[Tagging] Any support for a flow tag?

[Colin Smale]

On 01/04/2011 17:47, 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).
Surely most estuaries reverse direction with an incoming tide, 
especially close to the sea?

A tidal bore is a specific phenomenon (a step change in the water depth, 
moving upstream), and is not simply a reversal of 
direction:http://en.wikipedia.org/wiki/Tidal_bore


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