Development of AUV for scientific observation

JAMSTEC has tried a feasibility study of carbon dioxide capture and storage (CCS) using geobiological processes in the deep subsurface. We expect a biological CO
₂
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. In this project, they need to perform pre-survey and post-survey of CO
₂
distribution around the target seafloor. And they also carry out detail survey of the bathymetry in this area. To perform above things, two AUVs were required. One is cruising AUV, the other is working AUV to approach sea floor. In the paper, I introduce specification and some results of sea trials cruising AUV.l results.