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Geomorphic Break-line (ZD551)

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

RDF: zd551.ttl

Name

GeomorphicBreakline

Kind

FeatureType

Definition

A line along which the slope of a land surface model changes relatively abruptly.

Description

For example, a ridge line and a cliff. Land surface models use elevation data to approximate the shape of the terrain as a continuous mathematical surface.

Accepted

2013-10-18

Geometry

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

Subtype of

ZI028 Feature Entity

Attributes

GZT Geomorphic Type — multiplicity 0..1; datatype GeomorphicBreakline_geomorphicTypeMeta; values: GZT_10 Abrupt Slope Change, GZT_3 Cliff Top, GZT_4 Cliff Bottom, GZT_5 Fault-line Top, GZT_6 Fault-line Bottom, GZT_7 Centerline Drain, GZT_8 Ridgeline, GZT_9 Valley Line
SGC Surface Slope — multiplicity 0..1; datatype MeasureIntervalMeta

RWOI terms naming it

RWO_00014 AbruptSlopeChange
RWO_00486 Break Line
RWO_00636 Centerline Drain
RWO_00714 CliffBottom
RWO_00715 CliffTop
RWO_01205 Fault-line Bottom
RWO_01206 Fault-line Top
RWO_01448 Geomorphic Break-line
RWO_02020 Lower Slope Edge
RWO_03434 Slope Edge (Bottom)
RWO_03435 Slope Edge (Top)
RWO_03960 Upper Slope Edge
RWO_03977 Valley Line