DESCRIPTION

r.hypso produces the hypsometric and hypsographic curve related to a digital elevation model and prints the percentiles.

NOTES

The hypsographic 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 hypsometric curve uses adimensional axes.

Flags:

-a: generates hypsometric curve

-b: generates hyposographic curve

EXAMPLE

r.hypso -b map=elevation image=/tmp/hypso
generates hypsographic curve, and 
r.hypso -a map=elevation image=/tmp/hypso
generates hypsometric curve.

Dependencies

SEE ALSO

r.basin,

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 (grass-dev AT lists DOT osgeo DOT org), Massimo Di Stefano, Francesco Di Stefano

Last changed: $Date$