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#RememberingMH370: MH370 went down in Southern Indian Ocean (Page 193)

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awesomegurti

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awesomegurti

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Posted: 19 March 2014 at 10:54pm | IP Logged
WASHINGTON " Even if searchers are fortunate enough to spot floating debris in the ocean west of Australia from the missing Malaysia Airlines jet, it would be only a modest step in locating the rest of the Boeing 777, according to oceanographers and recovery experts. And only then could they dig into the question of why it crashed.

Almost two weeks after a crash, there is certain to be less of the debris on the surface, and what remains is more dispersed and farther from the clues that investigators really want, in the wreckage that has sunk beneath the waves, experts say.

The delay in finding any wreckage on the surface will "create a cone of uncertainty, which is going to be bigger with time," said Luca Centurioni, a researcher at the Scripps Institution of Oceanography in San Diego and the director of the Global Drifter Program there. "The more time goes by, the more difficult it will be to try to go back to the point of impact with the ocean."

The amount of debris and degree of dispersion would depend in part on the circumstances of a crash. "A gentle landing on a smooth sea with mild currents keeps the debris field more intact," David G. Gallo, director of special projects at the Woods Hole Oceanographic Institution, said in an email. "A high-velocity impact or midair breakup on a stormy sea will scatter objects much more."

In the case of Air France Flight 447 " which came down in the equatorial Atlantic in June 2009 while traveling from Rio de Janeiro to Paris " searchers found debris after five days, and experts estimated that the impact site was 15 miles away. It turned out to be 30 miles away, and in a different direction, said Michael J. Purcell, the principal engineer at Woods Hole, who spent months on that search. If the Air France case is any guide, Malaysia Airlines debris could have drifted hundreds of miles.

Median ocean current speed is about a foot per second, said Mr. Centurioni, which comes to about 16 miles a day. The tropics are a bit slower; the Air France wreckage was moving at about 10 miles per day, Mr. Purcell said. Average speed at the site of any Malaysia Airlines crash would depend on where that airliner went down. Some debris would be pushed more by wind than current, and the wind could be moving in the same direction as the current, or against it.

Some parts of airplanes, like seat back cushions, are designed to float. Aluminum parts with air trapped inside will tend to sink in rough seas. Planes like the Boeing 777, the type in the Malaysia flight, or the Airbus A330, in the case of the Air France crash, make major use of composite materials, and some of those are in the form of a honeycomb using light materials with air trapped inside. Those parts will float for some time, as the tail of Air France Flight 447 did, and the tail of the American Airlines A300 jet that crashed shortly after takeoff from Kennedy International Airport in November 2001.

The searchers, flying in various aircraft but notably in airplanes designed to hunt enemy submarines, are using infrared scanners, which detect minute temperature differences between the water and debris, as well as radar. They make low passes at hundreds of miles per hour.


Graphic | The Search Area West of Australia New computer models of possible flight paths suggested that the plane may have gone down in the southern Indian Ocean when it ran out of fuel.
If the airplane searches locate floating debris, and oceanographers calculate where it originated, the next step would be to use robot submarines to scrutinize the ocean floor. Mr. Purcell said the Woods Hole drone submarines, like the Remus 6000, travel about four miles per hour, covering a little less than a mile in width if the sea floor is smooth. They were not built with this purpose in mind. (In fact, this week the Remus 6000 was gathering clam larvae, Mr. Purcell said.)

In search work, the submarines follow a pattern like a lawn mower, laboriously tracing back and forth. The search area is now over two million square nautical miles, but would have to be narrowed to about 5,000 square miles before it would be sensible to use the submarines, he said.

The cockpit voice recorder, important in any investigation and crucial when a hijacking or other crime is suspected, would probably not be useful, one investigator said, because it is a two-hour loop, and the plane flew for hours after leaving its planned route. The boxes originally captured 30 minutes, on a loop of audiotape, but in 1999 the Federal Aviation Administration endorsed the idea of going to two hours. The recording is now on microchips.

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malavikajoshy

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Posted: 19 March 2014 at 11:15pm | IP Logged
praying  for MH370

rev4eva

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rev4eva

Joined: 15 May 2010

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Posted: 20 March 2014 at 1:46am | IP Logged
Statement from AMSA Emergency Response Division General Manager John Young:

The Australian Maritime Safety Authority is coordinating the search for the missing Malaysia Airlines aircraft, with assistance from the Australian Defence Force, the New Zealand Air Force and the United States Navy.

AMSA's Rescue Coordination Centre Australia has received satellite imagery of objects possibly related to the search for the missing aircraft, flight MH370.

RCC Australia received an expert assessment of commercial satellite imagery on Thursday.

The images were captured by satellite. They may not be related to the aircraft.

The assessment of these images was provided by the Australian Geospatial-Intelligence Organisation as a possible indication of debris south of the search area that has been the focus of the search operation.

The imagery is in the vicinity of the search area defined and searched in the past two days.
Four aircraft have been reoriented to the area 2500 kilometres south-west of Perth as a result of this information.

A Royal Australian Air Force Orion aircraft arrived in the area about 1.50pm (10.50am Malaysian time)

A further three aircraft have been tasked by RCC Australia to the area later today, including a Royal New Zealand Air Force Orion and United States Navy P8 Poseidon aircraft.

The Poseidon aircraft is expected to arrive at 3pm (12pm Malaysian time). The second RAAF Orion is expected to depart RAAF Base Pearce at 6pm (3pm Malaysian time).

The New Zealand Orion is due to depart at 8pm (5pm Malaysian time).

A RAAF C-130 Hercules aircraft has been tasked by RCC Australia to drop datum marker buoys.

These marker buoys assist RCC Australia by providing information about water movement to assist in drift modelling. They will provide an ongoing reference point if the task of relocating the objects becomes protracted.

A merchant ship that responded to a shipping broadcast issued by RCC Australia on Monday is expected to arrive in the area about 6pm(3pm Malaysian time).

Royal Australian Navy ship HMAS Success is en route to the area but is some days away from this area. She is well equipped to recover any objects located and proven to be from MH370.

The focus for AMSA is to continue the search operation, with all available assets.

The assets are searching for anything signs of the missing aircraft.

Weather conditions are moderate in the Southern Indian Ocean where the search is taking place. Poor visibility has been reported.

AMSA continues to hold grave concerns for the passengers and crew on board.

rev4eva

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rev4eva

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Posted: 20 March 2014 at 1:48am | IP Logged

-Muskii-

IF-Sizzlerz

-Muskii-

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Posted: 20 March 2014 at 2:03am | IP Logged

Australia is investigating two objects seen on satellite images that could potentially be linked to the missing Malaysia Airlines plane, officials say.

Planes and ships from Australia, New Zealand and the US were heading to the area 2,500km (1,550 miles) south-west of Perth to search for the objects.

The largest appeared to be 24m in size, maritime authorities said, but warned they could be unrelated to the plane.

Australia has been searching in the southern Indian Ocean for the aircraft.

Malaysia Airlines flight MH370 was flying from Kuala Lumpur to Beijing on 8 March when it lost contact with air traffic controllers. A total of 239 people were on board.

Twenty-six nations have been involved in a major search for the missing plane, which Malaysia says was intentionally diverted.

Investigators have been scrutinising the backgrounds of both the crew and the passengers, but have so far identified no evidence of terror or other potentially relevant links.

A number of sightings of possible debris have been investigated in the course of the search but so far none have proved to be linked.

Amsa imageAustralian authorities said one of the objects was 24m in size
Amsa imageThe objects were seen on satellite images and assessed by experts
A Royal Australian Air Force pilot of an AP-3C Orion maritime patrol aircraft scans the surface of the sea near the west of Peninsula Malaysia in this handout picture by the Royal Australian Air Force on 17 March 2014Australia was asked by Malaysia earlier this week to lead the southern part of the search
A diagram showing the search area for Malaysia Airlines Flight MH370 in the southern Indian Ocean is seen during a briefing by John Young, general manager of the emergency response division of the Australian Maritime Safety Authority (AMSA), in Canberra on 20 March 2014Amsa said ships and planes were heading south-west of Perth to try to find the objects

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-Hina--Cutyee

sahil70

IF-Addictz

sahil70

Joined: 10 March 2011

Posts: 95061

Posted: 20 March 2014 at 2:40am | IP Logged
really dont understand why cant they check and verify first before reporting/speculating about any debris spotted as possibly related.Stern Smile

just imagine the rollercoaster of  emotions of the family members  with this kind of reporting

sahil70

IF-Addictz

sahil70

Joined: 10 March 2011

Posts: 95061

Posted: 20 March 2014 at 2:43am | IP Logged
KUALA LUMPUR: Australian authorities believe that two objects - one as wide as 24 meters - picked up by satellites in the southern Indian Ocean were credible enough' clues to divert a full-scale search for Flight MH370 to the area.

The Australian Maritime Safety Authority (AMSA) on Thursday, however, cautioned that a search for these objects at sea was a difficult task and could turn up negative, as shown in past experiences.

"The objects are relatively indistinct. The indication to me is of objects that are of a reasonable size and probably awash with water and bobbing up and down over the surface," AMSA emergency response division general manager John Young Young said in a press conference aired live today.

Asked if there were any form of markings' that indicate that the objects could be from an aircraft, Young said that the imagery was not that precise', describing one of the images as simply a "blob".

The discovery of the two objects marks a potential breakthrough in the search for the aircraft and its 239 passengers and crew.


Australian Prime Minister Tony Abbott announced in parliament this morning that this was "new and credible information".

This development came after Australian commercial satellites captured images of several large objects in the ocean off Western Australia, and expert assessment of the satellite imagery by Australian Geospatial-Intelligence Organisation decided that it was credible enough to warrant a full-scale search by aircraft and ships.

So far, four aircrafts have been dispatched to the area, which is some 2,500 km south-west of Perth.

One Australian aircraft is already at the location. The three others aircraft is also being been deployed - including a New Zealand Air Force Orion and a US Navy P8 Poseidon aircraft. Another Australian Orion is scheduled to depart later in the evening. A merchant ship is also expected to arrive at the area.

An Australian C-130 Hercules aircraft has been tasked by RCC Australia to drop datum marker buoys, which can provide information about water movement to assist in drift modeling.

"They will provide an ongoing reference point if the task of relocating the objects becomes protracted," said AMSA.

Meanwhile, Young said that this was the best lead' so far, though the results can only be confirmed when the objects are sighted up close'.

"This is a lead, this is probably the best lead we have right now, but we need to get there, to find them, see them, and asses them, to see whether it is meaningful or not," Young said.

AMSA said weather conditions at the area are reportedly moderate while visibility was poor'.




on what basis ?  Confused





Edited by sahil70 - 20 March 2014 at 2:41am

rs12345

IF-Stunnerz

rs12345

Joined: 27 December 2010

Posts: 25070

Posted: 20 March 2014 at 3:56am | IP Logged
i hope the passengers and crew return safely to there homes.

Edited by rs12345 - 20 March 2014 at 3:59am

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