GRASS GIS Manual: r.ipso.py

Note: This document is for an older version of GRASS GIS that is outdated. You should upgrade, and read the current addon manual page.

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: 2012-04-10 11:50:03 -0700 (Tue, 10 Apr 2012) $

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