We don't have 3D analyst, but the city has given us a DEM for our 280 acre campus and they processed it to give us files with the elevation data, the aspect, the slope, and maybe one other file. (I guess we can't work with the TIN with only Spatial Analyst?).
Anyway, we are doing an estimate of soil erosion from our campus and need the slope length for the soil loss equation (l). I have the equation to convert L and S values to the composite LS factor, but I am having trouble figuring out exactly *how* to get the slope length. We are working on a 5 ft grid spacing, and it seems lame for us to just fudge the slope length with crude rise/run calculations by hand!
I went to this website:
but sadly I don't have a clue about how to implement the coding or if I even have the right tools to do that. I am still a newbie user myself, unfortunately! This is for a student research project and we want to present the results, but it isn't high powered super research. Thanks for any suggestions!