gfmcRaster: Grass Fuel Moisture Raster Calculation
In cffdrs: Canadian Forest Fire Danger Rating System
gfmcRaster R Documentation
Grass Fuel Moisture Raster Calculation
Description
Calculation of the Grass Fuel Moisture Code. This calculates the
moisture content of both the surface of a fully cured matted grass layer and
also an equivalent Grass Fuel Moisture Code. All equations come from Wotton
(2009) as cited below unless otherwise specified.
Usage
gfmcRaster(input, GFMCold = 85, time.step = 1, roFL = 0.3, out = "GFMCandMC")
Arguments
input
[raster stack]
temp (required) Temperature (centigrade)
rh (required) Relative humidity (%)
ws (required) 10-m height wind speed (km/h)
prec (required) 1-hour rainfall (mm)
isol (required) Solar radiation (kW/m^2)
GFMCold
GFMC from yesterday (double, default=85)
time.step
The hourly time steps (integer hour, default=1)
roFL
Nominal fuel load of the fine fuel layer (kg/m^2 double, default=0.3)
out
Output format (GFMCandMC/MC/GFMC/ALL, default=GFMCandMC)
Value
Returns a raster stack of either MC, GMFC, GFMC and MC or All
References
Wotton, B.M. 2009. A grass moisture model for the Canadian
Forest Fire Danger Rating System. In: Proceedings 8th Fire and
Forest Meteorology Symposium, Kalispell, MT Oct 13-15, 2009.
Paper 3-2. https://ams.confex.com/ams/pdfpapers/155930.pdf
cffdrs documentation built on Aug. 11, 2022, 5:08 p.m.
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| gfmcRaster | R Documentation |
Grass Fuel Moisture Raster Calculation
Description
Calculation of the Grass Fuel Moisture Code. This calculates the moisture content of both the surface of a fully cured matted grass layer and also an equivalent Grass Fuel Moisture Code. All equations come from Wotton (2009) as cited below unless otherwise specified.
Usage
gfmcRaster(input, GFMCold = 85, time.step = 1, roFL = 0.3, out = "GFMCandMC")
Arguments
input |
[raster stack]
| ||||||||||||||||
GFMCold |
GFMC from yesterday (double, default=85) | ||||||||||||||||
time.step |
The hourly time steps (integer hour, default=1) | ||||||||||||||||
roFL |
Nominal fuel load of the fine fuel layer (kg/m^2 double, default=0.3) | ||||||||||||||||
out |
Output format (GFMCandMC/MC/GFMC/ALL, default=GFMCandMC) |
Value
Returns a raster stack of either MC, GMFC, GFMC and MC or All
References
Wotton, B.M. 2009. A grass moisture model for the Canadian Forest Fire Danger Rating System. In: Proceedings 8th Fire and Forest Meteorology Symposium, Kalispell, MT Oct 13-15, 2009. Paper 3-2. https://ams.confex.com/ams/pdfpapers/155930.pdf
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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