The Census Atlas provided one criterion for the definition of an island: it has to be above water at high tide.
On Sat, Feb 20, 2016 at 10:02 AM, Jim Morgan <[email protected]> wrote: > On Saturday, 20 February, 2016 09:32 AM, Eugene Alvin Villar wrote: > >> According to the latest news, there are now "exactly" 7,641 islands. This >> is stated by the so-called Philippine Islands Measurements Project of >> NAMRIA. >> I have previously e-mailed NAMRIA to get info on how they keep track of >> islands and how the most often quoted figure of 7,107 islands was derived. >> Predictably I didn't get any definitive answer. >> > I remember hearing that the number of islands varies depending on whether > its high tide or low tide, so any figure which claims to be exact should be > treated with suspicion. Unless they've come up with a definition of island > which copes with this -- maybe it has to be visible for 12 hours in a 24 > hour period! :-) Also when does a rock become an island? > > Then there's the matter of islands whose ownership is in dispute, and the > ones which are being blatantly stolen by our neighbours. But lets not get > into that here ... :-) > > Jim > > > > _______________________________________________ > talk-ph mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-ph >
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