[Talk-us] US Hydrographic Data

[Ian Dees]

Matthew,

What do you think needs to be done to the NHD import script to make it
"final" -- or at least in a state that we could start running imports for
the whole country?

I should be receiving the DVDs tomorrow or Saturday. Dave, what were your
experiences importing the TIGER data? How should we proceed importing this
data?

On Thu, May 1, 2008 at 12:28 PM, Matthew Perry <perrygeo at gmail.com> wrote:

> On Thu, May 1, 2008 at 10:17 AM, Karl Newman <siliconfiend at gmail.com>
> wrote:
> >
> > On Thu, May 1, 2008 at 10:10 AM, Ian Dees <ian.dees at gmail.com> wrote:
> > > I e-mailed the folks at the NHD about obtaining all the data for the
> US in
> > one chunk. They responded:
> > >
> > > --------------
> > >
> > > We offer full national coverage of the NHD database on DVD. This
> includes
> > > all medium resolution, and available high resolution NHD.  This
> > > is a April 2008 snapshot of the database. We have two versions of
> national
> > > exports, SDE 9.1, or shapefiles.
> > >
> > > ArcSDE 9.1 Exports:  8.6 GB on 2 DVDs, requiring 20 GB of space when
> > > unzipped
> > > Shapefiles:  17 GB on 5 DVDs, requiring 42 GB of space when unzipped
> and
> > > untarred
> > >
> > > ----------------
> > >
> > > I will ask them to send the DVDs and post the data online if we are
> > interested in uploading it as a dataset.
> > >
> > >
> >
> > That would be awesome. Maybe we could rip out the TIGER hydrographic
> > features and replace them with the NHD stuff. Maybe coastlines, too? I
> guess
> > we'd have to be careful about duplicating/overwriting people's work,
> though.
>
>
> Very cool! We would definitely have to be more careful about which
> features we used, how they were tagged, making sure they didn't
> conflict with existing features, etc.
>
> --
> Matthew T. Perry
> http://www.perrygeo.net
>
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