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Hydrographic Depth (HDP)

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

RDF: hdp.ttl

Name

hydrographicDepth

Datatype

Real

Definition

The depth from a specified sounding datum to the top or surface of a feature (for example: the bottom of a water body).

Description

Recorded depth values are usually positive, however in the case of drying heights they are negative.

Accepted

2013-10-18

Defined by

DFDD

Physical quantity

length

Recommended unit

Metre (m)

Used by

• ZB050 Survey Point
• BH030 Ditch
• BI044 Flood Control Structure
• BI030 Lock
• BB010 Anchorage
• FC034 Dredged Area
• BB015 Roadstead
• FC177 Swept Area
• FC165 Maritime Route
• BH050 Mariculture Site
• ZI025 Hydrographic Vertical Positioning Information
• BE020 Sounding
• FC046 Waterbody Area
• BG010 Water Movement Data Location
• DB070 Cut
• BB095 Dock
• BI045 Basin Gate
• BH020 Canal
• BH095 Wetland

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