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, Steven L Herman is the Voice of America Asia correspondent.

You May Like

Multimedia Obama, Modi Break Nuclear Deal Deadlock

Impasse over liability issues had been stalling bilateral civilian nuclear cooperation; deal reached at start of US president's three-day visit to India More

WHO's Late Efforts in Tackling Ebola Highlight Need for Reform

Health experts debate measures to reform agency’s response to global public health emergencies in special one-day session on deadly outbreak More

One Tumultuous Year in Power for CAR's President

As sectarian violence raged across Central African Republic, interim President Catherine Samba-Panza has Herculean task: to end civil war and put country back on right track 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.
Worldwide Photo Workshops Empower Youthi
X
Julie Taboh
January 23, 2015 11:08 PM
Last September, 20 young adults from South Sudan took part in a National Geographic Photo Camp. They are among hundreds of students from around the world who have learned how to use a camera to tell the stories of the people in their communities through the powerful medium of photography. Three camp participants talked about their experiences recently on a visit to Washington. VOA’s Julie Taboh reports.
Video

Video Worldwide Photo Workshops Empower Youth

Last September, 20 young adults from South Sudan took part in a National Geographic Photo Camp. They are among hundreds of students from around the world who have learned how to use a camera to tell the stories of the people in their communities through the powerful medium of photography. Three camp participants talked about their experiences recently on a visit to Washington. VOA’s Julie Taboh reports.
Video

Video US, Japan Offer Lessons as Eurozone Launches Huge Stimulus

The Euro currency has fallen sharply after the European Central Bank announced a bigger-than-expected $67 billion-a-month quantitative easing program Thursday - commonly seen as a form of printing new money. Henry Ridgwell reports for VOA from London on whether the move might rescue the eurozone economy -- and what lessons have been learned from similar programs around the world.
Video

Video Nigerian Elections Pose Concern of Potential Conflict in 'Middle Belt'

Nigeria’s north-central state of Kaduna has long been the site of fighting between Muslims and Christians as well as between people of different ethnic groups. As the February elections approach, community and religious leaders are making plans they hope will keep the streets calm after results are announced. Chris Stein reports from the state capital, Kaduna.
Video

Video As Viewership Drops, Obama Puts His Message on YouTube

Ratings reports show President Obama’s State of the Union address this week drew the lowest number of viewers for this annual speech in 15 years. White House officials anticipated this, and the president has decided to take a non-traditional approach to getting his message out. VOA White House correspondent Luis Ramirez reports.
Video

Video S. Korean Businesses Want to End Trade Restrictions With North

Business leaders in South Korea are calling for President Park Geun-hye to ease trade restrictions with North Korea that were put in place in 2010 after the sinking of a South Korean warship.Pro-business groups argue that expanding trade and investment is not only good for business, it is also good for long-term regional peace and security. VOA’s Brian Padden reports.
Video

Video US Marching Bands Grow Into a Show of Their Own

The 2014 Super Bowl halftime show was the most-watched in history - attracting an estimated 115 million viewers. That event featured pop star Bruno Mars. But the halftime show tradition started with marching bands, which still dominate the entertainment at U.S. high school and college American football games. But as Enming Liu reports in this story narrated by Adrianna Zhang, marching bands have grown into a show of their own.
Video

Video Secular, Religious Kurds Face Off in Southeast Turkey

Turkey’s predominantly Kurdish southeast has been rocked by violence between religious and secular Kurds. Dorian Jones reports on the reasons behind the stand-off from the region's main city of Diyarbakir, which suffered the bloodiest fighting.
Video

Video Kenya: Misuse of Antibiotics Leading to Resistance by Immune System

In Kenya, the rise of drug resistant bacteria could reverse the gains made by medical science over diseases that were once treatable. Kenyans could be at risk of fatalities as a result if the power in antibiotics is not preserved. Lenny Ruvaga has more on the story from Nairobi.
Video

Video Solar-Powered Plane Getting Ready to Circumnavigate Globe

Pilots of the solar plane that already set records flying without a drop of fuel are close to making their first attempt to fly the craft around the globe. They plan to do it in 25 flying days over a five month period. VOA’s George Putic reports.
Video

Video How Experts Decide Ethiopia Has the Best Coffee

Ethiopia’s coffee has been ranked as the best in the world by an international group of coffee connoisseurs. Not surprisingly, coffee is a top export for the country. But at home it is a source of pride. Marthe van der Wolf in Addis Ababa decided to find out what makes the bean and brew so special and how experts make their determinations.
Video

Video Yazidi Refugees at Center of Political Fight Between Turkey, Kurds

The treatment of thousands of Yazidis refugees who fled to Turkey to escape attacks by Islamic State militants has become the center of a dispute between the Turkish government and the country's pro-Kurdish movement. VOA's Dorian Jones reports.
Video

Video World’s Richest 1% Forecast to Own More Than Half of Global Wealth

The combined wealth of the world's richest 1 percent will overtake that of the remaining 99 percent at some point in 2016, according to the anti-poverty charity Oxfam. Campaigners are demanding that policymakers take action to address the widening gap between the ‘haves’ and the ‘have nots’, as Henry Ridgwell reports for VOA from London.

Circumventing Censorship

An Internet Primer for Healthy Web Habits

As surveillance and censoring technologies advance, so, too, do new tools for your computer or mobile device that help protect your privacy and break through Internet censorship.
More

All About America

AppleAndroid