On Tuesday 04 August 2020, Kevin Kenny wrote: > > The Hudson definitely reverses flow. One of its names among the First > Peoples translates to 'the river flows both ways.' The division in > the flow lies less in the fraction of the tidal cycle than the speed > of the current. It flows 'upstream' for half the time, 'downstream' > for half, but the downstream current is considerably swifter.
Note the proposal is a draft and does not necessarily represent the ultimate wisdom on everything written there. I am not an expert on tidal dynamics of rivers so it is well possible that some adjustments in the details are advisable. Defining the lower limit in the tidal case through water flow volume rather than duration seems prudent (and also better matching the logic for the non-tidal case) - i chose duration mostly because it is practically easier for the mapper to observe. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging