Articles | Volume 13, issue 18
Biogeosciences, 13, 5297–5314, 2016
Biogeosciences, 13, 5297–5314, 2016
Research article
22 Sep 2016
Research article | 22 Sep 2016

Clumped isotopes in near-surface atmospheric CO2 over land, coast and ocean in Taiwan and its vicinity

Amzad Hussain Laskar and Mao-Chang Liang

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Cited articles

Affek, H. P.: Clumped isotopic equilibrium and the rate of isotope exchange between CO2 and water, Am. J. Sci., 313, 309–325, 2013.
Affek, H. P. and Eiler, J. M.: Abundance of mass 47 CO2 in urban air, car exhaust, and human breath, Geochim. Cosmochim. Acta, 70, 1–12, 2006.
Affek, H. P. and Yakir, D.: The stable isotopic composition of atmospheric CO2, Treaties of Geochemistry, 5, 179–212, 2014.
Affek, H. P., Xu, X., and Eiler, J. M.: Seasonal and diurnal variations of 13C18O16O in air: Initial observations from Pasadena CA, Geochim. Cosmochim. Acta, 71, 5033–5043, 2007.
Barkan, E. and Luz, B.: High precision measurements of 17O ∕16O and 18O ∕16O ratios in H2O, Rapid Commun. Mass Spectrom., 19, 3737–3742, 2005.
Short summary
We present clumped isotope data in air CO2 over land and ocean in Taiwan and its vicinity. CO2 over ocean is in thermodynamic equilibrium with the surface sea water and deviated significantly in urban and suburban areas due contribution from combustion emission. Photosynthetic activity deviates residual CO2 from thermodynamic equilibrium but respiration does not. Deviations from thermodynamic equilibrium by various interactions in different environments are presented.
Final-revised paper