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Observation of Deep Seafloor by Autonomous Underwater Vehicle

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Title Observation of Deep Seafloor by Autonomous Underwater Vehicle
 
Creator Ura, Tamaki
 
Subject AUV
Sea Floor
Mosaic
Deep Sea
Snow Crab
 
Description 1028-1033
The AUV (Autonomous Underwater Vehicle) is a dynamically stable platform
for visual and acoustic observation of the deep sea floor. It can automatically
take images of seafloor in high resolution. Two examples of observation carried
out by the AUVs r2D4 and Tuna-Sand show significant advantage of the AUV and
give us various ideas of AUV application. The first example is the dive to
Kuroshima Koll by the hovering type AUV Tuna-Sand in June 2010 following the
results of survey by the cruising type AUV r2D4 in January 2010. AUV Tuna-sand
brought us photo images of the seafloor where unusual features in the side
scanning sonar image captured by the AUV r2D4 were found. Second example is
twelve dives over the gas-hydrate field in Toyama bay and took about 7,000 pictures from
2.2 meters above the floor in 1,000 meter depth. One of the mosaic shows that
there are 3,500 snow crabs (Chionoecetes japonicas) in a 40 meters by 20 meters
area.


 
Date 2014-01-10T11:58:08Z
2014-01-10T11:58:08Z
2013-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25476
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.42(8) [December 2013]