In this section, the slope (either in degrees or percentage), aspect (that is the azimuth of the slope) and first and second directional derivatives of geographical referenced grids can be computed.
The “Multi-scale Analysis” is a tool designed to perform block operations. The moving window size, in terms of number of cells, is controlled by the value entered in the “Window size” box. A collection of different algorithms is available. The first three of the list are common in geomorphology (algorithms programmed after: Wilson et al 2007, Marine Geodesy 30:3-35).
Because the methods here involve a moving window, results obtained for slope or aspect (for example) are smother than those obtained with the tools above.
Copyright © <2010>, <Joaquim Luis>
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