Environmental Data Coding Specifcation        ISO IEC LogosRight Title Graphic
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Status: STD 2005/06/07
Code: 1142

Concept definition: The vertical, typically tidal, <SURFACE_DATUM> to which <SOUNDING>s and <<HYDROGRAPHIC_DRYING_HEIGHT>>s are referenced; sounding datum. A sounding datum is usually taken to correspond to a low water stage of the <TIDE>.
Reference type: IR
Reference: [S57A, Attribute: VERDAT]
Supplemental references:  

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