# Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services, Division 8.4.2.1: Hydro Node Category (HydroNodeCategoryValue)

Extent: E+W+S+N.I.

Defines categories for different types of hydrographic network nodes.
The allowed values for this code list comprise only the values in the table below.
Values for the code list HydroNodeCategoryValue
Value
Definition
boundary
Node used to connect different networks.
flowConstriction
A network node unrelated to the network topology per se, but associated with a hydrographic point of interest or facility, or a man-made object, that affects the network flow.
flowRegulation
A network node unrelated to the network topology per se, but associated with a hydrographic point of interest or facility, or a man-made object, that regulates the network flow.
junction
Node where three or more links connect.
outlet
Ending node of a series of interconnected links.
source
Starting node of a series of interconnected links.

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Source: https://www.legislation.gov.uk/eur/2010/1089/annex/II/division/8/division/8.4/division/8.4.2/division/8.4.2.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2010-1089/annex-II/division-8/division-8.4/division-8.4.2/division-8.4.2.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.