ClimInd (version 0.1-2)

fwi: Canadian Fire Weather Index

Description

The Canadian Forest Fire Weather Index is an indicator of fire weather intensity and is used to represent potential fire danger. It is computed from daily values of precipitation, temperature, near-surface wind and relative humidity dimensionless, see Van Wagner (1987).

Usage

fwi(taverage, rh, w, pr, dew_point, lat, data_names = NULL,
  time.scale = YEAR, na.rm = FALSE)

Arguments

taverage

medium temperature

rh

relative humidity

w

average wind

pr

precipitation

dew_point

dew_point

lat

latitude

data_names

names of each period of time

time.scale

month, season or year

na.rm

logical. Should missing values (including NaN) be removed?

Value

FWI

References

Van Wagner CE. 1987. Development and structure of the Canadian forest fire weather index system. Technical Report 35, Canadian Forestry Service: Ottawa, Ontario. Bedia, J., Herrera, S., Guti<U+00E9>rrez, J. M., Zavala, G., Urbieta, I. R., & Moreno, J. M. (2012). Sensitivity of fire weather index to different reanalysis products in the iberian peninsula. Natural Hazards and Earth System Science, 12(3), 699-708. doi:10.5194/nhess-12-699-2012 ## @importance Important application for fire prevention

Examples

# NOT RUN {
data(data_all)
fwi(taverage = data_all$tg, rh = data_all$humidity, w = data_all$wind, 
     pr = data_all$rr, dew_point=data_all$dewpoint, lat = data_all$lat)
# }