photobiology (version 0.10.6)

irradiance: Photon or energy irradiance from spectral energy or photon irradiance.

Description

Energy or photon irradiance for one or more wavebands of a radiation spectrum.

Usage

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

Arguments

w.length

numeric Vector of wavelength (nm).

s.irrad

numeric vector of spectral (energy) irradiances (W m-2 nm-1).

w.band

waveband or list of waveband objects The waveband(s) determine the region(s) of the spectrum that are summarized.

unit.out

character Allowed values "energy", and "photon", or its alias "quantum".

unit.in

character Allowed values "energy", and "photon", or its alias "quantum".

check.spectrum

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

use.cached.mult

logical Flag indicating whether multiplier values should be cached between calls.

use.hinges

logical Flag indicating whether to insert "hinges" into the spectral data before integration so as to reduce interpolation errors at the boundaries of the wavebands.

Value

A single numeric value or a vector of numeric values with no change in scale factor: [W m-2 nm-1] -> [mol s-1 m-2]

See Also

Other low-level functions operating on numeric vectors.: as_energy(), as_quantum_mol(), calc_multipliers(), div_spectra(), energy_irradiance(), energy_ratio(), insert_hinges(), integrate_xy(), interpolate_spectrum(), l_insert_hinges(), oper_spectra(), photon_irradiance(), photon_ratio(), photons_energy_ratio(), prod_spectra(), s_e_irrad2rgb(), split_energy_irradiance(), split_photon_irradiance(), subt_spectra(), sum_spectra(), trim_tails(), v_insert_hinges(), v_replace_hinges()

Examples

# NOT RUN {
with(sun.data, irradiance(w.length, s.e.irrad, new_waveband(400,700), "photon"))
# }