Contents
USAGE:
N2sol = gsw_N2sol(SA,CT,p,long,lat)
DESCRIPTION:
Calculates the nitrogen, N2, concentration expected at equilibrium with
air at an Absolute Pressure of 101325 Pa (sea pressure of 0 dbar)
including saturated water vapor. This function uses the solubility
coefficients as listed in Hamme and Emerson (2004).
INPUT:
SA = Absolute Salinity [ g/kg ]
CT = Conservative Temperature [ deg C ]
p = sea pressure [ dbar ]
(i.e. absolute pressure - 10.1325 dbar)
long = longitude in decimal degrees [ 0 ... +360 ]
or [ -180 ... +180 ]
lat = latitude in decimal degrees north [ -90 ... +90 ]
SA & CT need to have the same dimensions. p, lat and long may have
dimensions 1x1 or Mx1 or 1xN or MxN, where SA and CT are MxN.
OUTPUT:
N2sol = solubility of nitrogen [ umol/kg ]
EXAMPLE:
SA = [34.7118; 34.8915; 35.0256; 34.8472; 34.7366; 34.7324;]
CT = [28.8099; 28.4392; 22.7862; 10.2262; 6.8272; 4.3236;]
p = [ 10; 50; 125; 250; 600; 1000;]
lat = [ 4; 4; 4; 4; 4; 4;]
long = [ 188; 188; 188; 188; 188; 188;]
N2sol = gsw_N2sol(SA,CT,p,long,lat)
N2sol =
1.0e+002 *
3.696522201339501
3.710603852813035
4.023117671494784
4.998507669357042
5.357184866209647
5.652386114469981
AUTHOR:
Roberta Hamme, Paul Barker and Trevor McDougall [ help@teos-10.org ]
VERSION NUMBER:
3.04 (6th December, 2013)
REFERENCES:
IOC, SCOR and IAPSO, 2010: The international thermodynamic equation of
seawater - 2010: Calculation and use of thermodynamic properties.
Intergovernmental Oceanographic Commission, Manuals and Guides No. 56,
UNESCO (English), 196 pp. Available from the TEOS-10 web site.
Hamme, R., and S. Emerson, 2004: The solubility of neon, nitrogen and
argon in distilled water and seawater. Deep-Sea Research, 51, 1517-1528.
The software is available from http://www.TEOS-10.org