Environmental Data Coding Specifcation        ISO IEC LogosRight Title Graphic
Home Browse Search Download Submissions FAQs Contact
 

EA:  HYDROLOGIC_PERSISTENCE

Status: STD 2005/06/07
Code: 481
Concept definition: The persistence of a <HYDROLOGIC_OBJECT>.
 
Attribute value type: ENUMERATION
Reference type: IR
Reference: [FACC, Annex B: HYC]
Supplemental references:  
Enumerants (presented in a natural order)
Status Attribute label Enumerant label ▾ Concept definition Code Ref type Reference Supplemental references
STD
2005/06/07		 HYDROLOGIC_PERSISTENCE DRY Dry. 1 IR [FACC, Annex B, HYC:3]  
STD
2014/02/14		 HYDROLOGIC_PERSISTENCE EPHEMERAL Has flowing water only during, and for a short duration after, precipitation events in a typical year; ephemeral [WRC, "ephemeral stream"]. The water table is located below the bed year-round. Runoff from rainfall is the primary source of <WATER> for the <HYDROLOGIC_OBJECT>, while groundwater is not a source of <WATER>. 6  
STD
2005/06/07		 HYDROLOGIC_PERSISTENCE NON_PERENNIAL Not <<<PERENNIAL>>>; non-perennial. 2 IR [FACC, Annex B, HYC:6]  
STD
2005/06/07		 HYDROLOGIC_PERSISTENCE PERENNIAL Has flowing <WATER> year-round during a typical year; perennial [WRC, "perennial stream"]. The water table is located above the bed for most of the year. Groundwater is the primary source of <WATER> for the <HYDROLOGIC_OBJECT>, while runoff from rainfall is a supplemental source of <WATER>. 3 IR [FACC, Annex B, HYC:8] [APDS, "perennial stream"]
STD
2014/02/14		 HYDROLOGIC_PERSISTENCE PERENNIAL_OR_PERMANENT <<<PERENNIAL>>> or <<<PERMANENT>>>. 4 IR [FACC, Annex B, HYC:8]  
Group membership:

In addition to the status and date information for each entry, a colour coding scheme highlights the database holding to which an entry belongs. The following highlight colours are used:

  • white - the entry is in the standard
  • yellow - the entry has been added to the register
  • pink - the entry has been submitted for inclusion in the register, but it is not approved
  • cyan - a deprecated entry that was originally either in the standard or was added to the register, but has since been deprecated

The following icons are used to identify items that have figures, modifications and/or clarification notes:

  • F n - has Figures and, if more than one figure, n figures
  • M - has Modifications
  • C - has Clarifications

Bottom Bar Graphic
 Send mail to webmaster with questions or comments about this web site.