[Talk-us] US Hydrographic Data
ian.dees at gmail.com
Thu May 1 18:18:48 BST 2008
Which data set should I ask for? I'm assuming Shapefiles, but I want to make
On Thu, May 1, 2008 at 12:17 PM, 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.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Talk-us