harrier Explorer (Call sign 3EIE3), which will be accompanied at all times by guard vessel M/V Nomad (Call sign EI5298).

The proposed survey consists of 3,570km of a 2D seismic survey over the Celtic Basin. The survey vessel will travel at 4-5 knots, towing a single solid 8km streamer located some 9 metres below the surface, with a turning diameter of approximately 5km required.

Both vessels will be listening on VHF Channel 16 throughout the project. All vessels, especially those engaged in fishing, are requested to give them a wide berth and keep a sharp lookout in the relevant areas - the co-ordinates of which are outlined in the PDF available to read or download HERE.

Published in Marine Warning

#MarineNotice - Further to the recent notice of a 2D seismic survey in the Atlantic waters of the Irish continental shelf, Marine Notice No 14 of 2013 advises mariners of two full 3D seismic surveys in the Celtic Sea off the south coast.

CGG will be conducting the surveys on behalf of Fastnet Oil & Gas as part of its option on the Deep Kinsale Prospect, as previously reported on Afloat.ie.

The works are expected to commence in later this month and are expected to last around 50 days, subject to weather, beginning with the Deep Kinsale survey followed by the Mizen survey.

The seismic vessel SR/V Vantage (Call sign LMHY3) is scheduled to carry out the work. The vessel will be towing 10 cables, each 6km long with 100m separation for a total width of 900m, at a depth of seven metres. The vessel will also tow two source arrays, each made of three subarrays, each with a width of 16m and at a depth of six metres.

The seismic vessel will be accompanied by support vessel M/V Oms Resolution (Call sign HP5135) and chase vessel M/V Stormbas II (Call sign V4EM2).

In addition, as part of the Deep Kinsale survey, a second 3D seismic vessel M/V Artemis Angler (Call sign LAGU7) will assist in an undershoot of the Kinsale Alpha and Bravo platforms. The two 3D seismic vessels will sail in parallel at the same speed, one on each side of the platforms using streamers. The undershoot aspect of the acquisition is expected to last two to three days.

The seismic vessels will be restricted in their ability to manoeuvre whilst carrying out the surveys and all other vessels are requested to give these operations a wide berth. All project vessels will be listening on VHF Channel 16 throughout the project.

All vessels, particularly those engaged in fishing, are requested to give the SR/V Vantage, the M/V Artemis Angler and their towed equipment a wide berth and keep a sharp lookout in the relevant areas.

Full details of co-ordinates of the survey areas are included in Marine Notice No 14 of 2013, a PDF of which is available to read or download HERE.

Published in Marine Warning

#MarineNotice - The latest Marine Notice from the Department of Transport, Tourism and Sport advises mariners that ENI Ireland BV is scheduled to conduct a 2D seismic survey in the Atlantic waters of the Irish Designated Continental Shelf.

The planned start of the survey is mid-April 2013 and, weather permitting, will continue until mid-October 2013.

The proposed survey consists of 18,000km of a full-fold 2D seismic survey in offshore waters beyond the 12-nautical-mile limit, and extends into international (high seas) waters.

The seismic acquisition will be carried out by the seismic vessel M/V BGP Explorer (Call sign HP4919), which will be accompanied at all times by guard vessel M/V Alk Explorer (Call sign HO2639). In addition, M/V De Vrouw Marie (Call sign HP9974) will act as a supply vessel for the re-supply of materials.

M/V BGP Explorer will tow a single solid 10km streamer. The vessel will travel at 4–5 knots and the streamer will be located approximately 10 metres below the surface. All vessels will be listening on VHF Channel 16 throughout the project.

The notice requests all vessels, particularly those engaged in fishing, to give the M/V BGP Explorer, the M/V Alk Explorer and the supply vessel a wide berth, and keep a sharp lookout in the relevant areas.

Details of co-ordinates for the seismic survey are included in Marine Notice No 13 of 2013, a PDF of which is available to read or download HERE.

Notice of this latest seismic survey comes after the news that the European Commission has sought an explanation from the Government over why it has not conducted environmental impact assessments for such operations in Irish waters, which are a designated whale and dolphin sanctuary.

Meanwhile, another recent Marine Notice advises passenger ship operators of the requirements for vessels engaged in the tendering of passengers between ship and shore.

Full details on the relevant provisions of the Merchant Shipping Acts are included in Marine Notice No 12 of 2013 available HERE.

Published in Marine Warning

#SeismicSurvey - The Irish Times reports that the European Commission has demanded an explanation from the State regarding the absence of environmental impact assessments for seismic surveys off the west coast.

The action comes following a complaint lodged in Brussels by the Irish Whale and Dolphin Group (IWDG) in the wake of the recommencing of seismic surveys over the Corrib gas field last month.

As Irish waters are a designated whale and dolphin sanctuary, the IWDG's position is that the State must comply with the EU directive to conduct an environmental impact assessment when licensing such ocean-bound surveys.

The group says it received word from the EC that the issue has been raised with the Department of Energy, and reiterated the need for "strict protection" of cetaceans in Irish and all EU waters.

Last December the IWDG expressed concerns over the potential impact of a 2D seismic survey on harbour porpoises in the Kish Bank Basin in Dublin Bay.

As previously reported on Afloat.ie, Providence Resources subsequently suspended its licence to explore for oil and gas at what was termed the Dalkey Island Prospect.

The Irish Times has more on the story HERE.

Published in Coastal Notes

#MarineNotice - The latest Marine Notice from the DTTAS concerns the scheduled recommencing of a 3D seismic survey over the Corrib Gas Field by Shell E&P Ireland Ltd.

Some 40% of the survey was completed in 2012, and the remaining 60% is now set to be conducted with a planned starting date of 20 February 2013. Weather permitting, the survey should be completed in June 2013.

The seismic acquisition will comprise a four-boat operation. The M/V Ocean Pearl (Call sign C6ZW4) will lay the ocean-bottom cables on the sea floor and will collect all data records, while the M/V Malene Ostervold (Call sign LCIU3) will serve as the source vessel. In addition to these vessels, a third vessel, the M/V Vikland (Call sign C6UL5) will assist the M/V Ocean Pearl with cable laying and also act as a utility vessel. A fourth vessel, the M/T Deilginis (Call sign EISL), will act as a guard wessel.

Seismic acquisition will occur over a set of four active 12km-long solid ocean-bottom cables laid 400m apart on the sea bed at a depth of 350m. At the end of each cable is a 1km lead-in section which is attached to a standalone buoy at surface. These buoys contain a power pack as well as a recording system. Each buoy contains a radio-link with the cable-laying vessel for remote control of the buoy and for data quality control. Each buoy has a GPS receiver, so its location is well known to both seismic vessels. One by one these cables are 'rolled along' (ie picked up from the northern edge of the active spread, and redeployed at the southern edge). The M/V Malene Ostervold will be towing two seismic sources, and operating around the set of four active 12km-long cables.

The overall survey area is divided into three work areas or Contact Zones (A, B and C). A Contact Zone is defined by a 10km radius circle. Radio Navigation Warnings will be given out daily by the Irish Coast Guard, giving the co-ordinates of the centre point of the Contact Zone for that day. All vessels will be listening on VHF Channel 16 throughout the project.

Full details - including co-ordinates and maps of the survey area - are contained in Marine Notice No 07 of 2013, a PDF of which is available to read or download HERE.

Published in Marine Warning
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For all you need on the Marine Environment - covering the latest news and updates on marine science and wildlife, weather and climate, power from the sea and Ireland's coastal regions and communities - the place to be is Afloat.ie.

Coastal Notes

The Coastal Notes category covers a broad range of stories, events and developments that have an impact on Ireland's coastal regions and communities, whose lives and livelihoods are directly linked with the sea and Ireland's coastal waters.

Topics covered in Coastal Notes can be as varied as the rare finding of sea-life creatures, an historic shipwreck with secrets to tell, or even a trawler's net caught hauling much more than just fish.

Other angles focusing the attention of Coastal Notes are Ireland's maritime museums, which are of national importance to maintaining access and knowledge of our nautical heritage, and those who harvest the sea using small boats based in harbours where infrastructure and safety pose an issue, plying their trade along the rugged wild western seaboard.

Coastal Notes tells the stories that are arguably as varied as the environment they come from, and which shape people's interaction with the natural world and our relationship with the sea.

Marine Wildlife

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. And 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 our location in the North Atlantic, there appears to be no shortage of marine life to observe. From whales to dolphins, seals, sharks and other ocean animals, the Marine Wildlife category documents the most interesting accounts around our shores. And we're keen to receive your observations, your photos, links and video clips, too!

Also valuable is the unique perspective of all those who go afloat, from coastal sailing to sea angling to inshore kayaking to offshore yacht racing, as what they encounter can be of great importance to organisations such as the Irish Whale and Dolphin Group (IWDG). Thanks to their work we now know we share the seas with dozens of species who also call Ireland home. But as impressive as the list is, the experts believe there are still gaps in our knowledge. Next time you are out on the ocean waves, keep a sharp look out!

Weather

As an island in the North Atlantic, Ireland's fate is decided by Weather more so than many other European countries. When storm-force winds race across the Irish Sea, ferry and shipping services are cut off, disrupting our economy. When swollen waves crash on our shores, communities are flooded and fishermen brace for impact - both to their vessels and to their livelihoods.

Keeping abreast of the weather, therefore, is as important to leisure cruisers and fishing crews alike - for whom a small craft warning can mean the difference between life and death - as it is to the communities lining the coast, where timely weather alerts can help protect homes and lives.

Weather affects us all, and Afloat.ie will keep you informed on the hows and the whys.

Marine Science

Perhaps it's the work of the Irish research vessels RV Celtic Explorer and RV Celtic Voyager out in the Atlantic Ocean that best highlights the essential nature of Marine Science for the future growth of Ireland's emerging 'blue economy'.

From marine research to development and sustainable management, Ireland is developing a strong and well-deserved reputation as an emerging centre of excellence. Whether it's Wavebob ocean energy technology to aquaculture to weather buoys and oil exploration, the Marine Science category documents the work of Irish marine scientists and researchers and how they have secured prominent roles in many European and international marine science bodies.

Power From The Sea

The message from the experts is clear: offshore wind and wave energy is the future. And as Ireland looks towards the potential of the renewable energy sector, generating Power From The Sea will become a greater priority in the State's 'blue growth' strategy.

Developments and activities in existing and planned projects in the pipeline from the wind and wave renewables sector, and those of the energy exploration industry, point to the future of energy requirements for the whole world, not just in Ireland. And that's not to mention the supplementary industries that sea power projects can support in coastal communities.

Irish ports are already in a good position to capitalise on investments in offshore renewable energy services. And Power From The Sea can even be good for marine wildlife if done properly.

Aside from the green sector, our coastal waters also hold a wealth of oil and gas resources that numerous prospectors are hoping to exploit, even if people in coastal and island areas are as yet unsure of the potential benefits or pitfalls for their communities.

Changing Ocean Climate

Our ocean and climate are inextricably linked - the ocean plays a crucial role in the global climate system in a number of ways. These include absorbing excess heat from the atmosphere and absorbing 30 per cent of the carbon dioxide added to the atmosphere by human activity. But our marine ecosystems are coming under increasing pressure due to climate change.

The Marine Institute, with its national and international partners, works to observe and understand how our ocean is changing and analyses, models and projects the impacts of our changing oceans. Advice and forecasting projections of our changing oceans and climate are essential to create effective policies and management decisions to safeguard our ocean.

Dr Paul Connolly, CEO of the Marine Institute, said, “Our ocean is fundamental to life on earth and affects so many facets of our everyday activities. One of the greatest challenges we face as a society is that of our changing climate. The strong international collaborations that the Marine Institute has built up over decades facilitates a shared focusing on our changing ocean climate and developing new and enhanced ways of monitoring it and tracking changes over time.

“Our knowledge and services help us to observe these patterns of change and identify the steps to safeguard our marine ecosystems for future generations.”

The Marine Institute’s annual ocean climate research survey, which has been running since 2004, facilitates long term monitoring of the deep water environment to the west of Ireland. This repeat survey, which takes place on board RV Celtic Explorer, enables scientists to establish baseline oceanic conditions in Irish waters that can be used as a benchmark for future changes.

Scientists collect data on temperature, salinity, water currents, oxygen and carbon dioxide in the Atlantic Ocean. This high quality oceanographic data contributes to the Atlantic Ocean Observing System. Physical oceanographic data from the survey is submitted to the International Council for the Exploration of the Seas (ICES) and, in addition, the survey contributes to national research such as the VOCAB ocean acidification and biogeochemistry project, the ‘Clean Atlantic’ project on marine litter and the A4 marine climate change project.

Dr Caroline Cusack, who co-ordinates scientific activities on board the RV Celtic Explorer for the annual survey, said, “The generation of long-term series to monitor ocean climate is vital to allow us understand the likely impact of future changes in ocean climate on ecosystems and other marine resources.”

Other activities during the survey in 2019 included the deployment of oceanographic gliders, two Argo floats (Ireland’s contribution to EuroArgo) and four surface drifters (Interreg Atlantic Area Clean Atlantic project). The new Argo floats have the capacity to measure dissolved ocean and biogeochemical parameters from the ocean surface down to a depth of 2,000 metres continuously for up to four years, providing important information as to the health of our oceans.

During the 2019 survey, the RV Celtic Explorer retrieved a string of oceanographic sensors from the deep ocean at an adjacent subsurface moored station and deployed a replacement M6 weather buoy, as part of the Irish Marine Data Buoy Observation Network (IMDBON).

Funded by the Department of Agriculture, Food and the Marine, the IMDBON is managed by the Marine Institute in collaboration with Met Éireann and is designed to improve weather forecasts and safety at sea around Ireland. The data buoys have instruments which collect weather and ocean data including wind speed and direction, pressure, air and sea surface temperature and wave statistics. This data provides vital information for weather forecasts, shipping bulletins, gale and swell warnings as well as data for general public information and research.

“It is only in the last 20 years, meteorologists and climatologists have really began to understood the pivotal role the ocean plays in determining our climate and weather,” said Evelyn Cusack, Head of Forecasting at Met Éireann. “The real-time information provided by the Irish data buoy network is particularly important for our mariners and rescue services. The M6 data buoy in the Atlantic provides vital information on swell waves generated by Atlantic storms. Even though the weather and winds may be calm around our shores, there could be some very high swells coming in from Atlantic storms.”