【Introduction】

The ocean offers an extremely broad range of information that covers all phenomena arising in the ocean, such as waves and currents, water quality, marine organisms, marine minerals, and ship behavior. Due to this characteristically diverse and widely varying mixture of information, even information that has been acquired with the government’s budget has been difficult to manage in a centrally integrated manner to date. In addition to the diverse nature of the information, the poor demand for sharing information that each ministry and agency has been collecting and using for their own respective purposes is another reason for the lack of progress in consolidating ocean information.