Least Depth Below Surface Level (LEA)

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

Name

leastDepthBelowSurfLevel

Datatype

Real

Definition

The distance measured from ground or water level (uphill/upstream side of the feature) to the highest point of a feature located completely underground.

Description

For example, in the case of an underground dwelling the least depth below surface level would be measured to its ceiling. The least depth below surface level may be located at ground or water level and therefore have a value of zero (for example: an opencast extraction mine, a terrain depression or a lake). For depths defined with respect to a time-varying water level, consideration should be given to the use of Attribute: 'Hydrographic Depth'.

Accepted

2013-10-18

Defined by

DFDD

Physical quantity

length

Recommended unit

Metre (m)

Used by

AL036 Tomb
AT005 Cable
AA010 Extraction Mine
AL250 Underground Dwelling
AD041 Nuclear Reactor Containment
AB021 Liquid Diffuser
BH010 Aqueduct
BH030 Ditch
BH140 River
ZD070 Water Measurement Location
AH060 Underground Bunker
FC046 Waterbody Area
DB028 Cave Chamber
BH020 Canal
AQ113 Pipeline
AQ130 Tunnel