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日本国海図及び海洋調査
発祥の地

明治4年、ときの政府は、海運や国防のために船舶が安全に航海するための海の深さや目標物を記した海図の整備が急務であると考え、兵部省海軍部水路局をこの地に創設し、外国人に頼らず独力で海洋調査を行って日本国として初めて海図を作製しました。
以来、この地において先人の偉業を継承して日本の海を調査し、海図の整備を行って近代日本の発展を支えてきました。
近年、これらの業務は海上保安庁海洋情報部に引き継がれ、世界に先駆けた電子表示の海図の刊行やわが国大陸棚を広げるための精密な海洋調査などを実施し、海洋立国の礎を築くとともに国際的な貢献を果たしてきました。
平成23年、築地を離れるにあたり、140年に亘る長い歴史を刻んだこの地を発祥の地として後世に伝えることとしました。

平成23年9月12日
海洋情報部関係者一同

Where Japanese Nautical Charts and Hydrographic Surveys Commenced

For maritime trade and national defense, it is crucially important to have nautical charts of harbors and coastal waters, which represent indeispensable information for safe navigation icluding water depths and navigational aids. In light of this, the Japanese government established the Navy Hydrographic Office here in 1871. The Office conducted hydrographic surverys and published the first Japanese nautical chart in 1872 without support from foriegn countries.
Sinsce the time, the Office has contributed to Japan's economic growth and modernization through continuous efforts toward hydrographic surveys and publication of naurical charts.
Recently, these activities have been taken up and continued by the Hydrographic and Oceanographic Department, Japan Coast Guard. The Department has published world's first Electoronic Navigational Chart (ENC) and made precise hydrographic surveys in order to further develop the continental shelf around Japan. These efforts have laid Japan's foundations as marine state and have contributed to international cooperation.
In 2011, the Department was moved from the place of its foundation. This plaque remains as to commemorate the place where Japanese nautical charts and hydrographic surverys commenced.

September 12, 2011
Hydrographic and Oceanographic Department

中央区築地5丁目 付近 [ストリートビュー]