Flight 370: Pulses detected again

[brooklynite]

Source: CNN

Ocean Shield has been able to reacquire the signals that are consistent with airplane locator beacons on two more occasions -- both on Tuesday, said Angus Houston, head of the Australian-led search effort on Wednesday.

Ocean Shield has now detected four transmissions in the same broad area.

"I believe we are searching in the right area," he said.

Read more: http://www.cnn.com/2014/04/08/world/asia/malaysia-airlines-plane/index.html?hpt=hp_t1

[Warpy]

1. I do hope side can sonar is being employed

to spot wreckage along the floor. It's really the only way to be certain where divers should be sent down.

That was how they finally found the Titanic.

[defacto7]

2. I hope they hurry....

but the really big problem is that a jet has very little bulk or mass to detect outside of the box. On impact it would have practically exploded and been torn apart. If those parts have sunk, they are extremely deep and the Indian Ocean is huge. It's hard to put into perspective.

I think the boxes are their only shot and I would be surprised if they could find such wreckage. The Titanic was a huge piece of steel in two pieces. Comparing the two is like comparing a plastic teacup to a tank.

[Warpy]

5. Well, it depends on how it hit

many pieces would be large enough to be detectable, like the engines. Side scan can pinpoint them and if they're using a program to remove the water column, it looks almost like a photograph.

Yes, I spent time at Woods Hole.

I don't think the boxes will tell them much since it's likely everybody was dead for hours by the time it went down.

[defacto7]

6. I just read that there is debris in the area of the pings found by China

http://news.xinhuanet.com/english/world/2014-04/09/c_133248559.htm

Who knows?

[Baclava]

4. Divers? - you mean robots - the water depth there is around 15,000 ft

the side-scan sonar the submersible they are talking about using only has a range of a couple hundred yards on each side

they'll really need to narrow the search area first

[Nihil]

8. Excellent graphic!

Thanks for posting that illustration of the nature of the technical difficulties of this case.

[Baclava]

9. i am into graphics - check this video out of a sperm whale diving the deep

can U say Vertigo?

http://422.com/work/light-the-ocean-deep-diving-sperm-whele

[alp227]

3. international coverage:

UK/BBC: http://www.bbc.com/news/world-asia-26950387

Australia/ABC: http://www.abc.net.au/news/2014-04-09/mh370-more-signals-detected/5378012

Malaysia/New Straits Times: http://www.nst.com.my/latest/font-color-red-mh370-tragedy-font-two-more-pings-detected-1.557762

[jakeXT]

7. I'm surprised they are 4kHz off

Experts said they were not concerned that the pings were detected at a frequency of 33.331 kHz, instead of the design frequency of 37.5.

"We're listening a little bit on either side of that (37.5 kHz) because pinger (frequencies) do drift," Dean said.

The pingers did have the same pulse rate as the MH370 pingers — one ping per second. Searchers "believe the signals to be consistent with the specification and description of a flight data recorder," Houston said.

http://edition.cnn.com/2014/04/08/world/asia/malaysia-airlines-ping-hunt/?hpt=hp_t1