News / Asia

Malaysia Plane Search Tests Limits of Ocean Mapping Technology

In this Thursday, April 17, 2014 photo provided by the Australian Defense Force, Evan Tanner, bottom right, and Chris Minor from Phoenix International conduct pre-deployment checks.
In this Thursday, April 17, 2014 photo provided by the Australian Defense Force, Evan Tanner, bottom right, and Chris Minor from Phoenix International conduct pre-deployment checks.
The next phase in the search for a missing Malaysia Airlines passenger jet, believed to be at the bottom of the Indian Ocean, is likely to test the limits of existing technology.
 
Australian officials say they are consulting with counterparts in China, Malaysia and the United States before deciding on what direction to take next in the search for Malaysia Airlines Flight 370, missing since March 8.
 
Australia’s prime minister Tony Abbott says a new search strategy will be needed if a U.S. Navy robotic submarine is unable to locate any trace of the 63-meter long jetliner on the seabed floor. Abbot told reporters Wednesday that the search will not be abandoned “until we have done everything we can to solve this mystery.”
 
Australia’s defense minister, David Johnston, says an announcement is expected next week and it is likely to involve “more capable” side-scan sonar devices.
 
Ron Allum, an Australian who designs vehicles for deep sea exploration, tells VOA such technology as described by the defense minister has a proven track record.
 
“That’s a vehicle that was used to find the wrecks of Titanic, Bismarck and HMS Sydney," Allum explained. "I thought that would have been probably brought into play earlier.”
 
Allum has dived in a submarine to a depth of 5,000 meters to help film the wreck of the Bismarck, a German battleship sunk by the British in the North Atlantic in 1941.
 
The U.S. Navy’s Bluefin-21 submersible has combed nearly all of a 310-square-kilometer search area on the bed of the Indian Ocean, off Australia’s west coast, near where signals believed to be from the plane’s black box were previously detected. So far, there has been no indication that its three-dimensional sonar map of the ocean floor has revealed anything relevant.
 
Much of the seabed where the submersible has been deployed is uncharted and as deep as seven kilometers.
 
Allum says existing equipment’s maximum operating depth is around six kilometers.
 
“A towed device is going to be really at the limit of the cable, as well," he noted, "because if you lower a steel cable into the deepest part of the ocean it will break under its own weight. So the cable length can become an issue.”
 
But Allum says looking for the plane’s fuselage at that depth would be easier with a towed device than relying on the remotely operated robot submersible vehicles.
 
“With a towed side scan you’ve got immediate feedback, it’s not limited by batteries," Allum explained. "It doesn’t have to come back to the surface to be downloaded. It can operate 24/7 behind a ship.”
 
An air search involving 10 planes was suspended for a second consecutive day Wednesday due to poor visibility and rough seas below.
 
However a dozen ships continued to search an area covering 38,000 square kilometers. No verified debris or oil from the plane has been spotted since it veered off course on March 8. Photographs of an unidentified two-and-a-half meter long metallic object which washed ashore 10 kilometers east of Augusta in western Australia are being analyzed by specialists.
 
The Malaysia Airlines flight, from Kuala Lumpur to Beijing, was carrying 239 passengers and crew. An unprecedented analysis of routine engine diagnostic signals from the Boeing 777 jet to satellites led searchers to a remote section of ocean far off the airliner’s scheduled course.

Steve Herman

A veteran journalist, Steve Herman is VOA's Southeast Asia Bureau Chief and Correspondent, based in Bangkok.

You May Like

Tired of Waiting, South Africans Demand Change ‘Now’

With chronic poverty and lack of basic services largely fueling recent xenophobic attacks, many in Rainbow Nation say it’s time for government to act More

Challenges Ahead for China's Development Plans in Pakistan

Planned $46 billion in energy and infrastructure investments in Pakistan are aimed at transforming the country into a regional hub for trade and investment More

'Forbidden City' Revisits Little Known Era of Asian-American Entertainment

Little-known chapter of entertainment history captured in 80s documentary is revisited in new digitally remastered format and book More

This forum has been closed.
Comment Sorting
Comments
     
by: alu from: china
May 16, 2014 7:22 AM
I think it is so foolish to burn billions of dollars in searching that jet by Aus. which is only suspected in a unconfirmed place. Actually, maybe it is more efficient to think how to force Malaysia officers to speak all the truth clearly. Their behavior implies me they are not worth being trusted.

by: meanbill from: USA
April 25, 2014 12:48 PM
ONE must wonder, if Malaysian Flight 380, "the Boeing 777-2H6ER an original Super Ranger" isn't on a big airfield, in a big hanger, being repainted with the extra fuel tanks, for a covert mission on a particular country?
A Boeing 777-2H6ER Super Ranger can fly over 10,823 nautical miles, (20,044 km), __ (and if it was hijacked, why crash it in the ocean?) __ and if it's not in the ocean, where is it, and for what purpose would it be use for? --- Makes you think, doesn't it?

by: LieutenantCharlie from: USA
April 23, 2014 9:25 PM
If there was no debris field floating along with the current, then there was no ocean crash,....100% of ocean crashes have a debris field that sometimes lasts for months,....in modern aircraft the seats are floatation devices, the pillows for your head float,....hundreds of other items from the kitchen to the cargo hole float,....so where is the debris field?
In Response

by: red phan from: us
April 24, 2014 2:26 PM
have to start all over again Malaysia Flight MH370 May Have Landed Somewhere Else; Search May Have to Start Over From Vietnam's jungle
Ho Chi Minh (trail)

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Cinema That Crosses Borders Showcased at Tribeca Film Festivali
X
April 24, 2015 4:09 AM
Among the nearly 100 feature length films being shown at this year’s Tribeca Film Festival in New York City are more than 20 documentaries and features with international appeal, from a film about a Congolese businessman in China, to documentaries shot in Pakistan and diaspora communities in the U.S., to a poetic look at disaffected South African youth. VOA’s Carolyn Weaver has more.
Video

Video Cinema That Crosses Borders Showcased at Tribeca Film Festival

Among the nearly 100 feature length films being shown at this year’s Tribeca Film Festival in New York City are more than 20 documentaries and features with international appeal, from a film about a Congolese businessman in China, to documentaries shot in Pakistan and diaspora communities in the U.S., to a poetic look at disaffected South African youth. VOA’s Carolyn Weaver has more.
Video

Video UN Confronts Threat of Young Radicals

The radicalization and recruitment of young people into Islamist extremist groups has become a growing challenge for governments worldwide. On Thursday, the U.N. Security Council heard from experts on the issue, which has become a potent threat to international peace and security. VOA’s Margaret Besheer reports.
Video

Video Growing Numbers of Turks Discover Armenian Ancestry

In a climate of improved tolerance, growing numbers of people in Turkey are discovering their grandmothers were Armenian. Hundreds of thousands of Armenians escaped the mass deportations and slaughter of the early 1900's by forced conversion to Islam. Or, Armenian children were taken in by Turkish families and assimilated. Now their stories are increasingly being heard. Dorian Jones reports from Istanbul that the revelations are viewed as an important step.
Video

Video Migrants Trek Through Western Balkans to Reach EU

Migrants from Africa and other places are finding different routes into the European Union in search of a better life. The Associated Press followed one clandestine group to document their trek through the western Balkans to Hungary. Zlatica Hoke reports that the migrants started using that route about four years ago. Since then, it has become the second-most popular path into Western Europe, after the option of sailing from North Africa to Italy.
Video

Video TIME Magazine Honors Activists, Pioneers Seen as Influential

TIME Magazine has released its list of celebrities, leaders and activists, whom it deems the world’s “most influential” in 2015. VOA's Ramon Taylor reports from New York.
Video

Video US Businesses See Cuba as New Frontier

The Obama administration's opening toward Cuba is giving U.S. companies hope they'll be able to do business in Cuba despite the continuation of the U.S. economic embargo against the communist nation. Some American companies have been able to export some products to Cuba, but the recent lifting of Cuba's terrorism designation could relax other restrictions. As VOA's Daniela Schrier reports, corporate heavy hitters are lining up to head across the Florida Straits - though experts urge caution.
Video

Video Kenya Launches Police Recruitment Drive After Terror Attacks

Kenya launched a major police recruitment drive this week as part of a large-scale effort to boost security following a recent spate of terror attacks. VOA’s Gabe Joselow reports that allegations of corruption in the process are raising old concerns about the integrity of Kenya’s security forces.
Video

Video Japan, China in Race for Asia High-Speed Rail Projects

A lucrative competition is underway in Asia for billions of dollars in high-speed rail projects. Cambodia, India, Indonesia, Malaysia Thailand and Vietnam are among the countries planning to move onto the fast track. They are negotiating with Japan and the upstart Chinese who are locked in a duel to revolutionize transportation across Asia. VOA Correspondent Steve Herman in Bangkok has details.
Video

Video Scientists: Mosquitoes Attracted By Our Genes

Some people always seem to get bitten by mosquitoes more than others. Now, scientists have proved that is really the case - and they say it’s all because of genes. It’s hoped the research might lead to new preventative treatments for diseases like malaria, as Henry Ridgwell reports from London.
Video

Video Bible Museum Coming to Washington DC

Washington is the center of American political power and also home to some of the nation’s most visited museums. A new one that will showcase the Bible has skeptics questioning the motives of its conservative Christian funders. VOA religion correspondent Jerome Socolovsky reports.
Video

Video Armenia and Politics of Word 'Genocide'

A century ago this April, hundreds of thousands of Armenians of the Turkish Ottoman empire were deported and massacred, and their culture erased from their traditional lands. While broadly accepted by the U.N. and at least 20 countries as “genocide”, the United States and Turkey have resisted using that word to describe the atrocities that stretched from 1915 to 1923. But Armenians have never forgotten.
Video

Video Afghan First Lady Pledges No Roll Back on Women's Rights

Afghan First Lady Rula Ghani, named one of Time's 100 Most Influential, says women should take part in talks with Taliban. VOA's Rokhsar Azamee has more from Kabul.
Video

Video Keeping Washington Airspace Safe Is Tall Order

Being the home of all three branches of the U.S. federal government makes Washington, D.C. the prime target for those who want to make their messages and ideas heard. Unfortunately, many of them choose to deliver them in unorthodox ways, including from the air, as a recent incident clearly showed involving a gyrocopter landing on the Capitol’s West Lawn. VOA's George Putic has more.
Video

Video New Brain Mapping Techniques Could Ease Chronic Pain

From Boulder, Colorado, Shelley Schlender reports that new methods for mapping pain in the brain are providing validation for chronic pain and might someday guide better treatment.
Video

Video Hope, Prayer Enter Fight Against S. Africa Xenophobia

South Africa has been swept by disturbing attacks on foreign nationals. Some blame the attacks on a legacy of colonialism, while others say the economy is to blame. Whatever the cause, ordinary South Africans - and South African residents from around the world - say they're praying for the siege of violence to end. Anita Powell reports from Johannesburg.

VOA Blogs