pH_nbs2total: Function pH_nbs2total

In SCCWRP/phcorrection:

Function pH_nbs2total

Description

CONVERT pH (ON NBS SCALE) TO pH on TOTAL SCALE source: https://www.mbari.org/products/research-software/visual-basic-for-excel-oceanographic-calculations/ link: https://www.mbari.org/wp-content/uploads/2016/03/pH_nbs2total.txt

This code was adapted from the work of others: CO2SYS.exe was originally written by Ernie Lewis and Doug Wallace. It was converted to Matlab by Richard E. Zeebe & Dieter A. Wolf-Gladrow. Parts were extracted and modified by Rachel M. Dunk.

I am indebted to all of them for their initial development of this code.

FIRST: convert pH_NBS to pH_SWS aH = 10^(-pH_NBS) = fH*H_SWS fH = activity coefficient of H+ ion & includes liquid junction effects The fit used in CO2SYS is valid for salinity 20-40 (from Takahashi et al, Chapter 3 in GEOSECS Pacific Expedition,v.3, 1982, p. 80). For future ref, CO2SYS assumes fH is independent of P

Usage

pH_nbs2total(S, T_C, pH_NBS, rho_SW)

Arguments

S	Salinity in g/kg or pss (numeric)
T_C	Temperature in degrees C (numeric)
pH_NBS	pH measured on NBS scale
rho_SW	density of SW at S, T_C in g/cc

Value

pH on Total Scale

SCCWRP/phcorrection documentation built on Jan. 4, 2023, 9:14 p.m.