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SCUFN

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Sub-Committee on Undersea Features Names

Bathymetry image of Brothers Seamount and caldera, an undersea volcano about 3 kilometers in diameter off the coast of New Zealand. Woods Hole Oceanographic Institution's autonomous underwater vehicle ABE acquired high-resolution (2-meter) bathymetry data inside the caldera. Surface ships mapped the lower-resolution (25- to 30-meter) bathymetry data on the surrounding volcano flanks. This feature was formally named using tools provided by the General Bathymetric Chart of the Oceans (GEBCO).  Credit: S.G. Merle (GNS Science/WHOI/NOAA/PMEL/OSU)The GEBCO Sub-Committee on Undersea Feature Names (SCUFN) maintains and makes available a digital gazetteer of the names, generic feature type and geographic position of features on the seafloor.

Access SCUFN's Terms of Reference Adobe PDF version of the Terms of Reference for SCUFN (65 KB)

A list of SCUFN contacts can be accessed from our Committees and Groups page.

The role of SCUFN

The setting up of SCUFN arose from the need for a uniform policy for the handling of geographical names and the standardisation of undersea feature names. This was done in order to achieve consistent naming on bathymetric maps and nautical charts.

The role of SCUFN is

  • To define the nomenclature used for undersea features, e.g. canyon, plateau, fracture zone, etc., as well as naming guidelines
  • To consider and decide on names that have been submitted to the Sub-Committee

All names selected by SCUFN are contained in the IHO-IOC GEBCO Gazetteer of Undersea Feature Names, IHO publication B-8.

The secretariat of SCUFN is provided by the Secretariat of the International Hydrographic Organization, Monaco, where the gazetteer database is maintained.

Find out about SCUFN's meetings.

Guidelines and nomenclature

Guidelines and nomenclature are contained in IHO-IOC Publication B-6 "Standardisation of Undersea Feature Names".

A digital copy of B-6 is available in a number of languages:

  • English/French Adobe PDF English/French language version of the document 'B-6 Standardisation of Undersea Feature Names' (2.3 MB)
  • English/Spanish Adobe PDF English/Spanish language version of the document 'B-6 Standardisation of Undersea Feature Names' (2 MB)
  • English/Korean Adobe PDF English/Korean language version of the document 'B-6 Standardisation of Undersea Feature Names' (408 KB)
  • English/Japanese Adobe PDF English/Japanese language version of the document 'B-6 Standardisation of Undersea Feature Names' (815 KB)
  • English/Russian Adobe PDF English/Russian language version of the document 'B-6 Standardisation of Undersea Feature Names' (771 KB)
  • English/Chinese Adobe PDF English/Chinese language version of the document 'B-6 Standardisation of Undersea Feature Names' (4 MB)

Romanization of Russian Geographical Names (UN System)

  • Microsoft Word version of the document 'Romanization of Russian Geographical Names (UN System)' (611 KB)
  • Adobe PDF version of the document 'Romanization of Russian Geographical Names (UN System)' (188 KB)

Names proposals

To submit a name proposal, download and return a name proposal submission form

  • English version Microsoft Word version of the undersea feature name proposal form (English) (48 KB) Adobe PDF version of the undersea feature name proposal form (English) (208 KB)
  • French version Microsoft Word version of the undersea feature name proposal form (French) (49 KB) Adobe pdf version of the undersea feature name proposal form (French) (265 KB)
  • Spanish version Microsoft Word version of the undersea feature name proposal form (Spanish) (49 KB) Adobe pdf version of the undersea feature name proposal form (Spanish) (253 KB)

Return forms to

International Hydrographic Organization (IHO)
4b, Quai Antoine 1er
B.P. 445
MC 98011 Monaco CEDEX
Principality of Monaco
Fax: +377 93 10 81 40
E-Mail: info@iho.int

Intergovernmental Oceanographic Commission
UNESCO
Place de Fontenoy
75700 Paris
France
Fax: +33 145 86 58 12
E-Mail: info@unesco.org

Meeting reports

SCUFN meets on a yearly basis. Access reports from past meetings (from the SCUFN pages at the International Hydrographic Organization's web site).