As with everything, proceed with caution. The metadata for that layer states:
"These data were automated to provide a suitable geographic information system (GIS) data layer depicting the historical shoreline for the United States. These data are derived from shoreline data that were produced by the NOAA National Ocean Service including its predecessor agencies" Checking it against other shorelines in my area (Oregon coast) shows that most of the river mouths are depicted in this layer before they had jetties, and areas of high erosion/accretion are substantially different. Also in one location (-124.286565 42.042545) it is showing an ocean pier that absolutely does not exist today. One nice thing is that it has a field called "SURVEYDATE" that reports that that particular part of the composite shoreline dates from 01/01/1928.... so I'd pay attention to that field if you're wondering about if the data is worth the effort for your area... Tanya On Wed, Jul 13, 2011 at 12:07 PM, Josh Doe <j...@joshdoe.com> wrote: > On Wed, Jul 13, 2011 at 3:01 PM, Clifford Snow <cliff...@snowandsnow.us> > wrote: >> >> >> On Wed, Jul 13, 2011 at 11:47 AM, Josh Doe <j...@joshdoe.com> wrote: >>> >>> Has anyone looked at the NOAA Composite Shoreline? It seems to have much >>> better accuracy (as in orders of magnitude better) than the PGS shoreline >>> that was imported, at least for the small portion I checked in Virginia. >>> Unless there are better sources, I'll probably use this to fixup Virginia's >>> coast piece by piece in JOSM at some point. >> >> Can you point me to the NOAA Composite Shoreline? > > Oops, forgot a link: > http://shoreline.noaa.gov/data/datasheets/composite.html > > It's available as a single 200MB shapefile: > http://shoreline.noaa.gov/data/datasheets/noaa_composite.zip > > All the other federal government shoreline datasets are listed here: > http://shoreline.noaa.gov/index.html > > -Josh > > _______________________________________________ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us > > _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us