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Showing posts with label Pacific Ocean. Show all posts
Showing posts with label Pacific Ocean. Show all posts

Monday 9 July 2012

China builds nuclear-powered deep-sea station

Not content with ambitious plans to dominate space exploration over the coming decades, China is also looking to master the ocean with the development of a deep-sea station which could be its first step towards large-scale underwater mining.


Plans for the nuclear powered mobile deep-sea station were unveiled earlier this year by China Ship Scientific Research Centre – the state-owned venture whose Jiaolong manned submersible recently reached depths of over 7,000 metres – according to South China Morning Post.

The craft would have dimensions of 60.2m x 15.8m x 9.7m, weigh about 2,600 tonnes, and have enough room for 33 crew members.

It would have propellers to move submarine-like underwater and several ports to allow smaller craft to dock with it, the report said.

On that note, a smaller prototype which could carry 12 crew on an 18-day expedition is currently in production, with an expected delivery date of 2015.

While China’s plans in space appear to revolve heavily around military strategy, its deep sea efforts have more to do with the country finding an answer to its current energy problems.

Drilling for oil and mining copper and other natural resources both appear to be high on the list of China’s deep-sea priorities, although technological limitations may hold back advances in the project for some time, the report claims.

When China wants something it usually succeeds in the end, however, so it would not be out of the question to see the launch of a full-sized deep-sea station by 2030, according to SCMP.

As with most elements of Chinese technology innovation, the PLA is never too far away – this deep-sea project is apparently funded by 863 Program, a hi-tech state scheme.

By Phil Muncaster
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Science

China plans nuclear deep-sea mining base


A Chinese company is set to build a nuclear-powered mobile deep-sea station in the western Pacific, according to local reports.

The China Ship Scientific Research Centre's proposed station -- which will have huge propellers to enable free movement in the ocean depths -- will be manned by 33 crew for up to two months at a time and powered by a nuclear reactor.

Its main goal, according to reports in the South China Sea Post, will be to mine for precious metals. The nation, which recently announced it is stockpiling rare earth elements amid fears of shortages, would use the facilities to hunt mainly for copper, lead, zinc, silver, gold and oil.

Underwater mining is typically a costly affair, full of potential dangers and problems. Canadian-owned Nautilus Minerals Inc was the first commercial copper-gold mining venture to be granted permission to explore the Bismarck Sea floor surrounding Papua New Guinea, but has already run into problems with environmentalists warning the mining could destroy marine life and cause devastating oil spills. China's Tongling Non-ferrous Metals Group had signed up as the project's very first customer in April 2012, but a dispute with Papua New Guinea also stands to halt the mining project's 2013 launch completely

The Chinese company appears to be wary of these issues, and is therefore treading carefully, with plans for the bold venture slated for a more reasonable 2030 launch -- according to experts the South China Sea Post spoke to -- and a smaller 12-crew prototype capable of 18-day dives set to launch by 2015. The larger 60-metre-long craft will weigh in at 2,600 tonnes.

In preparation, the China Ship Scientific Research Centre has been engaging in test dives of manned vehicles -- its Jiaolong model reached a record-breaking 7,020 metres at the Mariana Trenchin the Pacific Ocean on the same day that China's Shenzhou-9 spacecraft docked at the Tiangong 1 space station.

Reports suggest that the project is being funded by the state's 863 Program, a fund specifically for the development of innovative technologies, which has links with the military. Nevertheless, mining for oil and copper seem to be the most likely priorities on the agenda, with crew on the station able to spend two months at a time living and mining underwater.

Shanghai is hosting the 41st Underwater Mining Institute conference October 2012, and further details could potentially be revealed then. In the meantime, a look at the China Ship Scientific Research Centre's website reveals fields of interest that range from manned submersibles such as the Jiaolong vessel to atmospheric one-man diving suits and autonomous underwater robots -- the latter would be exponentially beneficial in aiding aquanauts during danger-filled underwater mining missions.

The centre also appears to be keen on waterslides. Definitely one to watch.

By Liat Clark WIRE. UK. CO

Saturday 16 June 2012

China sets new record submersible deepest seas dive

Chinese sub dives over 6,000 meters

ABOARD XIANGYANGHONG 09 - China's manned deep-sea submersible Jiaolong and three divers inside are rising from over 6,000 meters below the sea in the Mariana Trench after setting the country's dive record on Friday.
China's manned deep-sea submersible, Jiaolong, is unmoored from its mother ship before making its first dive in the Mariana Trench, as part of a bid to go to depths of up to 7,000 meters, June 15, 2012. [Photo/Xinhua]

The dive, which began at 9 am local time Friday (2300 GMT Thursday), is the first of a series of six scheduled ones.

The dive went smoothly and cost about 3 hours for the Jiaolong to reach the depth of 6,000 meters at 12 pm local time (0200GMT), which far surpassed the 5,188-meter record it made last July.

The three divers Ye Cong, Cui Weicheng and Yangbo inside the vessel wished China's Shenzhou-9 spacecraft launch a success from 6,055 meters below the sea.

The Shenzhou-9 manned spacecraft Thursday completed its final full-system drill before its planned launch in mid-June.

The Jiaolong threw ballast iron and began to rise at 12:44 pm local time (0244 GMT).

So far, the three drivers and the Jiaolong itself have been OK.

There was something wrong with the submersible's No 1 communication system, but the No 2 set is working soundly to guarantee the connection between the vessel and Xiangyanghong 09, its mother ship.

The rise is expected to last three hours and the on-scene dive headquarter will timely release the diving information.

The Jiaolong, depending on local weather and sea conditions, will try another five dives, deeper and deeper, in the coming days. The fifth and sixth are scheduled to challenge the depth of 7,000 meters.

The six dives, each of which may last eight to 12 hours, will test various functions and performances of the manned submersible at great depths.

Experts say, for safety, sea dives can only be conducted in daylight under no-more-than-four-class wind and no-more-than-three-class wave.

The Xiangyanghong 09 ship reached the designated dive zone in Mariana Trench on Monday morning.

China's manned deep-sea submersible, Jiaolong, is hung up before making its first dive in the Mariana Trench, as part of a bid to go to depths of up to 7,000 meters, June 15, 2012. [Photo/Xinhua]

Submersible sets new China dive record 

The "Jiaolong" craft descended to a depth of 6,000 metres in the Mariana Trench in the western Pacific OceanEnlarge

File photo of the Chinese submersible "Jiaolong". The manned Chinese submersible on Friday set a new record for the country's deepest ever sea dive at 6,000 metres (19,685 feet), state media said.

A manned Chinese submersible set a new record for the country's deepest sea dive Friday, over 6,000 metres, showing Beijing's technological ambitions as it also readies for its first manned space docking.

The "Jiaolong" craft dived over 19,685 feet into the Mariana Trench in the western Pacific Ocean, the first in a series of six dives which will plumb depths of 7,000 metres, the official Xinhua news agency said.

The deep-sea dive push comes as China prepares to launch a spacecraft on Saturday to conduct its first manned space docking, as part of efforts to establish a permanent space station by 2020.

The submersible, which carried three men, reached around 6,500 metres with only a technical glitch in communications, state media said.

"In our first battle, we have already reached 6,500 metres. All of our tasks have been completed," chief commander Liu Feng told state television aboard the ship carrying the submersible.

He said a piece of communications equipment on the surface of the water failed, but the team switched to a back-up system and restored communications. He did not say whether contact was completely lost with the Jiaolong.

The same vessel -- named after a dragon from Chinese mythology -- reached 5,188 metres in a Pacific dive last July, the nation's previous record.

Friday's dive sparked outpourings of nationalism on the Internet and comparisons to the upcoming space launch.

"Three pilots will take the Jiaolong to attempt the 7,000-metre dive, while three astronauts will take the Shenzhou-9 to connect with the Heavenly Palace," a Shanghai based blogger wrote on his microblog.

"Up in the sky we can pluck the moon, down in the oceans we can catch the turtles," said the posting on Sina's microblog service, quoting a saying attributed to late Chinese leader Mao Zedong.

Experts say China intends to use the submersible for scientific research, such as collecting samples of undersea life and studying geological structures, as well as future development of mineral resources.

But one Chinese expert on Friday described the latest dives as an "experiment" for China and said future use of submersibles for scientific research faced obstacles, such as with stability and durability of the craft.

"Even after it reaches the 7,000-metre depth, it still remains a question whether it can achieve scientific purposes," Zhou Huaiyang, professor of the School of Ocean and Earth Sciences at Shanghai's Tongji University, told AFP.

Scientists say the oceans' floors contain rich deposits of potentially valuable minerals, but the extreme depths pose technical difficulties in harvesting them on a large scale.

 AFP
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Sunday 3 June 2012

US naval fleet to shift towards Pacific by 2020

New strategy: The US plans to shift the bulk of its naval fleet to the Pacific, as Defence Minister Stephen Smith dismissed fears the move would stoke tensions with China. Picture: AP AP

SHIFTING FOCUS:While the US plans a ‘new strategic focus’ in Asia, China warned that now is not the time to ‘make waves’ in the South China Sea, which it claims

AFP, BEIJING and SINGAPORE

US fighter jets take off from the flight deck of the Nimitz-class USS George Washington for joint military exercises between the US and South Korea in the Sea of Japan (also known as the East Sea) on June 26, 2010.

China’s Xinhua news agency warned yesterday it was no time to “make waves” in the disputed South China Sea, after the US said it would shift the bulk of its naval fleet to the Pacific Ocean by 2020.

“It is advisable for some to refrain from muddying the waters and fishing therein,” said Xinhua, referring to the sea, which is part of the Pacific and the subject of overlapping territorial claims.

China claims the sea in full, and it is also claimed in whole or part by Taiwan, Brunei, Vietnam, Malaysia and the Philippines.

“As regards the South China Sea tensions, it is some other claimants, whether emboldened by the United States’ new posture or not, that sparked the fire and have been stoking the flames,” the agency said.

It was Beijing’s “genuine wish” to turn the South China Sea “into a sea of peace, friendship and cooperation,” Xinhua added.

The commentary was a reaction to US Secretary of Defense Leon Panetta telling a summit in Singapore yesterday that the US would shift the bulk of its naval fleet to the Pacific as part of a new strategic focus on Asia,

The decision to deploy more ships to the Pacific Ocean, along with expanding a network of military partnerships, was part of a “steady, deliberate” effort to bolster the US role in an area deemed vital to the US’ future, he said.

He insisted the switch in strategy was not a challenge to China, saying both countries had a common interest in promoting security and trade in the region.

“By 2020, the navy will re-posture its forces from today’s roughly 50/50 percent split between the Pacific and the Atlantic to about a 60/40 split between those oceans,” Panetta said.

“That will include six aircraft carriers in this region, a majority of our cruisers, destroyers, littoral combat ships and submarines,” he added.

The US Navy currently has a fleet of 285 ships, with about half of those vessels deployed or assigned to the Pacific.

Although the total size of the overall fleet might decline in coming years depending on budget pressures, Pentagon officials said the number of US naval ships in the Pacific would rise in absolute terms.

The US also planned to expand military exercises in the Pacific and to conduct more port visits over a wider area extending to the Indian Ocean.

Panetta was speaking to mainly Asian defense officials and officers from 27 countries at the Shangri-la Dialogue, an annual summit organized by the London-based International Institute for Strategic Studies.

VIDEO: US EXPLAINS PACIFIC-FOCUSED MILITARY STRATEGY CCTV News - CNTV English



Unlike previous summits, China chose not to send a high-level delegation to the event, prompting speculation as to what lay behind the move.

Since US President Barack Obama unveiled plans in January to shift toward Asia, the Pentagon has offered up few details about how it intends to achieve that goal.

Yesterday’s announcement on the future of the US fleet provided the clearest evidence yet of a shift to Asia, and the speech appeared designed to reassure allies that Washington would back its much-publicized “pivot” to Asia with tangible action.

In his speech, Panetta said budget woes in Washington would not affect the plan to tilt towards Asia, which he said would take years to fully realize.

The US planned new investments in capabilities needed “to project power and operate in the Asia-Pacific,” including radar-evading fighter jets, a new long-distance bomber, electronic warfare and missile defenses, he said.

“But make no mistake — in a steady, deliberate and sustainable way — the United States military is rebalancing and is bringing an enhanced capability and development to this vital region,” he added.

Military commanders are revising doctrine to take into account new weapons that “could deny our forces access to key sea routes and lines of communication,” Panetta said.

Amid a growing US-China rivalry, US officials privately acknowledge the push for a larger military footprint is meant to reinforce US diplomacy when confronting Beijing’s assertive stance in the South China Sea.

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