How to Access to JODC

Marine Information Service Office

The Marine Information Service Office has been established in JODC to assist users in providing marine information and data archived such as water, temperature, salinity, ocean current, tidal current, tide and bathymetry, as well as in replying to questions related to oceans and seas. The references, nautical charts, hydrographic bulletin, other publications provided by the domestic and international agencies are also available.

Besides the services, inquiries on information for marine leisure made by telephone calls or letters are also acceptable.

The service is free of charge but request from non mutual data exchange or commercial users will be charged by Japan Hydrographic Association under the cost recovery basis, this is an actual cost related to the labour and materials, but there is no charge for the actual data.

Reference Services

Bibliographies and charts are displayed and stored on the table or in the book stand so that anyone is able to refer to them in the office, but not able to lend. The reference is classified into the following 3 categories:

Procedures for Reading

Reference services are available free, after users visit at the office and fill up a register form.

Providing Copies of Data

JODC data and information products and services are available upon request to all users on magnetic tapes, floppy disks, CD-ROMs, microfiches, or copies of original sheets. Requests may be submitted by letter, telephone or visit to the Marine Information Service Office.

Contact Point

Users may directly inquire any of the following offices by letter, telephone or visit. All the personnel are experienced in providing consultation to users and are accustomed to working together to fulfill users' requests.
Marine Information Service Office
Hydrographic and Oceanographic Department, Japan Coast Guard
2-5,18, Aomi, Koto-ki, Tokyo, 135-0064 Japan
Tel: +81-3-5500-7131
Open hours: 10:00 a.m. to 5:00 p.m.
Closed: Saturdays, Sundays, national holiday, December 28 to January 4

the map around JODCClick to show the Map around JODC

Regional Marine Information Service Office

The 1st Regional Headquarters of JCG
5-3, Minato-machi, Otaru-shi, 047-8560
Tel: 0134-27-0118(ext2511)
Fax: 0134-27-9301
The 2nd Regional Headquarters of JCG
3-4-1, Teizan-douri, Shiogama-shi 985-8507
Tel: 022-363-0111(ext2511)
Fax: 022-365-1341
The 3rd Regional Headquarters of JCG
5-57, Kitanaka-douri, Naka-ku, Yokohama-shi 231-8818
Tel: 045-211-1118(ext2511)
Fax: 045-212-1597
The 4th Regional Headquarters of JCG
2-3-12, Irifune, Minato-ku, Nagoya-shi 455-8528
Tel: 052-661-1611(ext2511)
Fax: 052-654-2536
The 5th Regional Headquarters of JCG
1-1, Hatoba-machi, Chuo-ku, Kobe-shi 650-0042
Tel: 078-391-1299
Fax: 078-332-6307
The 6th Regional Headquarters of JCG
3-10-17, Ujina-kaigan, Minami-ku, Hiroshima-shi 734-8560
Tel: 082-254-1140
Fax: 082-253-3682
The 7th Regional Headquarters of JCG
1-3-10, Nishi-kaigan, Moji-ku, Kitakyusyu-shi 801-8507
Tel: 093-331-0033
Fax: 093-331-7030
The 8th Regional Headquarters of JCG
901, Shimofukui, Maizuru-shi 624-8686
Tel: 0773-75-7373
Fax: 0773-76-4138
The 9th Regional Headquarters of JCG
2-2-1, Mandai, Niigata-shi 950-8543
Tel: 025-244-4140
Fax: 025-243-1694
The 10th Regional Headquarters of JCG
4-1, Higashikorimoto-machi, Kagoshima-shi 890-8510
Tel: 099-250-9800(ext2511)
Fax: 099-250-9812
The 11th Regional Headquarters of JCG
2-11-1, Minato-machi, Naha-shi 900-8547
Tel: 098-867-0118(ext2511)
Fax: 098-868-5242


For any questions and comments, please contact us to the mail address to

Updated : December 12, 2011