Note: This document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade, and read the current manual page.
NAME
r.prominence - Calculates Llobera's prominence index
KEYWORDS
SYNOPSIS
r.prominence
r.prominence --help
r.prominence [-algrq] input=name output=name radius=integer [--help] [--verbose] [--quiet] [--ui]
Flags:
- -a
- Calculate absolute differences
- -l
- Local data normalisation
- -g
- Global data normalisation
- -r
- Use quadratic neighbourhood
- -q
- Disable on-screen progress display
- --help
- Print usage summary
- --verbose
- Verbose module output
- --quiet
- Quiet module output
- --ui
- Force launching GUI dialog
Parameters:
- input=name [required]
- FP raster map for which to calculate index
- output=name [required]
- FP raster to store output
- radius=integer [required]
- Radius of neighbourhood in map cells
r.prominence calculates the average difference between a
central cell and its neighbors. It approximated the terrain 'ruggedness'
by looking at average differences in elev_lid792_1m within a given neighborhood
The
radius is specified in number of map rows/columns.
North Carolina sample region:
g.region raster=elev_lid792_1m
# get region rows/columns
g.region -g
# calculate prominence (radius of 50 map rows)
r.prominence input=elev_lid792_1m output=prominence radius=50
# visualize over shaded DEM
r.relief input=elev_lid792_1m output=elev_lid792_1m_shaded
d.mon wx0
d.shade shade=elev_lid792_1m_shaded color=prominence
Benjamin Ducke (benjamin.ducke - oxfordarch.co.uk)
Update to GRASS GIS 7: Markus Neteler -
mundialis
SOURCE CODE
Available at:
r.prominence source code
(history)
Latest change: Wednesday Feb 01 10:50:58 2023 in commit: 8fea19377aeedf6683e1372bbdc60577c40f14cd
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GRASS Development Team,
GRASS GIS 8.3.3dev Reference Manual