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JAMSTEC has proposed an operation of multiple AUVs using an ASV (Autonomous Surface Vehicle) to improve survey efficiency. For this purpose, an ASV “MAINAMI” with a length of 6 meters has been developed since 2013. The vehicle is equipped with an acoustic communication device and a satellite one, in order to relay information between an AUV and operators on a ship or on land. In February 2016, its...
Japan Agency for Marine Earth Science and Technology (JAMSTEC) has started a new project “submarine resource research project” in April 2011. We decided to advance the development of work class ROV “KAIKO Mk-IV” as fourth KAIKO's vehicle applied for submarine resource exploration. “KAIKO Mk-IV” construction started in April 2011 and it completed in March 2013. Then, its sea trials have been carried...
A synthetic aperture sonar gathers echoes from large area of seafloor per a ping, therefore the sonar needs wider width of the beam than Side scan sonar. But if the elements of the projector is just one element, it have to be small to widen the beam, and must be low sensitivity. One solutions to raise the sensitivity of the sonar is to use array as a receiver. The array is not only necessary for high...
JAMSTEC has developed and operated several AUVs (Autonomous Underwater Vehicle) as platform for scientific investigation and explorations of seabed mineral resources [1–4]. Conventionally, a support vessel monitors only one AUV during its whole dive for safety and positioning. We propose an operation of multiple AUVs using an ASV (Autonomous Surface Vehicle) to improve survey efficiency. For this...
We have developed the profiler for under water FSO that can measure many standard ocean profile and optical transmittance with blue, green and red light through water. After the three sea experiment, we confirmed next results.
JAMSTEC has operated autonomous underwater vehicles (AUVs) for scientific survey of seabed mineral resources. Conventionally, the number of AUVs the support vessel can track is limited to one during operations. However, it takes a long time for one AUV to survey a large target area. To solve this problem, an autonomous surface vehicle (ASV) has been developed. The ASV, instead of the support vessel...
Japan Agency for Marine-Earth Science and Technology (JAMSTEC) has been developing three autonomous underwater vehicles (AUVs). And one of them is “Otohime”. The aim of this vehicle is the underwater environment research and the seabed mineral resources exploration. One of main missions is to get the detailed seafloor map. So some new technologies were applied to this vehicle in order to achieve such...
Exploration and mining of natural resources in the region of seabed are needed for lasting economic growth, because an abundance of natural resources, including rare metal, is in Japan's exclusive economic zone (EEZ). The cost down of exploration and mining is an important issue for industrialization. It is well known that unmanned and/or autonomous platforms for exploration are effective to reduce...
Since October 2010, JAMSTEC has developed two autonomous uderwater vehicles (AUVs); a cruising-AUV “Jinbei” and a working-AUV “Otohime” (Fig.1). Their major purposes are to observe underwater CO2 distribution around carbon dioxide capture and storage field, and to explore seabed mineral resources in Japan's EEZ. The cruising-AUV performs wide area survey with sonars and chemical sensors. According...
Autonomous Underwater Vehicle “JINBEI”, constructed in 2012, is a cruising type AUV with a weight of 2 ton and a length of 4.0m. The major purposes are observation of underwater CO2 distribution in deep sea and exploration of seabed mineral resources. It has four rear-thrusters, two mid-ship azimuthal thrusters, and a rear X-rudder. The AUV is equipped with three main sensors; a multi-beam echo sounder,...
JAMSTEC has tried a feasibility study of carbon dioxide capture and storage (CCS) using geobiological processes in the deep subsurface. We expect a biological CO2 turnover. Japan Society for the Promotion of Science (JSPS) funded this project. We found that a hydrocarbon system associated with lignite-coalbed is buried more than 2,000 meters below the seafloor off the Shimokita Peninsula in 2006....
Japan Agency for Marine Earth Science and Technology (JAMSTEC) has started a new project “submarine resource research project” in April 2011. We decided to advance the development of work class Remotely Operated Vehicle (ROV) applied for submarine resource exploration. Its construction started in April 2011 and its will be completed in March 2013. This paper describes about the outline of the development...
JAMSTEC has developed a cruising autonomous underwater vehicle (AUV) and a working AUV for observations of carbon dioxide (CO2) in deep sea and explorations of underwater minerals since 2010. This paper concentrates topic on the former AUV. The AUV named “Jinbei” is 4 meters long and 2 tons in weight. Its propulsion is four rear-thrusters and two mid-ship thrusters with azimuthal control. It has a...
Japan Agency for Marine-Earth Science and Technology (JAMSTEC) has been developing two types of AUVs; a cruising-AUV “Jinbei” and a working-AUV “Otohime”, since October 2010. The main missions of them are to survey the environment near seafloor surface where Carbon dioxide capture and storage, to explore for seabed mineral resources and to make the detailed seafloor map using seafloor pictures. In...
Recently autonomous underwater plat forms are expected as efficient ocean research platforms which are equipped with physical and chemical sensors, acoustical sensors, and electro-magnetic sensors to obtain the earth information for earth environment researches, ocean resources explorations and so on. Increasing survey range of the platforms makes an increase of the consumption energy. Deep sea seismic...
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