Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/72799
Title: pH Decrease and Effects on the Chemistry of Seawater
Authors: Magdalena Santana-Casiano, Juana 
Gonzalez-Davila, Melchor 
UNESCO Clasification: 251002 Oceanografía química
Keywords: Carbon-Dioxide
Interannual Variability
Ocean
Co2
Dissociation
Acid
Calcification
Constants
Cycle
Carbon Dioxide
Ph
Alkalinity
Total Inorganic Carbon
Carbonate
Seawater
Atmosphere
Borate
Saturation State
Calcite
Aragonite
Estoc
Time Series Station
Buffer Capacity
Revelle Factor
Issue Date: 2011
Publisher: Springer
Conference: Seasink International Conference on Oceans and the Atmospheric Carbon Content 
Abstract: Variation in seawater pH is just one response to the increased CO2 concentration in the atmosphere due to anthropogenic activities. The decrease in pH has a significant effect on the carbonate chemistry of the ocean and causes a decrease in the calcium carbonate saturation state (Omega). Ten years of experimental pH measurements at the ESTOC station show a progressive reduction on pH in the ocean (-0.0017 +/- 0.0002 year(-1)) and its effects on its carbonate chemistry. The calcium carbonate saturation state decreases by 0.018 +/- 0.006 unit year(-1) for calcite and 0.012 +/- 0.004 unit year(-1) for aragonite. The direct consequences of the pH decrease are a decrease in the buffer capacity (-1.99 +/- 0.25 mu mol kg(-1) year(-1)) and an increase in the Revel le factor (0.02 +/- 0.002 year(-1)) of the surface seawater.
URI: http://hdl.handle.net/10553/72799
ISBN: 978-90-481-9820-7
DOI: 10.1007/978-90-481-9821-4_5
Source: Oceans And The Atmospheric Carbon Content [ISBN 978-90-481-9820-7], p. 95-114, (2011)
Appears in Collections:Actas de congresos
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