This is the command i.albedograss that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
i.albedo - Computes broad band albedo from surface reflectance.
KEYWORDS
imagery, albedo, reflectance
SYNOPSIS
i.albedo
i.albedo --help
i.albedo [-mnlacd] input=name[,name,...] output=name [--overwrite] [--help] [--verbose]
[--quiet] [--ui]
Flags:
-m
MODIS (7 input bands:1,2,3,4,5,6,7)
-n
NOAA AVHRR (2 input bands:1,2)
-l
Landsat 5+7 (6 input bands:1,2,3,4,5,7)
-a
ASTER (6 input bands:1,3,5,6,8,9)
-c
Aggressive mode (Landsat)
Albedo dry run to calculate some water to beach/sand/desert stretching, a kind of
simple atmospheric correction
-d
Soft mode (MODIS)
Albedo dry run to calculate some water to beach/sand/desert stretching, a kind of
simple atmospheric correction
--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:
input=name[,name,...] [required]
Name of input raster map
output=name [required]
Name for output raster map
DESCRIPTION
i.albedo calculates the albedo, that is the Shortwave surface reflectance in the range of
0.3-3 micro-meters. It takes as input individual bands of surface reflectance originating
from MODIS, AVHRR, Landsat or Aster satellite sensors and calculates the albedo for those.
This is a precursor to r.sun and any energy-balance processing.
NOTES
It assumes MODIS product surface reflectance in [0;10000].
TODO
Maybe change input requirement of MODIS to [0.0-1.0]?
Use i.albedograss online using onworks.net services