This tool determines the contributing area above a set of cells in a raster.
The values of the output raster will be the compass direction of the aspect. Aspect can be thought of as the slope direction. Aspect identifies the downslope direction of the maximum rate of change in value from each cell to its neighbors. This tool creates an aspect map from an elevation data source. The results define the areas that can be seen from the observer locations. The input point locations can represent either observers (such as people on the ground or lookouts in a fire tower), or observed objects (such as wind turbines, water towers, vehicles, or other people). This tool identifies the areas that the input observer locations can see, accounting for surface topography. Slope represents the rate of change of elevation for each digital elevation model (DEM) cell. This tool creates a surface that shows the slope of the input elevation data. If you're a developer, you can access these tools through ArcGIS REST API and ArcGIS API for Python. The analysis tools are arranged in categories, which are logical groupings and do not affect how you access or An overview of each raster analysis tool is below. To learn more about accessing and running the tools, see Use the raster analysis tools. To run raster analysis tools, you must have privileges to create and publish content, and to perform imagery analysis. You can also process raster data with raster functions, and generate raster function chains and templates in the Raster Function Editor. You can use built-in raster analysis tools in ArcGIS Online directly in your web map. For example, you may need to calculate a vegetation index to get an understanding of vegetation coverage from a multiband image, or you may want to find suitable locations to build solar power plants using statewide elevation and land cover raster data. To extract useful information from imagery, you can process or analyze your data. Imagery and raster data contains invaluable information that can be used to identify patterns, find features, and understand change across landscapes. Access to the raster analysis tools in Map Viewer Classic requires the ArcGIS Image for ArcGIS Online license.