Using our Custom Flow Direction tool with the UKL DEM Now that we have reprojected the DEM for our study area, use the Flow Direction tool that we let’s created earlier, and modified to use a TIF file as input. Make sure that the Elevation Processing (or flow direction) tool is loaded in the ArcToolBox. If it does not appear, right click on the white area of the toolbox, select and search for the tbx file. ‘add toolbox’ Select the from tool to read the UKLDEM_albers DEM and create layers for slope, “FlowDirection Tiff” aspect, and flow direction. You should create the output layers in the same folder as your exercise 3. Press OK, and wait a few minutes for the tool to process the entire DEM file. If successful, you should see a window like that to the right, after all four model components have run. Now we will have four more layers in our Table of Contents (TOC), and we will have some interesting looking graphics. For example, the layer (and Slope layer) shows the areas having steepest ‘UKL_Drop’
Using our Custom Flow Direction tool with the UKL DEM Now that we have reprojected the DEM for our study area, let’s use the Flow Direction tool that we created earlier, and modified to use a TIF file as input. Make sure that the Elevation Processing (or flow direction) tool is loaded in the ArcToolBox. If it does not appear, right click on the white area of the toolbox, select ‘add toolbox’ and search for the tbx file. Select the “FlowDirection from Tiff” tool to read the UKLDEM_albers DEM and create layers for slope, aspect, and flow direction. You should create the output layers in the same folder as your exercise 3. Press OK, and wait a few minutes for the tool to process the entire DEM file. If successful, you should see a window like that to the right, after all four model components have run. Now we will have four more layers in our Table of Contents (TOC), and we will have some interesting looking graphics. For example, the ‘UKL_Drop’ layer (and Slope layer) shows the areas having steepest
Ex4_Terrain%20analysis_2017.docx