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Bottom Material Type (BMC)

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

RDF: bmc.ttl

Name

bottomMaterialType

Datatype

Enumeration

Definition

The primary type(s) of material composing the bottom of a body of water.

Accepted

2013-10-18

Defined by

DFDD

Values

• BMC_1 Clay and Silt
• BMC_11 Coral
• BMC_14 Sand
• BMC_15 Concrete
• BMC_16 Masonry
• BMC_17 Reinforced Concrete
• BMC_18 Soil
• BMC_2 Silty Sands
• BMC_3 Sand and Gravel
• BMC_4 Gravel and Cobble
• BMC_5 Rocks and Boulders
• BMC_6 Bedrock
• BMC_7 Paved
• BMC_8 Peat
• BMC_9 Sand over Mud

Used by

• BH010 Aqueduct
• BH030 Ditch
• BH082 Inland Waterbody
• BH141 Inland Waterbody Bank
• BH140 River
• BH071 Fordable Site
• BH250 Shallow Water Area
• BH191 Channel
• BA070 Waterbody Bar
• BH190 Lagoon
• BA040 Tidal Water
• BH020 Canal
• BH070 Ford
• BH095 Wetland

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