I don't know if this is where the data set came from, but it looks like it.<br><a href="http://csat.er.usgs.gov/statewide/downloads.html">http://csat.er.usgs.gov/statewide/downloads.html</a><br>Under landuse/landcover It looks like this is probably either the level 1 or level 2 data.<br>
<br><div class="gmail_quote">On Wed, Feb 25, 2009 at 2:42 PM, Theodore Book <span dir="ltr"><<a href="mailto:tbook@libero.it">tbook@libero.it</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I think the issue is more that the data is somewhat out of date - I<br>
believe it is tagging the land use, not the presence of trees. In some<br>
areas, however, especially around Atlanta, the land has been developed<br>
since the photography was taken on which the dataset is based. That<br>
will take some correction by hand. Georgia does have a lot of land that<br>
is devoted to forestry use - timber is Georgia's largest agricultural<br>
product.<br>
<br>
TB<br>
<div class="Ih2E3d"><br>
Dale Puch wrote:<br>
> It looks like the use of landuse forest is a quite a bit more than makes<br>
> sense or is of use. Yea there are lots of trees where it is shown, but<br>
> that includes subdivisions with a lot of trees still.<br>
> The USGS data seems to be more the type of trees, not the "state" of the<br>
> trees as a forest.<br>
> As an example, look at the map and try to show where designated national<br>
> forests are.<br>
><br>
> Personally I think the import is ok if the tags were adjusted more.<br>
> Forest should only be used if it is the primary landuse, or<br>
> federal/state claimed forest.<br>
><br>
> Dale<br>
><br>
> On Wed, Feb 25, 2009 at 2:42 PM, Theodore Book<br>
> <<a href="mailto:tbook@libero.it">tbook@libero.it</a><br>
</div><div class="Ih2E3d">> <mailto:<a href="mailto:tbook@libero.it">tbook@libero.it</a>>> wrote:<br>
><br>
> Dear Adam,<br>
><br>
> Trunk roads are major roads which are not necessarily limited access.<br>
> Generally, they are divided roads with higher speed limits and some<br>
> direct access. They would tend to fall between motorways and primary<br>
> roads in importance.<br>
><br>
> TB<br>
><br>
> Adam Schreiber wrote:<br>
> > Also, what's with the trunk roads? Trunk is supposed to be<br>
> > hierarchically above motorway, which is what interstates are tagged<br>
> > with and trunk is being applied to limited access US Hwy's?<br>
> ><br>
> > Adam<br>
> ><br>
> > On Wed, Feb 25, 2009 at 8:59 AM, Theodore Book<br>
> <<a href="mailto:tbook@libero.it">tbook@libero.it</a><br>
</div><div class="Ih2E3d">> <mailto:<a href="mailto:tbook@libero.it">tbook@libero.it</a>>> wrote:<br>
> >> Yes, It is USGS Landuse / Land Cover data. It is 1:100k or 1:250k<br>
> >> resolution, and also slightly dated. I find it to be pretty good<br>
> >> through zoom 14 or so, (see for example:<br>
> >><br>
> <a href="http://www.openstreetmap.org/?lat=34.4717&lon=-84.4287&zoom=14&layers=B000FTF" target="_blank">http://www.openstreetmap.org/?lat=34.4717&lon=-84.4287&zoom=14&layers=B000FTF</a><br>
> <<a href="http://www.openstreetmap.org/?lat=34.4717&lon=-84.4287&zoom=14&layers=B000FTF" target="_blank">http://www.openstreetmap.org/?lat=34.4717&lon=-84.4287&zoom=14&layers=B000FTF</a>>)<br>
> >> but there is some offset, especially around the Atlanta area,<br>
> that will<br>
> >> take some manual correction.<br>
> >><br>
> >> Adam Schreiber wrote:<br>
> >>> On Tue, Feb 24, 2009 at 11:42 AM, Ian Dees<br>
> <<a href="mailto:ian.dees@gmail.com">ian.dees@gmail.com</a><br>
</div><div class="Ih2E3d">> <mailto:<a href="mailto:ian.dees@gmail.com">ian.dees@gmail.com</a>>> wrote:<br>
> >>>> On Tue, Feb 24, 2009 at 10:31 AM, Adam Schreiber<br>
> <<a href="mailto:sadam@clemson.edu">sadam@clemson.edu</a><br>
</div><div class="Ih2E3d">> <mailto:<a href="mailto:sadam@clemson.edu">sadam@clemson.edu</a>>> wrote:<br>
> >>>>> Has anyone else noticed some kind of import of park/forest<br>
> data for<br>
> >>>>> Georgia going on? Does anyone know that source of the data?<br>
> >>>>><br>
> >>>>><br>
> <a href="http://openstreetmap.org/?lat=34.043&lon=-84.233&zoom=9&layers=B000FTF" target="_blank">http://openstreetmap.org/?lat=34.043&lon=-84.233&zoom=9&layers=B000FTF</a><br>
> <<a href="http://openstreetmap.org/?lat=34.043&lon=-84.233&zoom=9&layers=B000FTF" target="_blank">http://openstreetmap.org/?lat=34.043&lon=-84.233&zoom=9&layers=B000FTF</a>><br>
> >>>> Looks like OSM user "Liber" is uploading it.<br>
> >>>><br>
> >>>> <a href="http://openstreetmap.org/user/Liber" target="_blank">http://openstreetmap.org/user/Liber</a><br>
> >>>><br>
> >>>> We need to be careful when uploading data like this that is<br>
> very low<br>
> >>>> resolution. As you zoom in closer, you can see that it loses<br>
> meaning around<br>
> >>>> zoom 9, which means it was probably a 1:1M or so resolution.<br>
> Usually my<br>
> >>>> cutoff is at 1:24K.<br>
> >>> I have sent Liber a message via the website. Hopefully, we'll find<br>
> >>> out what's going on.<br>
> >>><br>
> >>> Cheers,<br>
> >>><br>
> >>> Adam<br>
> >>><br>
> >>> _______________________________________________<br>
> >>> Talk-us mailing list<br>
> >>> <a href="mailto:Talk-us@openstreetmap.org">Talk-us@openstreetmap.org</a><br>
</div>> <mailto:<a href="mailto:Talk-us@openstreetmap.org">Talk-us@openstreetmap.org</a>><br>
<div class="Ih2E3d">> >>> <a href="http://lists.openstreetmap.org/listinfo/talk-us" target="_blank">http://lists.openstreetmap.org/listinfo/talk-us</a><br>
> >><br>
> >> _______________________________________________<br>
> >> Talk-us mailing list<br>
> >> <a href="mailto:Talk-us@openstreetmap.org">Talk-us@openstreetmap.org</a><br>
</div>> <mailto:<a href="mailto:Talk-us@openstreetmap.org">Talk-us@openstreetmap.org</a>><br>
<div class="Ih2E3d">> >> <a href="http://lists.openstreetmap.org/listinfo/talk-us" target="_blank">http://lists.openstreetmap.org/listinfo/talk-us</a><br>
> >><br>
> ><br>
> > _______________________________________________<br>
> > Talk-us mailing list<br>
> > <a href="mailto:Talk-us@openstreetmap.org">Talk-us@openstreetmap.org</a><br>
</div>> <mailto:<a href="mailto:Talk-us@openstreetmap.org">Talk-us@openstreetmap.org</a>><br>
<div class="Ih2E3d">> > <a href="http://lists.openstreetmap.org/listinfo/talk-us" target="_blank">http://lists.openstreetmap.org/listinfo/talk-us</a><br>
><br>
><br>
> _______________________________________________<br>
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</div>> <mailto:<a href="mailto:Talk-us@openstreetmap.org">Talk-us@openstreetmap.org</a>><br>
<div class="Ih2E3d">> <a href="http://lists.openstreetmap.org/listinfo/talk-us" target="_blank">http://lists.openstreetmap.org/listinfo/talk-us</a><br>
><br>
><br>
><br>
><br>
> --<br>
> Dale Puch<br>
><br>
><br>
</div>> ------------------------------------------------------------------------<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Dale Puch<br>