photobiology (version 0.9.6)

photon_irradiance: Photon irradiance

Description

This function returns the photon irradiance for a given waveband of a radiation spectrum, optionally applies a BSWF.

Usage

photon_irradiance(w.length, s.irrad, w.band = NULL, unit.in = "energy",
  check.spectrum = TRUE, use.cached.mult = FALSE,
  use.hinges = getOption("photobiology.use.hinges", default = NULL))

Arguments

w.length

numeric array of wavelength (nm)

s.irrad

numeric array of spectral irradiances, by default as energy (W m-2 nm-1)

w.band

waveband

unit.in

character Values recognized "photon" or "energy"

check.spectrum

logical Flag telling whether to sanity check input data, default is TRUE

use.cached.mult

logical Flag telling whether multiplier values should be cached between calls

use.hinges

logical Flag telling whether to use hinges to reduce interpolation errors

Value

• A single numeric value with no change in scale factor: [W m-2 nm-1] -> [W m-2]

See Also

Other irradiance functions: e_fluence, e_irrad, energy_irradiance, fluence, irradiance, irrad, q_fluence, q_irrad

Examples

with(sun.data, photon_irradiance(w.length, s.e.irrad))
with(sun.data, photon_irradiance(w.length, s.e.irrad, new_waveband(400,700)))