A simplified fire danger proxy based on temperature, humidity, wind speed,
and recent precipitation. This is NOT the Canadian Forest Fire Weather
Index (Van Wagner 1987); for the full FWI system, use the cffdrs package.
Usage
ck_fire_danger(tavg, humidity, wind_speed, precip)
Arguments
- tavg
Numeric vector of temperatures (degrees C).
- humidity
Numeric vector of relative humidity (percent, 0-100).
- wind_speed
Numeric vector of wind speeds (km/h).
- precip
Numeric vector of daily precipitation (mm).
Value
A data frame with columns value, index, and unit.
Examples
ck_fire_danger(
tavg = c(30, 25, 35),
humidity = c(20, 40, 15),
wind_speed = c(25, 10, 30),
precip = c(0, 5, 0)
)
#> value index unit
#> 1 14.666667 fire_danger unitless
#> 2 3.333333 fire_danger unitless
#> 3 19.833333 fire_danger unitless