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Snag (BD140)

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

RDF: bd140.ttl

Name

Snag

Kind

FeatureType

Definition

A tree, branch or broken pile embedded in the ocean floor, river or lake bottom and may not be visible on the surface, forming thereby a hazard to vessels.

Synonyms

Submerged Stump

Accepted

2013-10-18

Geometry

point, multipoint, curve, multicurve, surface, multisurface, solid, multisolid

Subtype of

ZI028 Feature Entity

Attributes

• SCE Screener — multiplicity 0..1; datatype BooleanMeta
• SNR Strainer — multiplicity 0..1; datatype BooleanMeta

Associations

• SnagHydroVertPosInfo → ZI025 Hydrographic Vertical Positioning Information (0..1)

RWOI terms naming it

• RWO_03453 Snag
• RWO_03614 Stump

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