convert_PAR_to_SW: Convert from photosynthetically active to shortwave radiation

In USGS-R/streamMetabolizer: Models for Estimating Aquatic Photosynthesis and Respiration

Convert from photosynthetically active to shortwave radiation

Description

Convert photosynthetically active radiation (PAR) to shortwave radiation (SW). Uses a fixed ratio between PAR and SW, ignoring the minor seasonal changes in this ratio (see Britton and Dodd (1976)).

Usage

convert_PAR_to_SW(par, coef = 0.473)

Arguments

par	Vector of photosynthetically active radiation (400-700 nm; umol/m^2/sec)
coef	Numerical coefficient to convert PAR (umol/m^2/sec) to SW (W/m^2). Defaults to value from Britton and Dodd (1976).

Value

Numeric vector of shortwave values with units W/m^2

Examples

convert_PAR_to_SW(par=400, coef=0.47)
convert_PAR_to_SW(unitted::u(1000, "umol m^-2 s^-1"))

USGS-R/streamMetabolizer documentation built on Aug. 15, 2023, 7:50 a.m.