R/convertUnits.R

Defines functions convert_mumolPers_to_gPerday

Documented in convert_mumolPers_to_gPerday

convert_mumolPers_to_gPerday <- function(
	### convert vom mumol CO2 / second to g C / day
	flux	##<< numeric vector or array: flux
	,molarMass=12.011	##<< numeric scalar: the molar mass of the element of interest (default carbon) in g/mol
){
	##value<< numeric vector of flux in other units
	##details<<
	## Concentration measures are usually given by micromol CO2 across several seconds, and
	## the flux, i.e. its slope hence given in micromol CO2 per second.
	## To compare carbon balances, the units of gC per day are more convenient.  
	##
	## mumol are converted to mol by /1e6
	## mol are converted to gC by *12.011
	## per second are converted to per day by *3600*24
	# flux * 1e-6 * 12 * 3600*24
	##
	## In order to convert masses of other elements, specify the molarMass argument, 
	## e.g. for converting mol H2O per second to H2O per day, 
	## specify \code{molarMass=2*1.008+15.999}.
	flux * molarMass * 0.0864
}
attr(convert_mumolPers_to_gPerday, "ex") <- function(){
	convert_mumolPers_to_gPerday(c(1,10))
}

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RespChamberProc documentation built on June 23, 2017, 3 p.m.