Thomas Adams-2 wrote > Hello friends! > > Things are not going well here in the U.S. on the environmental front. > Among the things I have been working on is grassroots (no pun intended) > environmental activism to stop the construction of 2, 42 inch (> 1 m) > diameter, high-pressure natural gas pipelines which will be constructed > through the Appalachian Mountains (steep slopes, folded, thrust-faulted, > seismically active, with lots of Karst geology, etc...) an environmental > nightmare. > > The State of Virginia is allowing a final comment period ending June 1 on > specified stream-crossing locations by the pipeline, many 1st order > stream, > totalling about 400 locations. Comments MUST be addressed on a > site-by-site > basis, dealing with erosion and sedimentation impacts on water quality. > > I need to automate a process (thinking GRASS + R + knitr) to develop > individual reports for each location (I have IDs, lat-long values). What > I'm asking for are suggestions of what I might include in my analyses that > are site-specific, which I could automate through some scripting. > > Since I have each stream-crossing location I could use that as a center > for > a GRASS region for the analyses. One thought is to try to calculate scour > in the stream channels using, among many things, stream gradient; also > potentially, erosion based on RUSLE, etc. Most areas are forested (which > have been cut down) with agricultural lands. > > Any high-level suggestions?? > > Best, > Tom > > -- > Thomas E Adams, III > 1724 Sage Lane > Blacksburg, VA 24060
> tea3rd@ > (personal) > tea@ > (work) > > 1 (513) 739-9512 (cell) > > _______________________________________________ > grass-user mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/grass-user have a look into r.basin https://grass.osgeo.org/grass74/manuals/addons/r.basin.html which calculates some general upstream catchment characteristics at any point location along a river. ----- best regards Helmut -- Sent from: http://osgeo-org.1560.x6.nabble.com/Grass-Users-f3884509.html _______________________________________________ grass-user mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-user
