I'm new to GIS and I'm busy doing some work in ArcGIS Desktop but I've hit a wall. I have to find a new land fill site for the town that I live in. I have to select the landfill site according to specific criteria. The site must:
Table 1: Distance from rivers specifications
|Slope||Min Distance (m) from Non Perennial Rivers||Min Distance (m) from perennial rivers|
These are the data sets that I have available.
|Landsat||Landsat image of study area||IMG|
|DEM||A DEM of the study area||GRID|
|Roads||All roads digitized form 1:50 000 topo map||Shape|
|Rivers||All rivers digitized form 1:50 000 topo map||Shape|
|Rivers_area||All rivers digitized form 1:50 000 topo map||Shape|
|Dams||All dams digitized form 1:50 000 topo map||Shape|
|Ca_loc||All local reserves areas digitized form 1:50 000 topo map||Shape|
|Ca_cnc||All nature reserves digitized form 1:50 000 topo map||Shape|
So this is what I've done already:
I'm not sure if I should have buffered the dams and of that was the best option.
But what I'm actually struggling with is step 7 of the first list. I'm not sure how to tackle this problem.
Could someone please help me? I would really appreciate any help.
NB: if you need more info to help me feel free to contact me on firstname.lastname@example.org then we can perhaps arrange a Skype call.
You may be looking at a 3D buffer to find distances on a sloped surface. You can only do this if you have access to 3D analyst.
Also, for landfills, you may want to bring in a soils layer. You don't want all that garbage leaking into your ground water supply so a low permeable area may be necessary.