par.to.sw {LakeMetabolizer}

Convert PAR to shortwave

Description

Returns incoming shortwave radiation by converting PAR measuremt.

Usage

par.to.sw.base(par, coeff=0.473)

par.to.sw(data, par.col='par', coeff=0.473)

Arguments

data

Object of class data.frame with column name 'par' (units umol/m^2/sec)

par.col

String of alternative name for PAR column

coeff

Numerical coefficient to convert PAR (umol/m^2/sec) to SW (W/m^2). Defaults to value from Britton and Dodd (1976).

par

Numeric vector of PAR values (umol/m^2/sec)

Value

#For par.to.sw

Object of class data.frame with column name 'sw' and other values from ts.data

#For par.to.sw.base

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

Author(s)

LakeMetabolizer

References

Britton, C. M., and J. D. Dodd. Relationships of photosynthetically active radiation and shortwave irradiance. Agricultural Meteorology 17, no. 1 (1976): 1-7.

See Also

sw.to.par

Examples

par <- 800
par.to.sw.base(par)