![]() Upwardly convex at that cell, and flow will be decelerated. A negative value (A) indicates that the surface is It affects theĪcceleration and deceleration of flow across the surface. The Profile curvature is parallel to the slope and indicates the direction of maximum slope. The various curvature types help visualize different aspects of the slope. Will highlight different aspects of the shape of the slope. Units are feet and your x,y units are meters, you would use a z-factor of 0.3048 to convert your z units fromįeet to meters, since 1 foot = 0.3048 meters. The z-factor when calculating the final output surface. The z-values of the input surface are multiplied by Measure, the z-factor should be set to 1. If the x,y units and z units are in the same units of The z-factor adjusts the units of measure for the z units when they are different from the x,y units of the input surface. It affects the convergence and divergence of flow across a surface. Planform-Is perpendicular to the direction of the maximum.Profile-Is parallel to the slope and indicates the direction of maximum slope.Standard-Combines both the Profile and Planform curvatures.The curvature type accentuates different aspects of the slope. It is possible to exceed these ranges for certain raster surfaces. The reasonably expected values for a curvature raster for a hilly area (moderate relief) can vary from -0.5 to 0.5 while for steep, rugged mountains (extreme relief), the values can vary between -4 and 4. The units of the curvature output raster are one hundredth (1/100) of a z-unit. ![]()
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