On Thu, 1 Oct 2015 21:03:15 +1000 Warin <61sundow...@gmail.com> wrote:
> On 1/10/2015 5:51 PM, Mateusz Konieczny wrote: > > > > According to what I found "intermittent" is not excluding regular > > changes - see for example "Intermittent streams flow seasonally in > > response to snowmelt and/or elevated groundwater tables resulting > > from increased periods of precipitation and/or decreased > > evapotranspiration." from "Temporary streams" by Margaret Palmer, > > Meaning the streams ONLY flow sometimes and ONLY when there is snow > melt /rain fall .. > > So the two things combine to say .. > > if there is snow melt or rainfall > > then there MIGHT be water in the stream. > > To me that is not seasonal.. I am not sure how it is a problem, because it is definition of intermittent waterway. > unless you can say that the rain and > snow only falls in given parts of the year and at no other time? That is one of cases where waterway is intermittent and seasonal. > Given the weather does not conform that well to the 'season's .. I'd > be more inclined to leave off the seasonal tag. It depends on location. > > There is nothing wrong with adding both intermittent=yes and > > seasonal=yes. > > intermittent= irregular = not regular. > > seasonal= regular. According to your second mail one of synonyms of intermittent is also "periodic". It is not 1:1 mapping, especially as "intermittent" appears to have a defined meaning in hydrology. > For me I would simply tag something that is irregular > intermittent=yes, and leave out the seasonal. > If it 'typically' flows seasonally then don't use intermittent, use > seasonal=yes(winter,summer etc)! Why not use both in cases of waterways that are not permanently filled with water? To make it harder to use data? > Using your above snow melt example .. does snow not fall out of > season occasionally? Depends on location. > > Also, there is no good reason to break data consumers by > > removing popular and correct intermittent=yes and adding a new tag > > (seasonal=yes). > > seasonal is an existing tag. And should be used to mark things that > are regular on a yearly scale. I am not protesting adding seasonal=yes, I am protesting removing correct intermittent=yes tags. > The intermittent tag should NOT be used for things that are seasonal. And it should be used for things that are both seasonal and intermittent. > We should tag the truth. That is what the consumers expect. Yes. I am also not aware about anybody disputing this. > Note that this came about because someone took intermittent to mean > it happened on a regular yearly basis.. and that is wrong. Yes. This is clearly wrong. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
