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.cell.area - Calculate cell sizes within the computational region
KEYWORDS
raster,
statistics
SYNOPSIS
r.cell.area
r.cell.area --help
r.cell.area output=name units=string [--overwrite] [--help] [--verbose] [--quiet] [--ui]
Flags:
- --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:
- output=name [required]
- Output grid of cell sizes
- units=string [required]
- Units for output areas
- Options: m2, km2
r.cell.area uses the current computational region to compute the area of each raster cell. It can do so on a projected coordinate system or on a geographic coordinate system; the latter is accomplished via the latitude of the cell's midpoint. This approximation can generate ~1% error with coarse lat/lon cells near the poles.
Output units can be either square meters or square kilometers.
This module is useful for determining the flow accumulation area to weight flow accumulation algorithms by rainfall and/or on lat/lon grids.
r.mapcalc
Andrew D. Wickert
SOURCE CODE
Available at:
r.cell.area 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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GRASS Development Team,
GRASS GIS 7.8.8dev Reference Manual