UVB_UVA {photobiologyPlants}

Calculate UVB:UVA photon ratio from spectral irradiance.

Description

This function returns the UVB:UVA photon ratio of a light source spectrum.

Usage

UVB_UVA(spct, std = "ISO", use.cached.mult = FALSE, use.hinges = TRUE)

Arguments

spct

an object of class "source.spct".

std

select which definition of UVB and UVA should be used, defaults to "ISO".

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 dimensionless value giving the UVB:UVA photon ratio, with name attribute set to the name of the wavebands, with "(q:q)" appended.

See Also

UVB, UV and q_ratio.

Examples

UVB_UVA(sun.spct)