On Tue, Mar 04, 2014 at 07:35:02AM +0700, Dave Swarthout wrote: > Speaking as a chemist, the term "sulfuric" would imply strong acidity as in > sulfuric acid. What you're looking for I believe is a term to indicate if > the water smells bad or not. Many hot springs have a rotten egg smell lent > to the water by dissolved hydrogen sulfide (H2S), some of which escapes > into the atmosphere to assault one's nose. This water would also be acidic > but not to the same degree as "sulfuric" suggests. Perhaps sulfide=yes/no > or sulfurous=yes/no would work better.
thanks for the input. I am not aware of many sulfurous hot springs in Europe, one of them is on the http://en.wikipedia.org/wiki/Methana peninsula. Do you think characterising that as sulfurous would be fine? I think we need something a "main characteristic" for layman usage and something for the detailed properties. I am not yet sure if these should be combined in one (multivalued) tag or done in separate tags. > Also, I like the term water_characteristic or something similar. A more > general, because not limited to water, but less common term might be > effluent_characteristic. This would cover hot springs that involve mud, > steam, or other stuff coming out of the ground. If water only, then > effluent_characteristic=water > or > effluent_characteristic=water+steam > It might even be extended to include hydrogen sulfide: > effluent_characteristic=water+sulfide "effluent_characteristic" might be a very good idea to map all kinds of fluid material. I was even thinking reusing it to characterise lava streams but then we would need a separate tag for solid lava fields, probably not so good. So maybe water_characteristic which could be used for everything from mudpots to saltwater in the ocean. Richard _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
