Lawn Mower Pattern News Today

S so its not the scenario where the plane landed gentle and sank and went in one piece to the bottom. there should have been massive amounts of debris. its a huge puzzle, why havent we found floating debris, thats a great question. >> what will this search look like? last time, it was the one blue fin 21, doing the lawn mower pattern, up and down, up and down, hour after hour, are we going to see a single submersible here, more than one? whats it going to look like, david? >> yeah, i think, vict...

>> is it easier to do deeper in or higher up? >> actually, the image comes up good when youre deep because you have the nice platform and the sonar image can be really crisp. the challenge is getting the sonar down that deep. that is where the really challenge is. >> lets go inside and take a look at what the data looks like when you basically get an image of the sound. that is pretty much what youre doing here, right? >> right, so we have been building up a map over the course of the day. and y...

This is multibeam. they are using side-scan sonar as the primary search mechanism. it will emit sound. as it bounces off of the sea floor, the sonar receives that sound and uses the reflection from the sea floor to build an image of whats on the sea floor is. >> is it easier to do deeper in or higher up. >> it comes out good when you are deep. you have a nice stable platform and the sonar imagery can be crisp. the challenge is getting that sdoe sonar down deep. that is difficult. you have to put...

That graphically represents the signal from the beacon. then a team on deck, a vehicle scans the sea floor, using a lawn mower pattern. >> this vehicle can go deep in the ocean, this one, recovered the block box, all of the. >> with battery life ticking down. every moment in critical. >> without a confirmed