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Convert from shortwave to photosynthetically active radiation

Source: R/convert_PAR_to_SW.R
convert_SW_to_PAR.Rd

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)
#> [1] 1691.2
convert_SW_to_PAR(sw=800, coef=2.1)
#> [1] 1680
convert_SW_to_PAR(unitted::u(473, "W m^-2"))
#> unitted numeric (umol m^-2 s^-1)
#> [1] 999.922