JHOD has established in 1871. Since then, JHOD has been engaged in carrying out various hydrographic surveys and marine observations as well as publishing nautical charts and publications. Outcomes of those surveys and our productions are made available to the mariners through the distributors, internet, etc.

• Organizational Structure

 

• What we do
• Maritime Safety Information
• Electronic Navigational Charts (ENC)
• Nautical Charts and Sailing Directions
• List of Charts and Publications [Japan Hydrographic Association (JHA) website]
• List of Agents
• Notices to Mariners
• Navigational Warnings
• List of Aids to Navigation
• Nautical almanacs

 

• Hydrographic Survey
• Hydrographic surveys
• Basic Maps of the Sea
• Precise geographical positions of the Japanese islands
• Coastal Information Maps against Natural Disasters
• Tsunami Simulation
• Researches on Earthquakes & Volcanoes
• Seafloor Topography of Plate Boundaries
• Recent Surveys of Submarine Volcanoes
• Latest Results of the Geodetic, Geomagnetic and Gravity Observations
• Research Reports and Technical Bulletins

 

• Japan Oceanographic Data Center

 

• Oceanographic Observation
• Realtime Tidal Data
• Quick Bulletin of Ocean Conditions
• HF Ocean Radar
• HF Ocean Radar (Sagami Bay)
• Marine Pollution Survey and Radioactivity Survey
• Ice Information Center, Japan

 

• International Cooperation
• in the framework of International Hydrographic Organization (IHO)
• in the framework of East Asia Hydrographic Commission (EAHC)
• JICA Group Training - Hydrographic Survey Course

 

• Survey Vessel

 

 

• Brochure [PDF 4.5MB]