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. On Wed, Apr 30, 2008 at 11:24 AM, Ian Dees <[EMAIL PROTECTED]> wrote: > It appears that in order to get your data to appear on the FTP site, you > must first request it via their web extract tool: > > http://nhdgeo.usgs.gov/help/HowTo.html (which is meant to be viewed from > their tool at http://nhdgeo.usgs.gov/viewer.htm). > > > On Wed, Apr 30, 2008 at 10:59 AM, Adam Schreiber <[EMAIL PROTECTED]> > wrote: > > > On Tue, Apr 29, 2008 at 9:14 PM, Adam Schreiber <[EMAIL PROTECTED]> > > wrote: > > > On Tue, Apr 29, 2008 at 6:15 PM, Matthew Perry <[EMAIL PROTECTED]> > > wrote: > > > > Feel free to try it out and let me know how it works. The script > > is > > > > available at > > http://perrygeo.googlecode.com/svn/trunk/gis-bin/nhd_to_osm.py > > > > It works very well on my sub-basin, 03060101. I worry about the > > length of the ways though. If anyone downloads an area adjacent to > > the lakes in my area, they would be pulling in a rather large way, in > > this case a closed way. Should large bodies of water be segmented and > > be joined using a multipolygon relation? > > > > Also, for the "holes" created by islands will those be easy to add in > > later when the script is updated to handle them? > > > > Cheers, > > > > Adam > > > > _______________________________________________ > > Talk-us mailing list > > [email protected] > > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk-us > > > >
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