Biogeosciences
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Articles | Volume 12, issue 1
Articles | Volume 12, issue 1
https://doi.org/10.5194/bg-12-209-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-12-209-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 12, issue 1
Research article
 | 
12 Jan 2015
Research article |  | 12 Jan 2015

Variable C : N : P stoichiometry of dissolved organic matter cycling in the Community Earth System Model

R. T. Letscher, J. K. Moore, Y.-C. Teng, and F. Primeau

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Short summary
Marine DOM is known to exhibit stoichiometry depleted in N and P compared with POM, suggesting variable production and remineralization stoichiometry for C, N, and P within marine DOM cycling. We utilize marine DOM observations and an inverse tracer modeling framework to optimize DOM cycling parameters for the BEC biogeochemistry ocean model of the CESM, finding a variable stoichiometry with faster turnover of P > N > C superior to the commonly assumed Redfield stoichiometry for marine DOM.
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