Data regarding the ocean accumulates observations and surveys carried out by multiple ministries, agencies, and public institutes, but the location and even existence of that data is not well known among the general public. Centralization of data would promote a more user-friendly environment and thus more use of the ocean. This idea is also set forth in the Integration of Marine Related Information section of the Basic Plan on Ocean Policy. To help bring this integration about, the Japan Coast Guard has begun the building of its Marine Cadastre, as an information tool in support of ocean policy and made it available to the public.

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