Wednesday, April 12, 2017

Ocean tech: Robot sea snakes and shoal-swimming subs

The self-propelling Eelume robot moves like a snake through the water
source : Kongsberg

From BBC by Zoe Kleinman

In the near future, ocean search-and-repair specialists won't need arms or legs, according to one vision.

In fact, they are destined to be much more slithery.
"We try to get people to move away from the word snake because it's seen as kind of scary but even I find myself all the time calling it a snake," says Richard Mills from marine tech firm Kongsberg.
If the idea of a swimming robot snake doesn't appeal, you might want to skip the next few paragraphs.
I first mentioned Eelume to a friend who asked me whether I would be allowed to have a swim with it.
I was secretly relieved that the answer was no.
What started as a university robotics research project in Norway 10 years ago, has become a commercial prototype - and it is unavoidably snake-like.
It's designed to inspect structures on the sea bed and carry out repairs, and is currently being tested on oil rigs.
The flexible, self-propelling, tubular device has a camera at each end and is kitted out with sensors.
Because it has a modular design, its parts can be switched to suit different tasks, with swappable tools including a grabber and cleaning brush.

The Eelume robot sea snake that could one day explore the Titanic

The design allows the robot to work in confined spaces that might be inaccessible to other vehicles, as well as to wriggle its body to stay in place in strong currents.
And because it is designed to connect itself to a seabed dock when not in use, it can be deployed at any time whatever the surface conditions.

It isn't yet on the market, but was recently on show at the Southampton's Ocean Business trade fair.
Future plans already include a cheap 3D-printed model and another which can operate in very deep water.
"Something like going inside the Titanic, where divers can't, is a great opportunity that we could look at in the future," said Mr Mills.
"We are only limited by imagination in where we can take this vehicle."

ASV Global is leading the development and deployment of autonomous boats in both military and commercial applications across the globe.

Self-driving boats

Just as driverless cars are causing excitement on land, autonomous boats are also making a splash.
"Unmanned systems allow you to focus on the data," said Dan Hook from UK firm ASV Global, which was also at the Southampton expo.
"You stay on board your ship in a warm, dry location, you can focus on the data and where to send the unmanned system next."
The firm's two autonomous vessels - which can also be operated via remote control - currently run on diesel generators rather than battery power.
"We're seeing increasing regulation on the types of engines we can use - it's a good thing to force you into the cleaner engines," he said.
"They are quieter and more efficient... but the future is electric, we're seeing it in cars, it's happening in our industry as well."

 Project to create pressure tolerant battery pack for Marine Autonomous Systems (MAS).
Consortium headed by Steatite.

Sea batteries

Batteries from the specialist battery-maker Steatite's have to function at low temperatures and high pressure, and power deep-sea devices for days at a time.
Lithium-sulfur battery tech, already in the sights of electric car makers, is set to be trialled on board the famous autosub trio collectively known as Boaty McBoatface later this year - and it will be a Steatite creation.
"Lithium-sulfur is the next generation from lithium-ion," said the firm's Paul Edwards.
"It's got a better energy density, so you get more energy for the amount of weight you are carrying."
But if you think that it is battery life that holds marine tech back, then think again.

Deep Trekker builds portable and easy to use submersible robots.

It is more likely to be your concentration span, said Sam McDonald, president of a Canadian firm called Deep Trekker.
The firm was demonstrating two remotely operated underwater vehicles (ROVs) - the larger of which was about the size of a small child.
Ms McDonald said that the operator would become tired before the ROV did.
"I need to take a break after three or four hours of running it," she said.
"You're looking at a screen the whole time, it takes a great deal of concentration.
"You're trying to hold position under the water, looking at infrastructure or watching tools or divers work, you're constantly moving your hands and eyes," she explained.
If that sounds exhausting imagine being in charge of a whole load of them at once.


Return to sender... rewards will be offered for washed-up ecosubs

Micro-submarines

Planet Ocean was showing off the ecosub - a small, thigh-sized device that looks a bit like an old shell casing and is designed to "swim" in shoals, with each individual sub packed with different sensors to build up collectively a strong picture of the group's watery environment.
One "pilot" can oversee many simultaneously, and they are so small that each individual sub can only carry four or five sensors, said managing director Terry Sloane.
"If they bump into each other it's not a big disaster," he said.
"They only weigh 5kg [11lb] on land".
Keen to encourage recycling, Mr Sloane is prepared to offer a bounty for washed-up ecosubs that find their way to the beach - there's a hotline number on the casing for eagle-eyed beachcombers to call.
"We don't want to leave things floating around in the ocean, but it doesn't take many hours of searching for one to make it uneconomical to recover," he said.
"We expect people to recover them and claim a reward."

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Tuesday, April 11, 2017

Great Barrier Reef at 'terminal stage': scientists despair at latest coral bleaching data

Aerial view of parts of the Great Barrier Reef that has experienced coral bleaching, March 2017.
Video courtesy ARC Centre of Excellence for Coral Reef Studies.


‘Last year was bad enough, this is a disaster,’ says one expert as Australia Research Council finds fresh damage across 8,000km 

Back-to-back severe bleaching events have affected two-thirds of Australia’s Great Barrier Reef, new aerial surveys have found.
The findings have caused alarm among scientists, who say the proximity of the 2016 and 2017 bleaching events is unprecedented for the reef, and will give damaged coral little chance to recover.

Scientists with the Australian Research Council’s Centre of Excellence for Coral Reef Studies last week completed aerial surveys of the world’s largest living structure, scoring bleaching at 800 individual coral reefs across 8,000km.
The results show the two consecutive mass bleaching events have affected a 1,500km stretch, leaving only the reef’s southern third unscathed.
Where last year’s bleaching was concentrated in the reef’s northern third, the 2017 event spread further south, and was most intense in the middle section of the Great Barrier Reef.
This year’s mass bleaching, second in severity only to 2016, has occurred even in the absence of an El Niño event.


Mass bleaching – a phenomenon caused by global warming-induced rises to sea surface temperatures – has occurred on the reef four times in recorded history.
Prof Terry Hughes, who led the surveys, said the length of time coral needed to recover – about 10 years for fast-growing types – raised serious concerns about the increasing frequency of mass bleaching events.
“The significance of bleaching this year is that it’s back to back, so there’s been zero time for recovery,” Hughes told the Guardian.
“It’s too early yet to tell what the full death toll will be from this year’s bleaching, but clearly it will extend 500km south of last year’s bleaching.”

 Aerial surveys of the world’s largest living structure, scoring bleaching at 800 individual coral reefs across 8,000km.
Photograph: Ed Roberts/ARC 

Last year, in the worst-affected areas to the reef’s north, roughly two-thirds of shallow-water corals were lost.
Hughes has warned Australia now faces a closing window to save the reef by taking decisive action on climate change.
The 2017 bleaching is likely to be compounded by other stresses on the reef, including the destructive crown-of-thorns starfish and poor water quality.
The category-four tropical cyclone Debbie came too late and too far south for its cooling effect to alleviate bleaching.



But Hughes said its slow movement across the reef was likely to have caused destruction to coral along a path up to 100km wide.
“It added to the woes of the bleaching. It came too late to stop the bleaching, and it came to the wrong place,” he said.
The University of Technology Sydney’s lead reef researcher, marine biologist David Suggett, said that to properly recover, affected reefs needed to be connected to those left untouched by bleaching.
He said Hughes’ survey results showed such connectivity was in jeopardy.
“It’s that connection ultimately that will drive the rate and extent of recovery,” Suggett said. “So if bleaching events are moving around the [Great Barrier Reef] system on an annual basis, it does really undermine any potential resilience through connectivity between neighbouring reefs.”
Some reef scientists are now becoming despondent.
Water quality expert, Jon Brodie, told the Guardian the reef was now in a “terminal stage”.
Brodie has devoted much of his life to improving water quality on the reef, one of a suite of measures used to stop bleaching.

 ARC conducted an aerial and underwater survey of the reef which concluded that two-thirds of it has been hit by mass coral bleaching for second time in 12 months.
Photograph: Ed Roberts/ARC

He said measures to improve water quality, which were a central tenet of the Australian government’s rescue effort, were failing.
“We’ve given up. It’s been my life managing water quality, we’ve failed,” Brodie said.
“Even though we’ve spent a lot of money, we’ve had no success.”
Brodie used strong language to describe the threats to the reef in 2017.
He said the compounding effect of back-to-back bleaching, Cyclone Debbie, and run-off from nearby catchments should not be understated.
“Last year was bad enough, this year is a disaster year,” Brodie said.
“The federal government is doing nothing really, and the current programs, the water quality management is having very limited success. It’s unsuccessful.”

 Bleached coral at Mission Beach Reefs.
Photograph: Bette Willis/ARC Centre of Excellence for Coral Reef Studies

Others remain optimistic, out of necessity.
Jon Day was a director of the Great Barrier Reef Marine Park Authority for 16 years until retiring in 2014.
Day, whose expertise lies in protected area planning and management, said the federal government’s approach to protecting the reef was sorely lacking.
He said it was taking too relaxed an approach to fishing, run-off and pollution from farming, and the dumping of maintenance dredge spoil.
The government was far short of the $8.2bn investment needed to meet water quality targets, he said, and Australia was on track to fail its short-term 2018 water quality targets, let alone achieve more ambitious long-term goals.
“You’ve got to be optimistic, I think we have to be,” Day said.
“But every moment we waste, and every dollar we waste, isn’t helping the issue. We’ve been denying it for so long, and now we’re starting to accept it. But we’re spending insufficient amounts addressing the problem.”

The latest surveys spell more bad news for the Great Barrier Reef. Following a record high water surface temperature and mass bleaching event in 2016, the Australian icon may be on track for a similar event this year.
Aerial and underwater footage from 2016 and 2017, shown in this video, shows the extent of the bleaching and die-off, which has already impacted large portions of the reef.

The Queensland tourism industry raised questions about the reliability of the survey, saying scientists had previously made exaggerated claims about mortality rates and bleaching.


“There is no doubt that we have had a significant bleaching event off Cairns this time around,” said Col McKenzie, of the Association of Marine Park Tourism Operators.
“The far north probably did a little bit better, Port Douglas to Townsille has seen some significant bleaching,” he said.
“Fortunately we haven’t seen much mortality at this time, and fortunately the temperatures have fallen.”
McKenzie said more money needed to be invested in water quality measures, and criticised what he saw as a piecemeal and uncoordinated approach to water quality projects up and down the coast.


Underwater video shows where bleaching has damaged the Great Barrier Reef


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Monday, April 10, 2017

What can the South China Sea learn from the Arctic?

USS Connecticut surfaces above the ice during ICEX 2011.​
Flickr/U.S. Navy

From CIMSEC by Commanderin the Royal Norwegian Navy

The maritime region centered on the South China Sea has been a vital international trade route and reservoir of natural resources throughout modern history.
Today, its importance cannot be understated: half the volume of global shipping transits the area, competition for energy and fishing rights is intensifying between surrounding nations (with growing populations), commercial interests are increasing, and regional military spending increases lead the world.
Rivalry over resources and security has triggered disputes about sovereignty and historical rights. China has used its increasing relative power to aggressively claim sovereign rights over two-thirds of the South China Sea within the so called “Nine-Dash Line.”
Overlapping claims by the Philippines, Vietnam, Malaysia, Brunei, Taiwan, and Singapore are being dismissed and have sometimes resulted in armed confrontations.
Furthermore, the construction of artificial islands and significant military installations on reefs and rocks is underpinning Chinese sea control ambitions within the “First Island Chain.”
This deteriorating security environment threatens regional stability, adherence to international law, and the freedom of the seas.
Furthermore, it has the potential to escalate into conflict far beyond the levels of militarization and skirmishes between fishing fleets, coastguards and navies seen so far.


The U.S. has been deeply involved in the creation and management of the East-Asian state system since World War II, contributing to its economic progress and security arrangements, which include alliances with the Philippines, Japan and South Korea.
Thus, the regional interests of the United States include freedom of navigation, unimpeded lawful commerce, relations with important partners and allies, peaceful resolution of disputes, and the recognition of maritime rights in conformity with international norms and law (with the provisions of the United Nations Convention on the Law of the Sea (UNCLOS) in particular).
These principles are universally applicable and must be upheld every time and everywhere to be respected.
Regional countries are now reconsidering the relevance and commitment of the balancing power of the U.S. in light of Beijing’s dismissal of American concerns and bilateral initiatives towards its smaller neighbors.

The Arctic region similarly holds the potential for great power rivalry, but in contrast offers a good example of peaceful settlement and compromise.
The diminishing ice cap is causing a growing emphasis on resources, international waterways, and commercial activity in the Arctic, where there are also competing claims and great power security interests represented.
However, the Arctic nations have chosen to cooperate with regards to responsible stewardship and use UNCLOS and supplementing treaties as the legal basis.
The cooperative framework is constituted by the Arctic Council, the agreed adherence to international law and arbitration tribunals, bilateral and multilateral treaties, demilitarized zones, Incident at Sea agreements, joint fisheries commissions, as well as the power balance between Russia and the NATO alliance.
As a result, although there is potential for competition and diverging national interests, mutually beneficial compromises and diplomatic solutions to maintain stability and predictability are preferred.

A map of claims on the Arctic seafloor. (Durham University)

Arctic Dispute and Resolution

Currently there are overlapping claims from Russia and Denmark for the seabed under the North Pole (Lomonosov and Alpha-Mendeleyev Ridges) under consideration by the Commission on the Limits of the Continental Shelf, and Canada is preparing another competing claim.
These claims can further be used as a basis for bilateral agreements on maritime delimitations.
This was the case between Norway and Russia in 2010, and there are prospects of a similar agreement between Russia and Denmark.
Such cooperative mechanisms, institutions and shared principles in the Arctic are far more robust than comparable efforts in the Southeast Asia, such as ASEAN or the “Declaration on the Conduct of Parties in the South China Sea.”
The Svalbard Treaty of 1920 set a standard for international governance, and was a bold and forward looking concept when introduced almost 100 years ago.
The archipelago was discovered by Dutch explorers in 1596, and resources were since extracted by Holland, England, Russia, and Scandinavians.
Eventually, the major powers voluntarily conceded sovereignty over the islands to the young Norwegian state through a commission related to the Paris Peace Conference after World War I.
The Treaty allows visa-free access for citizens of signatory states, equal rights to extract natural resources, freedom to conduct scientific activities, ensures environmental protection, and prohibits permanent military installations.
This agreement exemplifies the feasibility of imposing restrictions on sovereign authority, the accommodation of the interests of the parties, and adherence to non-discrimination principles.

Episodes of Confrontation

Much like the South China Sea, there have been clashes between the coastal states in the Arctic.
Between 1958-1961 and in 1976, there was a state of armed conflict and diplomatic breakdown between the United Kingdom and Iceland over fishing rights.
The Royal Navy escorted British fishing vessels to confront the Icelandic Coast Guard in the contested zone.
Shots were fired, ships were rammed and seized, and fishing gear was cut loose from the ships in heated skirmishes.
However, on both occasions it was the stronger power that stood down to the weaker, as Britain finally recognized Iceland’s right to protect its resources after significant international diplomacy that included the forming of UNCLOS.

Icelandic patrol ship ICGV Óðinn and British frigate HMS Scylla clash in the North Atlantic in 1973. (Wikimedia Commons)
Other minor events in the Arctic include the 1993 Loophole dispute between Norway and Iceland, and Hans Island, the only unsolved territorial dispute, which is under negotiation between Canada and Denmark.
The successful diplomatic de-escalation of these cases is in stark contrast to the clashes between China and its rivals in events like the 2012 Scarborough Shoal standoff, the 1995 occupation of Mischief Reef in the Spratlys, the 1988 battle over the Spratly Islands, the 1976 grab of the Paracel Islands, and of course the blunt Chinese dismissal of the 2016 ruling from the International Arbitration Court against the legitimacy of the Nine-Dash Line claim.


China has mostly shown an uncompromising attitude in the South China Sea since the 1970s, without serious U.S.-led international efforts to check its use of force.
But China too has occasionally demonstrated its willingness to forward claims to international arbitration bodies, such as its 2012 submission to the Commission on the Limits of the Continental Shelf regarding the East China Sea However, that effort must be viewed in context of the ongoing efforts at the time to be accepted as observer in the Arctic Council.

Applying Arctic Lessons

The recent row between the Chinese and the U.S. Navy over an Unmanned Underwater Vehicle is symptomatic of the evolving problem, which must be addressed by the new administration in the White House.
The South China Sea currently constitutes the primary global hotspot where major and regional powers’ vital interests and alliance commitments directly clash.
A framework to manage this region must be negotiated by the two superpowers primarily and supported by the other involved nations.
It requires the will to compromise and the pursuit of mutual interests while looking forward – a set-up which could benefit from the indicated transactional policy approach of President Trump.
Any long-term solution would have to accommodate legitimate Chinese demands for security and resources.
But, the U.S. must commit strongly by dedicating all available instruments of power (diplomatic, information, military, and economic measures) to impose negative consequences unless China is willing to negotiate from its strong position.
Furthermore, the U.S. must uphold the same standards and make concessions itself.

It must therefore expediently ratify UNCLOS with its international tribunals and vow to respect the treaties that must be created to regulate sovereignty, demilitarization, commercial rights and responsibilities to protect fish stocks and the environment.
Chinese concerns about the “One China Policy,” American forward basing, and policy on the Korean peninsula must also be on the table, as well as cooperation on regional trade agreements.

Chinese J-11 fighter jet is pictured on the airstrip at Woody Island in the South China Sea in this March 29, 2017 handout satellite photo.
CSIS Asia Maritime Transparency Initiative/DigitalGlobe/Handout via Reuters

While state security can be achieved in the South China Sea through treaties, demilitarization, power balance and predictability, the conditions for prosperity flow from similar efforts.
As demonstrated in the Arctic, good order at sea and responsible stewardship encourages investments and lay the foundation for cooperative ventures that are mutually beneficial.
Uncontested sovereignty and fair trade regulations are incentives for developing expensive infrastructure necessary for harvesting resources under the seabed.
The inevitable link connecting China and the U.S. is the economic dependency between the two largest economies in the world.
So far, they have both unsuccessfully introduced regional free trade initiatives in order to create beneficial terms for themselves such as the Regional Comprehensive Economic Partnership agreement and the Trans Pacific Partnership respectively.
An obvious flaw with these proposals is that they have excluded the opposite superpower.
Since both countries are indispensable trading partners to most others, a cooperative effort to create trade agreements would benefit both and could not be ignored.

Although unresolved sovereignty issues in the South China Sea make it a tough case, there is a model to study and lessons to be learned in the cooperative management of the Arctic region (as well as the 1959 Antarctic Treaty and the 1936 Montreux Convention).
However, controlling the impulses of a great power to dominate its surroundings requires a massive international diplomatic effort, creating alternative mutually beneficial conditions and a proper balancing of military power.
Active U.S. presence and regional capability is fundamental to maintaining a balance and influencing the shaping of a cooperative environment.
But first and foremost, there is a requirement for building trust and confidence through long term commitment to international cooperation, predictability and clear intentions.
For a start, the good examples from the Arctic have been shared with China, Japan, India, the Republic of Korea and Singapore – all of which are involved or have vital interests in the South China Sea dispute – since they became observer states to the Arctic Council in 2013.
Likewise, the U.S. can also benefit from its experience as an Arctic nation, and from the insight gained from holding the chairmanship of the Arctic Council since 2015.
Moving forward, the Arctic offers successful governance lessons that can be applied to the South China Sea in order to maintain stability and ensure prosperity for all.

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Sunday, April 9, 2017

Image of the week : Elephant rock, a natural sculture in Iceland

It seems as though gigantic elephant came to the shore of Heimaey island, to quench his thirst.
The enormous shape appears to be formed from basalt rock, that gives a surface appearance of wrinkled elephant skin.


f you want to see something really wonderful, then the Elephant rock is ideal place for you.
This rock is truly one of the amazing natural sculptures on mother earth.
The Elephant Rock is a natural rock formation found on the island of Heimaey (meaning Home Island) in Iceland’s Vestmannaeyjar archipelago.

The Elephant Rock is a natural rock formation (meaning Home Island)
in Iceland's Vestmannaeyjar archipelago

Heimaey is most inhabited island in Iceland with 4,500 residents in an area of 5.2 square miles.
The beautiful Heimaey is actually a home to Eldfell (Means “Mountain of Fire”).
This 660 foot high volcano has spewed lava on numerous occasions, leading many to believe it is the cause of the Elephant Rock The Island having a scenario such as this could have been the cause of the huge rock that happened to be shaped just like an elephant.

What a glorious mother sculpture.
I guess, you won’t believe this wonder of nature, but this is real rock not Photoshop.
Besides the amazing Elephant Rock, you might see Keiko, the whale from the Free Willy films as this was where he was actually set free, and also summer is when the island becomes populated by millions and millions of adorable puffins!
If you’re planning to visit Iceland, then Elephant Rock is a must place to see.

Localization with the GeoGarage platform (Icelandic nautical charts)

Heimaey island in Iceland

This natural rock formation off the coast of Iceland, impresses the travelers.

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Saturday, April 8, 2017

Pufferfish 'crop circles'

A Japanese pufferfish makes an extraordinary sand sculpture to attract and win a mate.
(BBC)

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