UVA1_UV: Calculate UVA1:UV photon ratio from spectral irradiance.

In photobiologyPlants: Plant Photobiology Related Functions and Data

Calculate UVA1:UV photon ratio from spectral irradiance.

Description

This function returns the UVA1:UV photon ratio of a light source spectrum.

Usage

UVA1_UV(spct, std = "CIE", use.cached.mult = FALSE, use.hinges = TRUE)

Arguments

spct	an object of class "source.spct"
std	select which definition of UVA1 should be used, defaults to "CIE". For UV "ISO" is always used.
use.cached.mult	logical indicating whether multiplier values should be cached between calls
use.hinges	logical indicating whether to use hinges to reduce interpolation errors

Value

a single numeric nondimensional value giving the UVA:UV photon ratio, with name attribute set to the name of the wavebands, with "(q:q)" appended.

See Also

link[photobiologyWavebands]{UV}, link[photobiologyWavebands]{UVA}.

Examples

UVA1_UV(sun.spct)

photobiologyPlants documentation built on May 31, 2023, 6:08 p.m.