USGS Urban coverage shapefile

[Thomas Chesky]

Lowell, Stephen, Ed,

Thanks for the replies.
I'll try to contact USGS again.

In the meantime, is there a free GIS tool (preferrably on Windows) I could use to
1) Get the WMS layer of a given USGS Urban ortho area
2) Use a "drawing" tool to draw the boundary myself and save that polygon as shapefile?

It's manual labor, but better than not having exact coverage :-)

Thanks

Thomas




Lowell Filak <lfilak at MEDINACO.ORG> wrote:
The following message was sent by Thomas Chesky
on Tue, 1 Feb 2005 17:18:12 -0800.

> Hello,
>
> Does anybody know how to get the boundary of USGS Urban ortho coverage
in shapefile (or WKT etc.) format. I could only found the coverage index
in raster format on the USGS site (seamless.usgs.gov) I'd like to be
able to tell having a lat/lon coordinates whether it falls into one of
the Urban coverage areas. The USGS WMS server provides boudary rectangle
only (in GetCapabilities), which obviously will not solve my problem as
the coverages are not rectangles.
>
> There must be something like this otherwise how could USGS create the
raster coverage index.
>
> Any help is greatly appreciated.
>
> Thomas
>
> ps I emailed USGS as well but not yet received any reply

Thomas,

For our tiny neck of the woods we ended up digitizing the urban areas we
needed because we were never able to obtain anything but pdf's. That was
a couple of years ago so possibly things have changed.?

Lowell


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