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Ocean-Atmosphere Interactions of Gases and Particles, p. 113-169

DOI: 10.1007/978-3-642-25643-1_3

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Air-Sea Interactions of Natural Long-Lived Greenhouse Gases (CO2, N2O, CH4) in a Changing Climate

Journal article published in 2013 by S. Wajih A. Naqvi, Dorothee C. E. Bakker, Hermann W. Bange, Nicolas Gruber, Truls Johannessen, Rob C. Upstill-Goddard, Alberto V. Borges, Bruno Delille ORCID, Carolin R. Loscher ORCID, Peter S. Liss, S. Wajih A. Naqvi, Abdirahman M. Omar, Martin T. Johnson, J. Magdalena Santana-Casiano ORCID, J. Magdalena Santana Casiano
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Understanding and quantifying ocean–atmosphere exchanges of the long-lived greenhouse gases carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4) are important for understanding the global biogeochemical cycles of carbon and nitrogen in the context of ongoing global climate change. In this chapter we summarise our current state of knowledge regarding the oceanic distributions, formation and consumption pathways, and oceanic uptake and emissions of CO2, N2O and CH4, with a particular emphasis on the upper ocean. We specifically consider the role of the ocean in regulating the tropospheric content of these important radiative gases in a world in which their tropospheric content is rapidly increasing and estimate the impact of global change on their present and future oceanic uptake and/or emission. Finally, we evaluate the various uncertainties associated with the most commonly used methods for estimating uptake and emission and identify future research needs.