ANNEX II REQUIREMENTS FOR SPATIAL DATA THEMES LISTED IN ANNEX I TO DIRECTIVE 2007/2/EC

8. HYDROGRAPHY

8.4. Hydro - Network

8.4.1. Spatial Object Types

8.4.1.2. Watercourse Link (WatercourseLink)
A segment of a watercourse within a hydrographic network.
This type is a sub-type of Link.
This type is a sub-type of HydroObject.

Attributes of the spatial object type WatercourseLink
Attribute	Definition	Type	Voidability
flowDirection	Direction of water flow in the segment relative to digitisation of segment geometry.	LinkDirectionValue	voidable
length	Length of network segment.	Length	voidable