RIS Definitions

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Last updated: 31.03.2021

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Datum Vertical means a surface to which elevations and/or depths (soundings and tide heights) are referred. For elevations commonly a level (equipotential) surface, approximately the mean sea level is used, for depths in many cases low water.

(Source: CCNR Inland ECDIS Standard; Edition 2.0/23/11/2006)

Inland ECDIS