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: Thursday Feb 03 09:32:35 2022 in commit: f17c792f5de56c64ecfbe63ec315307872cf9d5c
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GRASS Development Team,
GRASS GIS 8.4.1dev Reference Manual