Code lists and enumerations

A code list or enumeration is a controlled set of values which can be used to populate a specific column. The following pages contain the code lists / enumerations used by OS MasterMap Water Network Layer:

• LinkDirectionValue

• WatercourseFormValue

• WatercourseProvenanceValue

• LevelOfDetailValue

• ReasonForChangeValue

• VerticalPositionValue

• HydroNodeCategoryValue

• WatercourseTypeValue