An overview of the Surface toolset

With the Surface tools, you can quantify and visualize a terrain landform represented by a digital elevation model.

Starting with a raster elevation surface as input, with these tools, you can gain information by producing a new dataset that identifies a specific pattern within an original dataset. You can derive patterns that were not readily apparent in the original surface, such as contours, angle of slope, steepest downslope direction, shaded relief, and visibility.

Each surface tool provides insight into a surface that can be used as an end in itself or as input to additional analysis.

The following table lists the available tools and provides a brief description of each.

Tools of the Surface toolset

Tool	Description
Contour	Creates a feature class of contours from a raster surface.
Geodesic Viewshed	Determines the raster surface locations visible to a set of observer features using geodesic methods.
Geomorphon Landforms	Calculates the geomorphon pattern of each cell of an input surface raster and classifies calculated geomorphons into common landform types.
Hillshade	Creates a shaded relief from a surface raster by considering the illumination source angle and shadows.
Observer Points	Identifies which observer points are visible from each raster surface location.
Slope	Identifies the slope (gradient or steepness) from each cell of a raster.
Surface Parameters	Determines parameters of a raster surface such as aspect, slope, and curvatures.
Viewshed	Determines the raster surface locations visible to a set of observer features.
Visibility	Determines the raster surface locations visible to a set of observer features, or identifies which observer points are visible from each raster surface location.