The international standard that sets how hydrographic and chart data are encoded and exchanged, and the format of most ENCs in service. It models the world as feature objects such as DEPARE (depth area), SOUNDG (sounding), WRECKS and OBSTRN, each with attributes like VALSOU for the depth over a feature and QUASOU for its quality. Survey offices often deliver new features to charting staff coded in this catalogue.
Code the new wreck in S-57 as WRECKS with VALSOU 7.8 and attach the side-scan images.
Also heard as
- S57
- IHO S-57
Related terms
ENC
Electronic navigational chart: an official vector chart database used in ECDIS, built from objects with attributes.
S-100
The international data framework behind a family of marine products, including vector charts, gridded bathymetry and water levels.
ECDIS
Electronic Chart Display and Information System: the type-approved chart system a ship can carry in place of paper charts.
Wreck
The remains of a sunken vessel, charted as a hazard or a feature depending on its depth and size.