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Observed Land Water Boundary Height (OLH)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: olh.ttl

Name

obsLandWaterBoundaryHgt

Datatype

Real

Definition

The vertical elevation difference between an observed tidal level or river stage and a specified reference level (for example: a tidal sounding datum or a river base level).

Description

For example, a water line may be established for a time at which the tidal state doesn't correspond to a standard sounding datum. The observed boundary height then specifies how much higher or lower the tide stage was from a specified sounding datum.

Accepted

2013-10-18

Defined by

DFDD

Physical quantity

length

Recommended unit

Metre (m)

Used by

• BA000 Water Line

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.