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Predominant Gap Width (PGW)

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

RDF: pgw.ttl

Name

predominantGapWidth

Datatype

RealInterval

Definition

The predominant width (the width of at least 50 percent) across the top of a gap in the terrain surface.

Description

For water-filled channels it is measured between the tops of the first accessible breaks in slope above mean water level on each bank.

Accepted

2013-10-18

Defined by

DFDD

Physical quantity

length

Recommended unit

Metre (m)

Used by

• BH010 Aqueduct
• BH030 Ditch
• BH140 River
• BH020 Canal

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