Csat: Equilibrium Oxygen saturation concentration

In tomhull/airsea: Tools for air/sea gas exchange

Equilibrium Oxygen saturation concentration

Description

Calculates oxygen saturation concentration (C_sat) in equilibrium with the atmosphere as per Garcia & Gordon, 1992, using the Benson and Kraus data.

Usage

Csat(temp, salinity, unit = "mmolm", p_atm = 1013.25)

Arguments

temp	numeric vector of water temperature in degrees Celsius
salinity	numeric vector of salinity (PSU)
unit	"mmolm" for mmol m-3 (default), "mgl" for mg l-1 or "umolkg" for umol kg-1.
p_atm	atmospheric (air) pressure in hPa (default = 1013.25)

Details

This is also known as C* in some literature.

conversions via SCOR WG 142

check values from Garcia and Gordon 10oC 35 salinity 6.315 ml/l 274.610 umol kg-1

Value

vector of saturation concentration in mmol m-3

References

1. Bittig, H., Körtzinger, A., Johnson, K., Claustre, H., Emerson, S., Fennel, K., Garcia, H., Gilbert, D., Gruber, N., Kang, D.-J., Naqvi, W., Prakash, S., Riser, S., Thierry, V., Tilbrook, B., Uchida, H., Ulloa, O., Xing, X., 2018. SCOR WG 142: Quality Control Procedures for Oxygen and Other Biogeochemical Sensors on Floats and Gliders. Recommendations on the conversion between oxygen quantities for Bio-Argo floats and other autonomous sensor platforms. <https://doi.org/10/ggzjj3> 1. Garcia, H.E., Gordon, L.I., 1992. Oxygen solubility in seawater: Better fitting equations. Limnology and Oceanography 37, 1307–1312. <https://doi.org/10/dxf339>

Examples

Csat(10, 35)  # 282.015 mmol m-3, saturation concentration at 10 degrees and 35 salinity
Csat(10, 35, "mll")  # 6.314767 ml/l kg-1 saturation concentration at 10 degrees and 35 salinity
Csat(10, 35, "umolkg")  # 274.6095 umol kg-1 saturation concentration at 10 degrees and 35 salinity

tomhull/airsea documentation built on Oct. 26, 2023, 3:29 a.m.