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i.biomassgrass - Online in the Cloud

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This is the command i.biomassgrass 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.biomass - Computes biomass growth, precursor of crop yield calculation.

KEYWORDS


imagery, biomass, FPAR, yield

SYNOPSIS


i.biomass
i.biomass --help
i.biomass fpar=name lightuse_efficiency=name latitude=name dayofyear=name
transmissivity_singleway=name water_availability=name output=name [--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:
fpar=name [required]
Name of fPAR raster map

lightuse_efficiency=name [required]
Name of light use efficiency raster map (UZB:cotton=1.9)

latitude=name [required]
Name of degree latitude raster map [dd.ddd]

dayofyear=name [required]
Name of Day of Year raster map [1-366]

transmissivity_singleway=name [required]
Name of single-way transmissivity raster map [0.0-1.0]

water_availability=name [required]
Value of water availability raster map [0.0-1.0]

output=name [required]
Name for output daily biomass growth raster map [kg/ha/d]

DESCRIPTION


i.biomass calculates the biomass growth for a day after [1][2]. Input:

· fPAR, the modified Photosynthetic Active Radiation for crops.

· Light Use Efficiency [0.0-1.0], in Uzbekistan cotton is at 1.9 most of the time.

· Latitude [0.0-90.0], from r.latlong.

· DOY [1-366].

· Transmissivity of the Atmosphere single-way [0.0-1.0], mostly around 0.7+ in clear
sky.

· Water availability [0.0-1.0], possibly using direct output from i.eb.evapfr.

NOTES


It can use the output of i.eb.evapfr directly as water availability input.

TODO


Remove Latitude, DOY and Tsw from input and replace with a raster input compatible with
r.sun output.

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