convert_SW_to_PAR: Convert from shortwave to photosynthetically active radiation

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

Convert from shortwave to photosynthetically active radiation

Description

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

Usage

convert_SW_to_PAR(sw, coef = 2.114)

Arguments

sw	Vector of shortwave radiation (W/m^2)
coef	Numerical coefficient to convert SW (W/m^2) to PAR (umol/m^2/sec). Defaults to value from Britton and Dodd (1976).

Value

Numeric vector of PAR values in units umol/m^2/sec

Examples

convert_SW_to_PAR(sw=800)
convert_SW_to_PAR(sw=800, coef=2.1)
convert_SW_to_PAR(unitted::u(473, "W m^-2"))

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