New answers tagged cost-path
I would probably try it with the Hydrology-Toolbox and "Flow Direction" and "Watershed"
You can do it with curvature, a bit. Have a read of this: http://blogs.esri.com/esri/arcgis/2010/10/27/understanding-curvature-rasters/ This has better pictures: http://www.ian-ko.com/ET_Surface/UserGuide/Raster/ETG_RasterCurvature.htm
You can create the distance raster using the Euclidean Distance tool, then you can combine that with your DEM using raster calculator and it looks like you already know the rest
If you are wanting to use slope as a factor you will have to use a DTM anyway, https://www.ordnancesurvey.co.uk/opendatadownload/products.html use "OS Terrain 50" and make sure the Supply Format is "ASCII Grid" so you get a raster. the Slope tool is Spatial analyst>Surface >slope. Are the 10 sites on the water feature? As if they are you could just either ...
In order to perform this task in ArcGIS 10.1, you will require the Spatial Analyst Extension which can perform analysis on rasters including Least-Cost Path. ESRI has created a series of tutorials to get you started with Spatial Analyst. The last of which creates the optimal route to a site. If you follow the tutorial you should be on your way to finding ...
The following script performs a least cost path analysis. Input parameters are a cost surface raster (e.g. slope) and start and stop coordinates. A raster with the created path is returned. It requires the skimage library and GDAL. For example the least cost path between point 1 and point 2 is created based on a slope raster: import gdal, osr from ...
I strongly doubt there is anything in ArcGIS 10 (or any other GIS for that matter) that will accomplish this accurately. One basis for this doubt is that I researched similar problems years ago and, finding no solutions, developed a general one. After five years of close review of related literature (including the GIS journals on which ESRI relies for ...
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