UVA_PAR

This function returns the UVA:PAR 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

UVA_PAR function

<dl><dt>spct</dt>
<dd>an object of class "source.spct".</dd>
<dt>std</dt>
<dd>select which definition of UVA should be used,
defaults to "ISO".</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 UVA:PAR photon ratio from spectral irradiance. — UVA_PAR

<dl>

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


<dt>std</dt>
<dd>select which definition of UVA should be used,
defaults to "ISO".</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>

UVA_PAR: Calculate UVA:PAR photon ratio from spectral irradiance.

Description

Usage

Value

Arguments

See Also

Examples