Page 2 - Sonar Device News Today

Powerful. no one knows how many tons of munitions are lying on the seabed. long estimates that there could be up to a million tons off the coast of nova scotia alone. but only a few of the locations have so far been identified. and its by no means clear which kinds of munitions are involved what. the situation is not confined to north america the first shots of world war two were fired at the polish port city of good danes on september first one nine hundred thirty nine. now polish scientists ar...

The bad weather posed another problem once again. and crews have not been able to recover any more bodies. so far, 30 bodies have been conferred. a u.s. ship is part of the recovery efforts. the "u.s.s. ft. worth" is there. david molko, with the objects found, unable to retrieve it. whats the hope for later on when the search resumes? >> reporter: yeah fredricka, when the sun comes up here in a few hour sunday morning, were hearing weather conditions are going to improve significantly, at least ...

Data that were working off of? do you think its accurate? people have questioned whether were out there searching in the right area. >> reporter: look, indeed, don. and this is not an exact science. we have to understand that. and we must remember with air france 447, it was 18 missions with the -- the side-scan sonar device that they used in that particular search. and it was found about six miles from where they thought it was. so there is a precedent for this not being an exact science. i thi...

And angus houston were very confident that these pings would lead us straight to the wreckage. what does that say about the data that were working off of? do you think its accurate? people have questioned whether were out there searching in the right area. >> reporter: look, indeed, don. and this is not an exact science. we have to understand that. and we must remember with air france 447, it was 18 missions with the -- the side-scan sonar device that they used in that particular search. and it ...

Shouting. this was delayed. these fed up families, you see them here? they stormed out of this briefing. what are the challenges here? earlier the head said the sonar device will help move the searchers step further but he stopped short of pinning all hopes on the suv. >> i would caution you that the deployment will result in the detection of aircraft wreckage. however, this is the best lead we have and it must be pursued vigorously. >> she is back on a boat for this live demonstration of the so...

That this is according to data that was shared by the malaysians with u.s. investigators so there could be more information were just not privy to. but the information shared was just the co-pilots phone. and we know that standard operating procedure is for passengers and crew to turn off their cell phones when a flight takes off. why was the co-pilots phone turned on? >> pamela brown reporting with the latest news for us. just ahead well dig deeper into this new phase of the hunt for flight 3...

>> numerous transmissions recorded, which gives us the high degree of confidence that this is the black box from the missing flight. what we are now doing, given the signal from the black box is rapidly fading, what we are now doing is trying to get as many detections as we can so that we can locate -- so that we can narrow the search area to as small an area as possible. >> the prime minister added once the search area is narrowed down, a sonar device will be deployed. stay with cnn for the lat...

With the sonar type system you could actually map much larger areas. >> david miller is the president of a company that helps to map the worlds oceans and seas. >> despite the fact that 70% of the world is covered by ocean, only 5% of our oceans have been explored to date. >> this is a side constant sonar device, tossed to the water off san diego. to give us a look at what is under our boat. >> all these little rescctangul spots? >> this is shallow water, what can you see in the deep, this amazi...

>> reporter: all of the searching so far up in the south china sea over the malacca straits into the edge of the southern ocean has been part of just the first search. the search for one solid clue to tell them where to look underwater. the search above water can be fairly fast. were off the coast of australia now, theyve been moving through those areas over there that theyve defined and redefined and moved them around. they can search maybe 90,000, maybe 100,000 square miles in a day because th...

Just the first search, the search for one solid clue to tell them where to look under water. the search above water can be fairly fast. were off the coast of australia now. theyve been moving through those areas over there. theyve defined and redefined them and moved them around. they can search maybe 90,000, 100,000 square miles a day in one of those areas because they can fly over it and look. but when you talk about diving down into the water, when you talk about getting deeper down under the...