R/pCa.R

# Copyright (C) 2008 Jean-Pierre Gattuso
#
# This file is part of seacarb.
#
# Seacarb is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version.
#
# Seacarb is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with seacarb; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
"pCa" <- function(flag,  var1,  var2, Ca, S=35, T=20, P=0, Pt=0, Sit=0, k1k2='l', kf='pf', pHscale="T"){
	ci <- carb(flag, var1= var1, var2= var2, S=S ,T=T, P=P, Pt=Pt, Sit=Sit, k1k2=k1k2, kf=kf, pHscale=pHscale) # initial carbonate chemistry
	#0.01028*(S/35) # calcium concentration (Dickson et al., 2007)
	#co <- ci
	#if (length(Ca) > 1) {for(i in 1:(length(Ca)-1)) {co <- rbind(co,c)}}
	Oa <- Ca * ci$CO3 / Kspa(S=S, T=T, P=P)
	Oc <- Ca * ci$CO3 / Kspc(S=S, T=T, P=P)
	cf <- ci
	if (length(Ca) > 1) {for(i in 1:(length(Ca)-1)) {cf <- rbind(cf,ci)}}
	co <- as.data.frame(c("pCa-initial", rep("pCa-final", nrow(cf))))
	cf$OmegaAragonite <- Oa
	cf$OmegaCalcite <- Oc
	out <- rbind(ci, cf)
	out <- cbind(co, out)
	names(out)[1] <- "comment"
	return(out[,1:15])
}

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seacarb documentation built on May 2, 2019, 5:34 p.m.