Showing posts with label Malaysia Airlines Search. Show all posts
Showing posts with label Malaysia Airlines Search. Show all posts
Wednesday
Australia says cost not a concern in MH370 search
PERTH - Australia said Wednesday cost was not a concern in the search for Malaysia Airlines Flight MH370, after the mini-sub plumbing the depths of the Indian Ocean for wreckage ended its ninth mission empty-handed.
Australia is leading the multinational search for the Boeing 777 which vanished on March 8 carrying 239 people, and is bearing many of the costs of the mission expected to be the most expensive in aviation history.
"There will be some issues of costs into the future but this is not about costs," Defense Minister David Johnston told reporters in Canberra.
"We want to find this aircraft. We want to say to our friends in Malaysia and China this is not about cost, we are concerned to be seen to be helping them in a most tragic circumstance."
China, whose citizens made up two-thirds of the passengers onboard the ill-fated flight, and Malaysia are among eight countries including Australia which have committed assets to the Indian Ocean search.
But with no confirmed sightings of debris from the flight on the surface so far, the search moved underwater nearly two weeks ago and is yet to find any sign of the aircraft.
Speaking to reporters in Canberra, Prime Minister Tony Abbott said searchers still believed the plane crashed in the Indian Ocean.
"Our expert advice is that the aircraft went down somewhere in the Indian Ocean where they have identified a probable impact zone which is about 700 kilometers (435 miles) long, about 80 kilometers wide," he said.
Abbott said based on the detections from what Australia still believed was the black box recorder, an underwater search area of just under 400 square kilometers (154 square miles) was being scoured.
"We haven't finished the search, we haven't found anything yet in the area that we're searching, but the point I make is that Australia will not rest until we have done everything we humanly can to get to the bottom of this mystery," he said.
Australia's Joint Agency Coordination Centre (JACC) said the device looking for the plane on the seabed had scanned more than 80 percent of its target zone and was now on its 10th dive.
"No contacts of interest have been found to date," it said.
The torpedo-shaped autonomous underwater vehicle called a Bluefin-21 is searching an area at least 4,500 meters (15,000 feet) deep defined by a 10-kilometre radius around a detection of a signal believed to be from the plane's black box heard on April 8.
'Reasonable hope'
A surface search involving up to 10 military aircraft and 12 ships was also scheduled for Wednesday, despite suggestions last week that this effort would be scaled down in coming days.
JACC later suspended the air search activities due to bad weather, which had resulted in heavy seas and poor visibility, but said the ships would continue their work.
The visual hunt covers an area totaling about 37,948 square kilometers, some 855 kilometes northwest of Perth, JACC said.
Johnston said Australia was tracking the cost of the mission, and if the Bluefin-21 failed to spot wreckage the search would move into a new phase, but said Canberra was committed to the task.
"We move to the next phase which is a more intensive single sideband sonar type program, I suspect, but let's take advice of the experts as to where we go forward," he said.
Johnston said Australia was talking with its partners about the assets needed for the next phase of the search for the plane which mysteriously diverted en route from Kuala Lumpur to Beijing.
Abbott said Australia would not abandon the search and let down the families of the six Australians and 233 other people onboard "by likely surrendering while there is reasonable hope of finding something."
"At the moment we are conducting an underwater search with the best equipment that is currently available," he said.
"If at the end of that period, we find nothing, we are not going to abandon the search. We may well re-think the search, but we will not rest until we have done everything we can to solve this mystery." — Agence France-Presse
source: gmanetwork.com
Thursday
Math wizards stand ready to join Malaysia Airlines search
RESTON - Math wizards who pinpointed the final resting place of a doomed Air France jet deep beneath the Atlantic stand ready to do so again for Malaysia Airlines Flight 370.
No one has yet asked Metron, a scientific consulting firm, to join the search for the missing Boeing 777, but that hasn't stopped it from getting a head start, using the few nuggets of data currently in the public domain.
"We're trying to get our hands on all the publicly available data so we can start doing an independent assessment," Van Gurley, head of Metron's advanced mathematics applications division, told AFP on Wednesday.
As that assessment evolves, "we'll provide it to anyone who's interested," added Gurley at Metron's head office in Reston, Virginia, a suburb of Washington.
Founded in 1982, with a staff of 170 that includes experts in applied mathematicians, Metron conducts highly specialized mathematical analysis for US national security applications, such as sonar systems.
But it has also developed a much-used search and rescue protocol for the US Coast Guard based on a theorem developed by early 18th century English statistician, philosopher and Presbyterian minister Thomas Bayes.
"It's a structured method that forces you to look at all the available information about a problem and then apply a confidence factor—how confident you are in any piece of information," Gurley said.
No single bit of data is ever thrown away, but as information is confirmed over time—say, when a speck in a satellite image turns out to be genuine debris—the probability that the target item is in a given spot evolves.
In the case of Air France Flight 447, which crashed into the Atlantic in 2009 with 228 on board, the target was its flight data recorder lying at the bottom of the ocean.
The French air accident investigation agency BEA turned to Metron to figure out the most likely spot where the so-called black box might be—successfully, it turned out when undersea drones recovered it in May 2011.
In that case, however, floating debris from the Airbus A330 had been located within a week and the search area was limited to a circle about 80 miles (130 kilometers) in diameter, Gurley said.
That's practically a flyspeck compared to the vastness of the remote section of the Indian Ocean where the Malaysian authorities said Wednesday that "122 potential objects" had been spotted by satellite in recent days—with not a single piece of confirmed debris since the jet went missing on March 8.
"Everybody wants to know where it is, and the answer is: we don't know," said Gurly, sitting alongside a vivid computer image of the entire Indian Ocean depicting the latest search zones west of Australia.
Overlaid on the screen are green triangles, each representing a ship at sea, provided by exactEarth, a Canadian firm that tracks ship movements worldwide in real time using satellite signals.
Just three triangles stood out in the search zone Wednesday, all of them Australian vessels combing the waters for debris.
Commercial shipping lanes to and from Australia lie well to the north, and they're not especially crowded. Gurley acknowledges that Bayesian theorem doesn't guarantee success.
While the Coast Guard regularly uses Bayesian theorem to find, say, fishermen lost at sea, it came up short when Metron was asked in 2007 to find missing US adventurer Steve Fossett, who had been out flying a small airplane in a mountainous corner of California.
A year passed before a hiker just happened upon some of Fossett's belongings, some distance from where he was presumed to be. Bones found nearby were confirmed through DNA tests to be his.
Asked what the odds of locating Malaysia Airlines Flight 370, let alone the cause of its disappearance, Gurley said the technical means to accomplish the mission is at hand, as difficult as it might be.
"The technology is available to get to the ocean bottom in this part of the world and search it," he said. "But it's an incredibly challenging task—and I think it's really going to come down to time, and will." — Agence France-Presse
source: gmanetwork.com
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