nerc.ac.uk

A factorial analysis of the marine carbon cycle controls on atmospheric CO2

Cameron, D.R.; Lenton, T.M.; Ridgwell, A.J.; Shepherd, J.G.; Marsh, R.; Yool, A. ORCID: https://orcid.org/0000-0002-9879-2776. 2005 A factorial analysis of the marine carbon cycle controls on atmospheric CO2. Global Biogeochemical Cycles, 19 (4). 1-12. https://doi.org/10.1029/2005GB002489

Full text not available from this repository.

Abstract/Summary

A factorial experiment with a new Earth system model of intermediate complexity is used to assess the sensitivity of atmospheric CO2 to organic, carbonate and solubility pumps, ocean circulation state, and climate feedback. An analysis of variance of the results reveals that the organic, carbonate, and solubility pumps act multiplicatively and account for 94% of the variance of atmospheric CO2. The organic pump explains 63% (89 ppm), the solubility pump 24% (55 ppm), the carbonate pump 6% (28 ppm), and ocean circulation 0.3% (12 ppm) of the variance. Removing all pumps increases atmospheric CO2 from 278 to 525 ppm. Including interactions with all the pumps increases the effects of ocean circulation from 12 to 56 ppm. However, the ocean circulation states used are unlikely to span the full range of possible states. Changes in Pacific circulation have more effect on atmospheric CO2 than Atlantic circulation.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1029/2005GB002489
ISSN: 0886-6236
Additional Keywords: atmospheric CO2, factorial, oceanic carbon pumps
Date made live: 22 Mar 2006 +0 (UTC)
URI: https://nora.nerc.ac.uk/id/eprint/124129

Actions (login required)

View Item View Item

Document Downloads

Downloads for past 30 days

Downloads per month over past year

More statistics for this item...