# 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 8.5.4.2: Hydrological Persistence (HydrologicalPersistenceValue)

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

Categories of hydrological persistence of a body of water.
The allowed values for this code list comprise only the values in the table below.
Values for the code list HydrologicalPersistenceValue
Value
Definition
dry
Filled and/or flowing infrequently, generally only during and/or immediately after heavy precipitation.
ephemeral
Filled and/or flowing during and immediately after precipitation.
intermittent
Filled and/or flowing for part of the year.
perennial
Filled and/or flowing continuously throughout the year.

---
Source: https://www.legislation.gov.uk/eur/2010/1089/annex/II/division/8/division/8.5/division/8.5.4/division/8.5.4.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2010-1089/annex-II/division-8/division-8.5/division-8.5.4/division-8.5.4.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.