r.prominence - GRASS GIS manual

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

DESCRIPTION
EXAMPLE
AUTHOR

DESCRIPTION

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.

EXAMPLE

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

AUTHOR

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