Page 26 - Salinity News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Across queensland. at this point, 75 kilometer per hour winds. look at the satellite imagery, four days ago, three days ago, two days ago. it's meandered over this region, produced tremendous amount of rainfall. about 31 inches of rainfall that has come down offshore. while around cooktown around the order of 150 millimeters. 6 inches has caused damage to roads. the storm system on the return here. so more rainfall expected. and we know, of course the great barrier reef stretches here the largest reef system in the world. about 900 different islands dot this region. 3,000 different reefs dot t...

Salinity and the sound walls on which to bounce the signals. and hopefully we have a shot because if the amplitude is strong we should be close to it. >> you know, jim, we are still awaiting the information from the bluefin's first full mission after some setbacks. does it seem that the bluefin is capable of doing the job now? >> oh, i think there is no question of whether or not it is capable. and the reading, what it is doing, giving itself enough time to analyze it properly and exercise a lot of patients. >> arthur rosenberg, they are searching in an area that has a tremendous amount of oce...

Salinity, temperature, and if sound is coming up here, and it hits this layer. because this is slower, it could essentially bend that sound and make it go to a different angle than it was a moment ago, and then it may come out where you don't expect it at all. also, in some cases, it may come up, hit the layer and start ping-ponging between the top and the bottom of it. and by some theories, particularly with lower sounds, it may go many, many, many miles before it comes out. this may explain why a pinger that shouldn't be heard more than three miles away is being located in a range of some 17...

There have also been attempts to put in buoys to see if they can listen to anything. but any listening device in the water here is going to face one real challenge out there at least. the challenge is what's called the sound fixing and ranging layer. this is about a half mile down. it's a naturally occurring phenomenon. it's a layer where sound moves less quickly than it does in the ocean below or above it. a lot of different reasons. salinity, water pressure, temperature. but the results are something really to contend with. if sound is coming up here and it hits this line, because this is sl...

Reasons. mostly the pressure, temperature, and the salinity of the ocean. the audio sounds are moved around under water and it plays some tricks. it's more important less the frequency, it's more the cadence. it's more the unique manmade sound of it. and it wouldn't be unusual to detect it at a lower frequency, which is the 33. >> hey, chris, let's listen to australian prime minister tony abbott here who continues to afu affirm those pings are starting to fade. >> we're now getting to the stage where the signal from what we are very confident is the black box is starting to fade. and we are ho...