The Tc module subdivides the sites of a basin in the 9 topographic classes identified by the
longitudinal and transversal curvatures.
Inputs
- The !GridCoverage containing with the longitudinal curvatures;
- The !GridCoverage containing with the normal curvatures;
- The threshold value for the longitudinal curvatures;
- The threshold value for the normal curvatures;
Output
The program produces two different output matrixes, one with the 9 classes schematized conventionally in the following way:
- 10 planar -planar sites
- 20 convex-planar sites
- 30 concave- planar sites
- 40 planar- convex sites
- 50 convex-convex sites
- 60 concave-convex sites
- 70 planar-concave sites
- 80 convex-concave sites
- 90 concave-concave sites.
The second output file contains an aggregation of these classes in the three fundamentals (concave, convex and planar sites),
indexed as follows:
- 15 concave sites (classes 30,70, 90)
- 25 planar sites (class 10)
- 35 convex sites (classes 20, 40, 50, 60, 80).
References
- [Bibliography#17, 17], A. Parsons, 1988