[Imports] CLC meadow cleanup

[Jo]

I also think it's more gratifying to start from scratch. I live in Belgium
though and we only have some CLC landuses on the border with France.

I think a "white map" will also trigger more people into working on
landuse, but it will of course take a while, maybe even 2-3 years. That
shouldn't be a reason. In this case we can do a far better job tracing from
imagery.

Polyglot


2014-03-24 16:24 GMT+01:00 sly (sylvain letuffe) <liste2 at letuffe.org>:

> On samedi 22 mars 2014, Paul Norman wrote:
> > After going at it piece-meal I'm wondering if we need to go after it in a
> > systematic manner with a mechanical edit.
>
> I think it should be decided based on the local community's feeling about
> that
> import :
> - are all CLC classes concerned or is it just landuse=meadow
> - does the community prefer to restart blank or to upgrade it gradually
> ...
>
> > 1. I did the editing in Poitou-Charentes, France. Is the CLC data here
> >   representative of other data?
>
> As far as I know : yes
>
> > 2. Are there other CLC classifications which are just as bad?
>
> The general CLC precision is bad on all CLC classifications compared to
> what
> can be done with bing today
>
> But IMHO natural=rock (often a mix of scree/bare rock/other)
> landuse=meadow,
> landuse=industrial;retail (double tagged + some residential in it) and
> natural=glacier (snow was often confused with glacier's ice) counts as the
> worst
>
> > I am contemplating proposing a mechanical edit to remove the bad data.
> What
> > are peoples thoughts on this?
>
> Not to.
>
> As I've said on the talk-fr list one year ago
> [
> https://lists.openstreetmap.org/pipermail/talk-fr/2012-September/047914.html
> ]
> , I now think, on the light of new aerial imageries available, that the CLC
> import was a "partial error" that we shouldn't have done, and I would argue
> against if it were to be proposed to be done now.
>
> But my opinion is not that of everyone, discussion has shown people
> believeing
> it as pro as well and should be kept and manually replaced/updated bit by
> bit.
>
> --
> sly
> qui suis-je : http://sly.letuffe.org
>
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