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Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.

NAME

r.hypso - Outputs a hypsometric and hypsographic graph.

KEYWORDS

raster

SYNOPSIS

r.hypso
r.hypso --help
r.hypso [-ab] map=name image=image [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-a
Generate hypsometric curve
-b
Generate hypsographic curve
--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

map=name [required]
Name of input elevation raster map
image=image [required]
Name for output graph file (png)

Table of contents

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

SOURCE CODE

Available at: r.hypso source code (history)

Latest change: Mon Jun 28 07:54:09 2021 in commit: 1cfc0af029a35a5d6c7dae5ca7204d0eb85dbc55


Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.

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