Are you aware of the HydroSHEDS product: http://www.worldwildlife.org/freshwater/hydrosheds.cfm
Ned > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:geowanking- > [EMAIL PROTECTED] On Behalf Of Mike Liebhold > Sent: Friday, July 20, 2007 12:01 PM > To: [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED]; Open Forum on Participatory Geographic Information > Systems and Technologies; [email protected] > Subject: [Geowanking] fwd: Advice on watershed mapping idea > > Amy Johnson wrote: > > I'm looking for some input from people on an idea I have to develop a > > website that catalogs watersheds. > > Wow! what a great idea ( below) An Open Watershed Map aggregator > would be an extremely useful resource. As you mention below, lots of > regional groups are working within watersheds as the natural basic > boundary for local ecologic restoration and management, rather than > political boundaries which arbitrarily cross habitats and ecosystems. > > I wonder how much of watershed boundries could be generated > algorithmically along topographic ridges and high points. If you don't > mind, I am cross-post this to the geowanking list of GIS hackers, who > will definitely have some great ideas on how to do this - technically. > http://lists.burri.to/mailman/listinfo/geowanking > > Open Street Map, is an already existing international cooperative > mapping movement to create a free map of the world, that has focused, so > far mostly on urban street maps, but is definitely a kindred group. many > contributors might be interested in joining your project and sharing > hard earned expertise in grassroots map making. > http://www.openstreetmap.org/ > > Cheers! > > Mike > > Mike Liebhold > Senior Researcher > Institute for the Future > > - - - - - - - - - - - - - - - - > > Amy Johnson wrote: > > My initial thinking is to start with North America (mostly because > > that's where I live) and put together boundaries for watersheds as > > communities define them. For instance, in Portland, Oregon, there are > > several groups that monitor watersheds. There is the Columbia Slough > > watershed organization, the Johnson Creek watershed organization, etc. > > These are managed on the local level, then on the city level, then > > state wide there are management plans that affect them, and the > > federal government also affects them. > > > > The way I would catalog the watersheds would be on a web mapping > > service, so they would be available online for people to use in their > > own mapping applications through a web service. > > > > My hope is to provide the beginnings of a way to look at data for this > > particular organizational boundary, possibly allowing it to extend to > > different scales as overlapping information becomes available. > > > > I am a programmer with a keen interest in ecosystems, so I am probably > > missing a lot of the nuances on the earth science side of things and > > need some advice on whether this would be useful. > > > > > > The Open Forum on Participatory Geographic Information Systems and > > Technologies is managed by www.iapad.org and hosted by www.ppgis.net > > PGIS, PPGIS and community mapping bibliography is found at > > http://ppgis.iapad.org/bibliography.htm > > Dgroups is a joint initiative of Bellanet, DFID, Hivos, ICA, IICD, > > OneWorld, UNAIDS > > --- You are currently subscribed to ppgis as: [EMAIL PROTECTED] > > To unsubscribe send a blank email to [EMAIL PROTECTED] > > > > > > _______________________________________________ > Geowanking mailing list > [email protected] > http://lists.burri.to/mailman/listinfo/geowanking _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
