News for: Mapping

Intermittent Rivers Map - National River Flow Archive

Friday, November 24, 2017

Many rivers are not perennial, and experience periods of zero-flow along part or all of their channel length.  Some have annual patterns of flow and zero-flow in response to groundwater level or snowmelt (intermittent), some flow only briefly in response to rainfall (ephemeral), and others dry wholly or partially because of artificial influence.  These streams support a diverse range of aquatic and terrestrial ecology, including specialists that are able to exploit the changing conditions, and it is now being recognised that they deserve the same protection afforded to perennial rivers.

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