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Dachs et al. 2005
Dachs, J., Calleja, M.L., Duarte, C.M., del Vento, S., Turpin, B., Polidori, A., Herndl, G.J. and Agustí, S. (2005). High atmosphere-ocean exchange of organic carbon in the NE subtropical Atlantic. Geophysical Research Letters 32: doi: 10.1029/2005GL023799. issn: 0094-8276.

The air-sea exchange of organic carbon (OC) remains largely unexplored, except for few organic compounds comprising a small fraction of the total aerosol and gaseous OC in the atmosphere. Observations of high atmospheric concentrations and diffusive air-sea exchanges for such individual organic compounds, suggest that air-sea exchange of total OC may contribute significantly to the oceanic carbon budget. Here we quantify the atmosphere-ocean exchanges of total OC in the NE Subtropical Atlantic. Average net gaseous diffusive air-water fluxes averaged --31 and --25 mmol C m-2 d-1 for the spring and fall, respectively, exceeding measured OC inputs by dry aerosol deposition (FDDOC, -0.98 mmol C m-2 d-1) and net CO2 exchange (FCO2, -6.3 mmol C m-2 d-1). These fluxes are important to understand the regional carbon budget of the NE Subtropical Atlantic, and depict the atmosphere as a major dynamic vector for OC exchange with the ocean.

BACKGROUND DATA FILES

Abstract

Keywords
Atmospheric Composition and Structure, Air/sea constituent fluxes (3339, 4504), Atmospheric Composition and Structure, Biosphere/atmosphere interactions (0426, 1610), Biogeosciences, Biogeochemical cycles, processes, and modeling (0412, 0793, 1615, 4805, 4912), Biogeosciences, Carbon cycling, Biogeosciences, Marine systems
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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