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High-density Airborne Lidar Sensor Ideal for Challenging Coastal Survey of Sylt

Arctia-Meritaito has efficiently produced a seamless digital terrain model of land and water along the shallow coastal areas of the German island of S. ....

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Using Machine Learning to Derive Benthic Habitat Maps

The South African Council for Geoscience recently launched an initiative to optimize marine geophysical data collection in South African waters. The m. ....

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Seabed Selects Velodyne Sensors for Mobile Mapping System

Seabed B.V., which specializes in high quality equipment for offshore surveying and dredging, has selected Velodyne Lidar’s Puck sensors fo. ....

Noord Holland , Erich Smidt , Elice Collewijn , Velodyne Lidar , Seabed Lidar , Velodyne Lidar Puck , Velodyne Puck , Mobile Mapping , நூற்த் ஹாலண்ட் , எரிச் ஸ்மிட்ட் ,

CNN CNN Special Report April 17, 2014 03:30:00

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 what s 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 it on a vehicle and it has other components and that s where the challenge is. let s look at what the data looks like when you get an image of this sound. that s pretty much what you are doing, right? right. we have been building a map over the course of the day here. you can see we have done this lawn mower pattern and going back and forth. here s where we are now and we will add to it as we go. in realtime we are able to see where we are, reconstruct the plan on the fly based on what we ....

Sea Floor , Primary Search Mechanism , Sonar Imagery , Down Deep , Real Time , Lawn Mower Pattern ,

CNN CNN Newsroom April 15, 2014 13:36:00

Its job, not to listen for pings but to map the ocean floor and look for debris. to do that, it can use two different payloads, which have to be swapped out. this particular payload section is the acoustic section. reporter: first the bluefin uses side scan sonar and a multibeam echo sounders that bounce sound waves off the ocean floor that aren t natural. if picked up, the bluefin can be brought to the surface. the sonar technology is taken out and high-tech cameras are put in. it s a high definition black and white camera capable of three frames per second. reporter: together they can create a detailed mosaic of the ocean floor. the operators are confident if wreckage from flight 370 is down there, the bluefin will find it. the technology on the auv is good enough that we can resolve something that is, as small as a microwave, perhaps even smaller. reporter: but it s not an easy or fast process. it takes the vehicle two hours to dive to the bottom. 16 hours to search as a ....

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