Documentation and analysis of a global CO{sub 2} model developed by Peng et al. (1983)

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A global carbon model, the Peng `83 model, has been standardized according to protocols developed for an intermodel comparison. The first part of this document describes the model as they received it, and the second part describes a standardized version of the model, which has been parameterized according to the protocols described. Model performance was evaluated according to defined criteria and a sensitivity analysis of the model was conducted to identify the most important parameters. The standardized model was supplemented with a calibration routine to define reasonable combinations of initial conditions. This improved the ability of the model to hold ... continued below

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88 p.

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Jager, H.I.; Peng, T.H.; King, A.W. & Sale, M.J. July 1, 1990.

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Description

A global carbon model, the Peng `83 model, has been standardized according to protocols developed for an intermodel comparison. The first part of this document describes the model as they received it, and the second part describes a standardized version of the model, which has been parameterized according to the protocols described. Model performance was evaluated according to defined criteria and a sensitivity analysis of the model was conducted to identify the most important parameters. The standardized model was supplemented with a calibration routine to define reasonable combinations of initial conditions. This improved the ability of the model to hold an initial equilibrium state. Sensitivity analysis showed a shift in parameter importances with time. The initial conditions were of greatest importance for the length of these simulations, but declined in longer simulations. With the initial pCO{sub 2} excluded from the sensitivity analysis, ocean surface area (used to extrapolate results) was second in importance. While the CO{sub 2} exchange rate were initially most important, the model projections of atmospheric CO{sub 2} soon became more sensitive to the alkalinity of the ocean.

Physical Description

88 p.

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OSTI as DE98003670

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  • Other Information: DN: Environmental Sciences Division publication number 3523

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  • Other: DE98003670
  • Report No.: ORNL/CDIAC--38
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/661513 | External Link
  • Office of Scientific & Technical Information Report Number: 661513
  • Archival Resource Key: ark:/67531/metadc702194

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  • July 1, 1990

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  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 19, 2016, 12:52 p.m.

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Jager, H.I.; Peng, T.H.; King, A.W. & Sale, M.J. Documentation and analysis of a global CO{sub 2} model developed by Peng et al. (1983), report, July 1, 1990; Tennessee. (digital.library.unt.edu/ark:/67531/metadc702194/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.