[Tagging] Any support for a flow tag?
malcolm.herring at btinternet.com
Sat Apr 2 17:32:06 BST 2011
On 01/04/2011 16:47, john at jfeldredge.com wrote:
> One example of a waterway with reversing flow would be the estuary of a river. While the tide is rising, the flow in the estuary may slow, come to a standstill, or even temporarily reverse directions (called a tidal bore).
> -------Original Email-------
> Subject :Re: [Tagging] Any support for a flow tag?
> From :mailto:dieterdreist at gmail.com
> Date :Fri Apr 01 09:38:31 America/Chicago 2011
Estuaries are generally mapped as coastlines, so river flows are not
applicable. Tidal flows, being dynamic, cannot have a direction.
Within the river domain, the nominal flow is always towards the sea,
even if temporarily reversed by incoming tides.
A tidal bore is a wave, not a current. It travels upstream, but the
river continues to flow downstream.
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