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447 in 2011. nearly two years after it went missing. locating debris at the bottom of the atlantic ocean. here in massachusetts, sonar helps identify and find debris like this submerged car. >> once we identify the target, we did this cross pattern and if we zoom in here and pull in that sonar file and went to that location and get a better high def image of the car. >> reporter: to get a real-time close-up image this remote vehicle, or rov, uses a map to locate the condition and then once there it picks up debris and bringing critical degrees and hopefully answers to the surface. >> joining m...
Reflexes of flight. >> the under water vehicle is gathering information to create a map of the sea floor. this time it's the bottom of a massachusetts reservoir. >> the side scan consists of on electronics package which is inside the vehicle. it's basically a computer that processes the data to make the pulse and to bring back the pulse and condition figure it into an image. >> it moves back and forth along the surface but some can dig deep into the ocean. sonar helps identify and find debris like the submerged car. >> once we identify the target, we do a cross pattern and we zoom in here. we ...
We did this cross pattern, so we pulled in the sonar file, went to the location and got a better high def image of the car. >> reporter: in the case of flight 370, an auv would face a number of obstacles that could stretch this entire process out for months or years. to get a real time close-up image, this remotely operated vehicle, or rov, uses a map to visit the location. >> it's pretty choppy so the visibility is quite reduced. >> and the depths of the indian ocean you'd probably use sonar if the water is deep and dark. >> yes. >> reporter: and then perhaps the camera? >> exactly. >> report...
Searches for things that don't belong beneath the sea. what is side scan sonar? >> well, side scan sonar is an acoustic technology that is based on reflections of sound rather than reflections of light. >> reporter: the autonomous underwater vehicle, an auv, is gathering information to create a map of the sea floor. this time, it's the bottom of a massachusetts reservoir. but it could be the depths of the indian ocean. >> the side scan consists of an electronics package which is inside the vehicle. it is basically a computer that processes the data to make the pulse and to bring back the pulse...