GRASS GIS Manual: r.ipso.py

NAME

r.ipso.py

DESCRIPTION

r.ipso produces the Ipsometric and Ipsographic curve related to a digital elevation model and prints the percentiles.

NOTES

The ipsographic curve gives the distribution of surfaces in different altitude ranges. Each point on the function reports on the y-axis the elevation and on the x-axis the portion of the basin surface placed above such elevation value. The ipsometric curve uses adimensional axes.

Flags:

-a : generates ipsometric curve

-b : generates iposographic curve

EXAMPLE

r.ipso.py -b map=elevation.10m image=path/to/output/prefix

generates ipsographic curve, and

r.ipso.py -a map=elevation.10m image=path/to/output/prefix

generates ipsometric curve

Dependencies

Matplotlib

REFERENCES

Rodriguez-Iturbe I., Rinaldo A. — Fractal River Basins, Chance and Self-Organization. Cambridge Press (2001)

In Italian: Di Leo M., Di Stefano M., Claps P., Sole A. — Caratterizzazione morfometrica del bacino idrografico in GRASS GIS (Morphometric characterization of the catchment in GRASS GIS environment), Geomatics Workbooks, n. 9 (2010)

AUTHORS

Margherita Di Leo (dileomargherita AT gmail DOT com), Massimo Di Stefano, Francesco Di Stefano

Last changed: $Date$

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