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Displaying items by tag: Wrecks

Dutch Inspectorate and Cultural Heritage Agency award contract to the Maritime Observatory to continue monitoring important underwater heritage sites

The Information and Heritage Inspectorate and Cultural Heritage Agency of the Netherlands (RCE), both part of the Ministry of Education, Culture and Science, have contracted the Maritime Observatory to monitor important underwater maritime heritage sites in the Waddenzee or Dutch territorial North Sea.

The Maritime Observatory (MO), a British organisation, uses satellite technology, artificial intelligence and local intelligence sources to monitor twelve shipwreck sites, ranging from the 15th to the 20th century in Dutch territorial waters. The project follows on from a previous wreck monitoring programme undertaken within the International Programme for Maritime Heritage of the RCE and executed by the MO in 2019, focusing on seven Dutch shipwrecks located in domestic waters and overseas in Belgium, UK, and Malaysia. By collaborating with the MO, the Dutch government is intent on preventing the looting of important sites for their artefacts and metals and for the monitoring of any wreck that could potentially suffer an environmental issue with fuel oil or ordnance due to human activity.

Monitoring underwater heritage sites at risk

The Maritime Observatory (MO) has harnessed the growing capabilities of the commercial satellite sector to create a hub for monitoring the maritime and marine domain. Its purpose is to actively monitor and share information among relevant stakeholders, including government agencies, to protect wreck sites and deter illegal activity at sea. By combining archaeological expertise and specialist knowledge with advanced technologies, the MO enables effective monitoring, enforcement and compliance for the protection of maritime heritage sites and disseminates relevant information to the appropriate authorities.

A diver monitors a wreck site Photo: Michael PittsA diver monitors a wreck site Photo: Michael Pitts

The aim of the project is to keep an eye on the wrecks and better understand which sites are at risk and how they are threatened. This is vital to enable the Inspectorate, the RCE and other agencies and authorities to take timely measures and collaborate on the protection of these vulnerable heritage sites.

The Maritime Observatory is a partnership between the Maritime Archaeology Sea Trust (MAST) and OceanMind. MAST the global experts in underwater maritime heritage joined forces with OceanMind, a not-for-profit organisation which harnesses the growing capabilities of the space sector to provide monitoring of human activity on the oceans.

Jessica Berry, MAST CEO, said: “Maritime heritage and the marine environment must not be studied in isolation from wider issues of maritime security. This exciting project will continue to help the Dutch Inspectorate be better able to understand human activity at these sites and take the right enforcement actions where necessary”

Martijn Manders, maritime archaeologist at RCE said “we are pleased to have been able to set up the collaboration with the Inspectorate in the protection of the underwater cultural heritage, evolving from the work done between 2019 and 2021 with the Maritime Observatory. It is important to continue to provide actionable intelligence on human activity at these culturally important undersea sites, in order for us to protect this heritage.”

Published in Diving
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A team of scientists led by Dr Ruth Plets, School of Environmental Sciences at Ulster University, aboard the Marine Institute's Celtic Voyager research vessel has revealed detailed images of World War I shipwrecks in the Irish Sea.

The team set out to capture the highest resolution acoustic data possible of WWI shipwrecks lost in the Irish Sea, using a new multi-beam system (EM2040) on board the RV Celtic Voyager to get the best data ever acquired over these
wrecks.

"We were able to capture the most detailed images of the entirety of the wrecks ever. Some of the wrecks, which are too deep to be dived on, have not been seen in 100 years. So this is the first time we can examine what has happened to them, during sinking and in the intervening 100 years, and try to predict their future preservation state," explained Dr Plets.

Among the shipwrecks surveyed were the SS Chirripo, which sank in 1917 off Black Head (Co. Antrim) after she struck a mine; the SS Polwell, which was torpedoed in 1918 northeast of Lambay Island; and the RMS Leinster, which sank in 1918 after being torpedoed off Howth Head when over 500 people lost their lives – this was the greatest single loss in the Irish Sea.

Dr Peter Heffernan, CEO Marine Institute welcomed the achievements of the survey, supported by the competitive ship-time programme: "The multidisciplinary team is making an important contribution to understanding and protecting our maritime heritage and to our ability to manage our marine resource wisely".

Explaining how the survey was carried out Dr Plets said, "We moved away from traditional survey strategies by slowing the vessel right down to allow us to get many more data points over the wreck, with millions of sounding per
wreck."

"The detail is amazing as we can see things such as handrails, masts, the hawse pipe (where the anchor was stored) and hatches. Some of the vessels have split into sections, and we can even see details of the internal structure. With the visibility conditions in the Irish Sea, no diver or underwater camera could ever get such a great overview of these wrecks."

As well as acoustic imaging, the team collected samples from around the wreck to see what its potential impact is on the seabed ecology. Sediment samples were also taken for chemical analysis to determine if these wrecks cause a
concern for pollution.

The project is carried out to coincide with WWI centenary commemorations, noted Dr Plets, "We often forget the battles that were fought in our seas; more emphasis is put on the battles that went on in the trenches. However, at least 2,000 Irishmen lost their lives at sea, but unlike on land, there is no tangible monument or place to commemorate because of the location on the bottom of the sea,"

"In the Republic of Ireland there is a blanket protection of all wrecks older than 100 years, so all these will become protected over the next few years.

To manage and protect these sites for future generations, we need to know their current preservation state and understand the processes that are affecting the sites," Dr Plets further stated.

The next step for the team is to use the data collected to create 3D models which can be used for archaeological research, heritage management and dissemination of these otherwise inaccessible sites to the wider public.

"There is so much data, it will take us many months if not years, to work it all up. Some of the wrecks are in a very dynamic environment and we are planning to survey these vessels again next year to see if there is a change, especially after the winter storms. That will give the heritage managers a better idea if any intervention measures need to be taken to protect them," said Dr Plets.

"These data could well signal a new era in the field of maritime archaeology. We hope it will inspire a new generation of marine scientists, archaeologists and historians to become involved. Above all, we want to make the general public, young and old, aware of the presence of such wrecks, often located only miles off their local beach."

The research survey was supported by the Marine Institute, through its Ship-Time Programme, funded under the Marine Research Programme by the Irish Government.

The diverse team included maritime archaeologists Rory McNeary, from the Northern Ireland Department of the Environment, and Kieran Westley, from the University of Southampton; geologists Rory Quinn and Ruth Plets, both Ulster University; biologists Annika Clements, from Agri-Food and Biosciences Institute, and Chris McGonigle, from Ulster University; Ulster University Marine Science student, Mekayla Dale; as well as hydrographer Fabio Sacchetti from the Marine Institute who works on Ireland's national seabed mapping programme, INFOMAR, run jointly with the Geological Survey of Ireland.

Published in Marine Science
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The Heritage Council of Ireland is to face a 47% cut in funding following the budget's announcement on Tuesday. The large-scale reduction in funding the statutory body will decimate the heritage sector and threatens the closure of many small enterprises that are dependent on it. The cut is on top of a 30% fall in funds introduced during this year.

The council is charged with identifying, protecting, preserving and enhancing Ireland's national heritage which also includes seascapes, wrecks and the inland waterways.

"We are extremely concerned about the disproportionate nature of the cuts to the heritage sector. While the heritage sector recognises that it must share the burden of the cuts required to tackle the country's economic crisis, the cuts announced last Tuesday are completely disproportionate in comparison to other Departmental cuts." said Michael Starrett, chief executive of the Heritage Council.

"As a result, the future of heritage initiatives nationwide which have created hundreds of jobs, empowered local communities and enhanced the value of heritage as a tourism resource, are severely threatened", he added.

According to the Heritage Council, such cuts will have a detrimental impact on the national heritage and the quality of tourism offered. In 2009, over three million overseas visitors engaged in cultural/historical and spent an estimated €1.9 billion.  Funding will now no longer be available to protect and manage the nations heritage.

For information on the Heritage Council's marine publications section click here and on inland waterways logon to www.heritagecouncil.ie/inland_waterways/

 

Published in Coastal Notes

Ireland's Offshore Renewable Energy

Because of Ireland's location at the Atlantic edge of the EU, it has more offshore energy potential than most other countries in Europe. The conditions are suitable for the development of the full range of current offshore renewable energy technologies.

Offshore Renewable Energy FAQs

Offshore renewable energy draws on the natural energy provided by wind, wave and tide to convert it into electricity for industry and domestic consumption.

Offshore wind is the most advanced technology, using fixed wind turbines in coastal areas, while floating wind is a developing technology more suited to deeper water. In 2018, offshore wind provided a tiny fraction of global electricity supply, but it is set to expand strongly in the coming decades into a USD 1 trillion business, according to the International Energy Agency (IEA). It says that turbines are growing in size and in power capacity, which in turn is "delivering major performance and cost improvements for offshore wind farms".

The global offshore wind market grew nearly 30% per year between 2010 and 2018, according to the IEA, due to rapid technology improvements, It calculated that about 150 new offshore wind projects are in active development around the world. Europe in particular has fostered the technology's development, led by Britain, Germany and Denmark, but China added more capacity than any other country in 2018.

A report for the Irish Wind Energy Assocation (IWEA) by the Carbon Trust – a British government-backed limited company established to accelerate Britain's move to a low carbon economy - says there are currently 14 fixed-bottom wind energy projects, four floating wind projects and one project that has yet to choose a technology at some stage of development in Irish waters. Some of these projects are aiming to build before 2030 to contribute to the 5GW target set by the Irish government, and others are expected to build after 2030. These projects have to secure planning permission, obtain a grid connection and also be successful in a competitive auction in the Renewable Electricity Support Scheme (RESS).

The electricity generated by each turbine is collected by an offshore electricity substation located within the wind farm. Seabed cables connect the offshore substation to an onshore substation on the coast. These cables transport the electricity to land from where it will be used to power homes, farms and businesses around Ireland. The offshore developer works with EirGrid, which operates the national grid, to identify how best to do this and where exactly on the grid the project should connect.

The new Marine Planning and Development Management Bill will create a new streamlined system for planning permission for activity or infrastructure in Irish waters or on the seabed, including offshore wind farms. It is due to be published before the end of 2020 and enacted in 2021.

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE.

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE. Is there scope for community involvement in offshore wind? The IWEA says that from the early stages of a project, the wind farm developer "should be engaging with the local community to inform them about the project, answer their questions and listen to their concerns". It says this provides the community with "the opportunity to work with the developer to help shape the final layout and design of the project". Listening to fishing industry concerns, and how fishermen may be affected by survey works, construction and eventual operation of a project is "of particular concern to developers", the IWEA says. It says there will also be a community benefit fund put in place for each project. It says the final details of this will be addressed in the design of the RESS (see below) for offshore wind but it has the potential to be "tens of millions of euro over the 15 years of the RESS contract". The Government is also considering the possibility that communities will be enabled to invest in offshore wind farms though there is "no clarity yet on how this would work", the IWEA says.

Based on current plans, it would amount to around 12 GW of offshore wind energy. However, the IWEA points out that is unlikely that all of the projects planned will be completed. The industry says there is even more significant potential for floating offshore wind off Ireland's west coast and the Programme for Government contains a commitment to develop a long-term plan for at least 30 GW of floating offshore wind in our deeper waters.

There are many different models of turbines. The larger a turbine, the more efficient it is in producing electricity at a good price. In choosing a turbine model the developer will be conscious of this ,but also has to be aware the impact of the turbine on the environment, marine life, biodiversity and visual impact. As a broad rule an offshore wind turbine will have a tip-height of between 165m and 215m tall. However, turbine technology is evolving at a rapid rate with larger more efficient turbines anticipated on the market in the coming years.

 

The Renewable Electricity Support Scheme is designed to support the development of renewable energy projects in Ireland. Under the scheme wind farms and solar farms compete against each other in an auction with the projects which offer power at the lowest price awarded contracts. These contracts provide them with a guaranteed price for their power for 15 years. If they obtain a better price for their electricity on the wholesale market they must return the difference to the consumer.

Yes. The first auction for offshore renewable energy projects is expected to take place in late 2021.

Cost is one difference, and technology is another. Floating wind farm technology is relatively new, but allows use of deeper water. Ireland's 50-metre contour line is the limit for traditional bottom-fixed wind farms, and it is also very close to population centres, which makes visibility of large turbines an issue - hence the attraction of floating structures Do offshore wind farms pose a navigational hazard to shipping? Inshore fishermen do have valid concerns. One of the first steps in identifying a site as a potential location for an offshore wind farm is to identify and assess the level of existing marine activity in the area and this particularly includes shipping. The National Marine Planning Framework aims to create, for the first time, a plan to balance the various kinds of offshore activity with the protection of the Irish marine environment. This is expected to be published before the end of 2020, and will set out clearly where is suitable for offshore renewable energy development and where it is not - due, for example, to shipping movements and safe navigation.

YEnvironmental organisations are concerned about the impact of turbines on bird populations, particularly migrating birds. A Danish scientific study published in 2019 found evidence that larger birds were tending to avoid turbine blades, but said it didn't have sufficient evidence for smaller birds – and cautioned that the cumulative effect of farms could still have an impact on bird movements. A full environmental impact assessment has to be carried out before a developer can apply for planning permission to develop an offshore wind farm. This would include desk-based studies as well as extensive surveys of the population and movements of birds and marine mammals, as well as fish and seabed habitats. If a potential environmental impact is identified the developer must, as part of the planning application, show how the project will be designed in such a way as to avoid the impact or to mitigate against it.

A typical 500 MW offshore wind farm would require an operations and maintenance base which would be on the nearby coast. Such a project would generally create between 80-100 fulltime jobs, according to the IWEA. There would also be a substantial increase to in-direct employment and associated socio-economic benefit to the surrounding area where the operation and maintenance hub is located.

The recent Carbon Trust report for the IWEA, entitled Harnessing our potential, identified significant skills shortages for offshore wind in Ireland across the areas of engineering financial services and logistics. The IWEA says that as Ireland is a relatively new entrant to the offshore wind market, there are "opportunities to develop and implement strategies to address the skills shortages for delivering offshore wind and for Ireland to be a net exporter of human capital and skills to the highly competitive global offshore wind supply chain". Offshore wind requires a diverse workforce with jobs in both transferable (for example from the oil and gas sector) and specialist disciplines across apprenticeships and higher education. IWEA have a training network called the Green Tech Skillnet that facilitates training and networking opportunities in the renewable energy sector.

It is expected that developing the 3.5 GW of offshore wind energy identified in the Government's Climate Action Plan would create around 2,500 jobs in construction and development and around 700 permanent operations and maintenance jobs. The Programme for Government published in 2020 has an enhanced target of 5 GW of offshore wind which would create even more employment. The industry says that in the initial stages, the development of offshore wind energy would create employment in conducting environmental surveys, community engagement and development applications for planning. As a site moves to construction, people with backgrounds in various types of engineering, marine construction and marine transport would be recruited. Once the site is up and running , a project requires a team of turbine technicians, engineers and administrators to ensure the wind farm is fully and properly maintained, as well as crew for the crew transfer vessels transporting workers from shore to the turbines.

The IEA says that today's offshore wind market "doesn't even come close to tapping the full potential – with high-quality resources available in most major markets". It estimates that offshore wind has the potential to generate more than 420 000 Terawatt hours per year (TWh/yr) worldwide – as in more than 18 times the current global electricity demand. One Terawatt is 114 megawatts, and to put it in context, Scotland it has a population a little over 5 million and requires 25 TWh/yr of electrical energy.

Not as advanced as wind, with anchoring a big challenge – given that the most effective wave energy has to be in the most energetic locations, such as the Irish west coast. Britain, Ireland and Portugal are regarded as most advanced in developing wave energy technology. The prize is significant, the industry says, as there are forecasts that varying between 4000TWh/yr to 29500TWh/yr. Europe consumes around 3000TWh/year.

The industry has two main umbrella organisations – the Irish Wind Energy Association, which represents both onshore and offshore wind, and the Marine Renewables Industry Association, which focuses on all types of renewable in the marine environment.

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