exactly my thoughts too it's called tidal estuary
many boundaries in metro manila defined by rivers and (vanishing) esteros --- I explore, therefore I blog! http://www.backpackingphilippines.com http://www.facebook.com/backpackingPhilippines http://www.twitter.com/backpackPH On Sep 12, 2013, at 10:22 AM, rem zamora <[email protected]> wrote: > Good idea Jim. > > However it got me thinking also... in the case of Pasig river, the flow of > the water depends on the time and tide of the day. Sometimes water flows > inward from the bay to Laguna lake but there are times also that the water > flows from the lake to the ocean (which is what seems to be natural to me, > all water flows toward the ocean). > > Just a thought. This is the same case also in Malabon and some parts of > Bulacan also :) > > On Sep 12, 2013 9:42 AM, "Jim Morgan" <[email protected]> wrote: >> On Thursday, 12 September, 2013 09:31 AM, maning sambale wrote: >>> In some cases, we had to switch the way direction to follow the the >>> convention [0] that the "direction of the way should be downstream >> Hah, I'd never really thought of this before. I guess a lot of times I start >> tracing from the sea backwards inland, so I've probably got this wrong a few >> times. >> >> It started me thinking though. If you were able to get the elevation data >> for the start point and end point of a waterway, you could probably work out >> the direction of flow from that, and apply it automagically. >> >> So what about canals? :-) >> >> Jim >> >> _______________________________________________ >> talk-ph mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/talk-ph > _______________________________________________ > talk-ph mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-ph
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