UVAlw_UV

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

Provides functions for quantifying visible (VIS) and ultraviolet
(UV) radiation in relation to the photoreceptors Phytochromes,
Cryptochromes, and UVR8 which are present in plants. It also includes data
sets on the optical properties of plants. Part of the 'r4photobiology'
suite, Aphalo P. J. (2015) <doi:10.19232/uv4pb.2015.1.14>.

Pedro Aphalo

photobiologyPlants

Plant Photobiology Related Functions and Data

Pedro J. Aphalo

UVAlw_UV function

<dl><dt>spct</dt>
<dd>an object of class "source.spct".</dd>
<dt>std</dt>
<dd>select which definition of UVAlw should be used,
defaults to "plants". For UV "ISO" is always used.</dd>
<dt>use.cached.mult</dt>
<dd>logical indicating whether multiplier values should be
cached between calls.</dd>
<dt>use.hinges</dt>
<dd>logical indicating whether to use hinges to reduce
interpolation errors.</dd></dl>

Arguments

Calculate UVAlw:UV photon ratio from spectral irradiance. — UVAlw_UV

<dl>

<dt>spct</dt>
<dd>an object of class "source.spct".</dd>


<dt>std</dt>
<dd>select which definition of UVAlw should be used,
defaults to "plants". For UV "ISO" is always used.</dd>


<dt>use.cached.mult</dt>
<dd>logical indicating whether multiplier values should be
cached between calls.</dd>


<dt>use.hinges</dt>
<dd>logical indicating whether to use hinges to reduce
interpolation errors.</dd>

</dl>

UVAlw_UV: Calculate UVAlw:UV photon ratio from spectral irradiance.

Description

Usage

Value

Arguments

See Also

Examples