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Thermal and Haline Effects on the Calculation of Air-sea Co2 Fluxes Revisited : Volume 9, Issue 11 (16/11/2012)

By Woolf, D. K.

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Book Id: WPLBN0003980928
Format Type: PDF Article :
File Size: Pages 37
Reproduction Date: 2015

Title: Thermal and Haline Effects on the Calculation of Air-sea Co2 Fluxes Revisited : Volume 9, Issue 11 (16/11/2012)  
Author: Woolf, D. K.
Volume: Vol. 9, Issue 11
Language: English
Subject: Science, Biogeosciences, Discussions
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Shutler, J. D., Land, P. E., Goddijn-Murphy, L. M., & Woolf, D. K. (2012). Thermal and Haline Effects on the Calculation of Air-sea Co2 Fluxes Revisited : Volume 9, Issue 11 (16/11/2012). Retrieved from

Description: International Centre for Island Technology, Heriot Watt University, Stromness, Orkney KW16 3AW, UK. The presence of vertical temperature and salinity gradients in the upper ocean and the occurrence of variations in temperature and salinity on time scales from hours to many years complicate the calculation of the flux of carbon dioxide (CO2) across the sea surface. Temperature and salinity affect the interfacial concentration of aqueous CO2 primarily through their effect on solubility with lesser effects related to saturated vapour pressure and the relationship between fugacity and partial pressure. The effects of temperature and salinity profiles and changes in the aqueous concentration act primarily through the partitioning of the carbonate system. Contrary to some recent analysis, it is shown that the effect on CO2 fluxes of a cool skin on the sea surface is large and ubiquitous. An opposing effect on calculated fluxes is related to the occurrence of warm layers near the surface; this effect can be locally large but will usually coincide with periods of low exchange. A salty skin and salinity anomalies in the upper ocean also affect CO2 flux calculations, though the haline effects are generally weaker than the thermal effects.

Thermal and haline effects on the calculation of air-sea CO2 fluxes revisited

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