Page 28 - Salinity News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Salinity and has the effect of attenuating, bending, sometimes 90 degrees of sound waves. it's quite possible for sound to travel great distances, but be very difficult to hear near the surface of the ocean, for instance. so it is a markedly different environment to what you see with sound traveling through air and it's a very specialized skillset that is being employed at the moment. in terms of the towed pinger locator, we're expecting around a 2,000 yard detection range, so you can picture now moving 3 knots through the water or 5 kilometers per hour with a detection range of around 2 miles...

Or is it within 100 miles? >> what i might do is ask one of the subject matter expert, commodore levy to address your question. and you might just add a little bit on some of the challenges associated with the work that is being done underwater. >> i might just open with some of the challenges we face. as you've heard, most of the -- all of the detect as the are happening at the most are acoustic. you can think of it essentially as deployed microphones listening for sound. and on the towed pinger locator, that's sitting approximately 3,000 meters below the surface of the ocean. unlike in air w...

Layers and salinity layers. all that has to do with the propagation of sound in it. it may get caught in the layer and duct. these are present the atmosphere, as well. in the water, people who deal with sound propagation and water are acutely aware of salinity and temperature levels. >> even if this is a ping, or a click if you listen to it, finding the plane and wreckage could be a completely different challenge depending upon depths, right? >> and how did this thing hit the water? did it hit the water in a sully sullenberger hudson river thing where it floated a while and sank? if so it will...

All that work. thousands of homes are flooded. 3 million acres of farm land are under water in the south. that's the damage we can see in shots like that. >> that's right. because in louisiana beneath the surface of the swollen mississippi sensitive oyster beds are being threatened by the on rush of water. >> they have to keep a certain salinity, a certain type of silt in there. and it is very difficult when you talk about this type of flooding. one oysterman says it is like mother nature is waterboarding us. pretty strong language. rob marciano is in port allen this morning. we were down th...

good morning. welcome. it's thursday morning, may 19th. we have a lot of news this morning including some breaking news. let's begin with that breaking news. the resignation of dominique strauss-kahn as head of the international monetary fund. this move comes just before a bail hearing today in new york. we're seeing this mug shot for first time. the former imf chief is facing sexual assault charges for allegedly attacking a maid in his manhattan hotel room. he says he is not guilty. resigning from the imf so he can defend himself fully. >> here is part of a statement he released. ...