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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]  
STD
2014/02/14		 HYDROLOGIC_PERSISTENCE PERMANENT Permanent. 5 IR [FACC, Annex B, HYC:8] [APDS, "perennial stream"]
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