Advice / Conseils
For navigation use only updated regulatory documents /
Pour la navigation n'utiliser que des documents réglementaires à jour.
GPS is more accurate than nautical charts /
Un GPS est plus précis qu'un carte marine
Web Servers / Serveurs Web
You can use the nearest or faster server / Vous pouvez utiliser le serveur le plus proche ou le plus rapide :
Caption / Légende
航海用海図 ― 索引図 ― 特殊図 ― 水路書誌。
Not for navigational use / Ne pas utilisez pour la navigation
This sample of ENC was made by Hydrographic and Oceanographic Department,JCG. This data will be used for the development of the ENC viewer software and so on.
電子海図 ガイドブック。 このガイドブックは、公式電子海図と非公式電子海図の違いや、船舶が電子海図を使用する際の要件、注意事項などを “質疑応答” 形式で取りまとめ解説した参考書です。 日本水路協会 ― 国際水路機関。
Tidal Data with TOPS (Tide Observation & Prediction System). TOPS provides you with the tide prediction heights for a day at a port around the coastal of Japan. The system has nearly 330 ports including 71 standard ports in the tide table published by Japan Coast Guard. The system provides also the tidal current prediction with hourly velocities at three areas in Japan, that is, Tokyo bay, Ise bay and Seto inland sea.
Actual tidal current prediction for the Setonaikai area, Japan (UTC+9)
Sea ice condition chart, visual observation and photograph of the sea ice for Japan (Hokkaidō island) by the Ice Information Center (日本語 - English - По-русски). Also chart in the north-east Asian marginal seas by JMA.
Guide in PDF for the Vessel Traffic Service Center: Tokyo Wan - Ise Wan - Nagoya-Ko - Osaka Wan - Bisan Seto - Kurushima Kaikyo - Kanmon Kaikyo. Traffic Advisory Service Center web sites. Also view online e-book.
Based on the recent trends of the accidents on the sea and the changes of the environment of the maritime traffic including the dissemination of Automatic Identification System (AIS), the Act on Partial Revision of the Act on Port Regulations and the Maritime Traffic Safety Act was promulgated on July 2009 to increase the safety of maritime traffic. The main items of this revision are following: Strengthening measures for assisting the safe navigation of vessels and establishment of new navigation rules according to the features of each sea area. This brochure aims to help all those concerned to fully understand the intention of this revision and observe the new rules. Also correction.
The Japan Coast Guard is promoting various measures based on the Act on Maritime Traffic Safety for ensuring maritime traffic safety in Tokyo Wan, Ise Wan and Seto Inland Sea. In addition, each Regional Maritime Safety Headquarters carries out detailed navigation safety guidance in accordance with the actual conditions in the sea area where it takes charge. This document contains detailed navigation safety guidance which is promoted in Nagoya-Ko and Kanmon Kaikyo as well as the above by the 3rd and 7th Regional Maritime Safety Headquarters.
The sea areas around Japan have been the places where marine casualties occur with great frequency. Approximately 2,600 vessels including foreign vessels meet with marine casualties as the average in the last 10 years, causing around 140 people found dead or missing.We wish anyone who undertakes a voyage around Japan will read this book and navigate safely. Table of contents: Weather and sea conditions in sea areas around japan - Navigation law and pilotage - Information for safe navigation - Guide to safe navigation.
This site provides information which was broadcasted for vessels by radio for: 1. Japan, 2. North Pacific,Sea of Okhotsk, 3. China,East China Sea,South China Sea, 4. Indian Ocean,Persian Gulf, 5. South Pacific.
Map with the location of Preliminary and Temporary Notices to Mariners, Local, NAVAREA and NAVTEX Navigational Warnings.
The vessels be equipped with the "List of Aids to Navigation" based on the law, and also be equipped with the "Addition". The "Addition Vol.1" is published twice a month (on the 2nd and 4th Fridays every month). The "Addition Vol.2" is published every month (on the 4th Friday).
List of Contents: Information about maritime safety information, Notices to mariners, Navigational warnings (Japan), Miscellaneous information.
Printed copies of the Notices to Mariners and chartlets(blocks)on the JHOD Website may be used as an equivalent to the paper version of the Notices to Mariners and chartlets (blocks). It should be noted that the chartlets (blocks) printed from the website, may not have the same quality and accuracy as the paper version, depending on the quality and condition of the printer and ink used. The Japan Coast Guard (JCG) does not accept any responsibility whatsoever for the accuracy and/or reliability of the information as displayed or printed by the user's equipment.
To promote the safe and economical navigation of vessels at sea the Japn Meteorogical Agency (JMA) issues a variety of marine meteorogical information for shipping and fishing. JMA hopes that this brochure will promote understanding of the information issued by JMA and thus contribute to safer and more economical navigation.
全国各地における潮位の予測値（天文潮位）を掲載しています。s満潮・干潮 - 毎時潮位（グラフ）- 毎時潮位（表）(Tide for Japan).
船舶向け天気図 - Analysis and prognosis charts for the western North Pacific on the radio facsimile (JMH station) are placed on this web site. Page in Japanese. For the wave charts: Significant Wave Height (SWH; The average height of the highest one-third of waves) is shown in the chart. Generally, each wave may happen to be higher than SWH.
Also color maps for typhoons / Également carte couleur pour les typhons - Height in metres / Hauteurs en métres
Daily sea ice condition chart in the north-east Asian marginal seas (ice concentration chart in color). For the sea of Okhotsk there is also black and white charts with bulletin every tuesday and friday. For Hokkaidō island there is forecast chart every wednesday and saturday in the ice season. Sea also color ice chart for Hokkaidō island by the JCG.
Marine meteorological observation is indispensable to provide weather information for ships such as marine meteorological forecast or warnings, and is also used for monitoring and study of climate change such as global warming. It is highly appreciated that ships will cooperate on marine meteorological observations and reports as Voluntary Observing Ships (VOSs). The website "Ships' Weather Observations/Reports" is to provide information to support VOS activities.