www.sciencemag.org/cgi/content/full/335/6072/1058/DC1 Supporting Online Material for The Geological Record of Ocean Acidification

• Main Authors: Bärbel Hönisch, Andy Ridgwell, Daniela N. Schmidt, Ellen Thomas, Samantha J. Gibbs, Richard Zeebe, Lee Kump, Rowan C. Martindale, Sarah E. Greene, Wolfgang Kiessling, Justin Ries, James C. Zachos, Dana L. Royer, Stephen Barker, Thomas M. Marchitto, Ryan Moyer, Carles Pelejero, Patrizia Ziveri, Gavin L. Foster, Branwen Williams
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 1058
• Subjects: Ocean acidification; Sea ice
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.5579; http://instaar.colorado.edu/~marchitt//reprints/hoenischscience12som.pdf

Other Supporting Online Material for this manuscript includes the following: (available at www.sciencemag.org/cgi/content/full/335/6072/1058/DC1) Tables S1 to S3 as an Excel file 2 Summary of model description (supporting Figure 3) To illustrate how the different properties of ocean carbonate chemistry vary as the time-scale of atmospheric CO2 perturbation changes, we use the GENIE Earth system model. GENIE is based on the fast climate model of Edwards and Marsh (79), which features a reduced physics (frictional geostrophic) 3-D ocean circulation model, coupled to a 2-D energy-moisture balance model of the atmosphere and a dynamic-thermodynamic sea-ice model. The ocean model includes a representation of marine carbon cycling, based on a phosphate control of biological productivity, which has been calibrated against observational datasets of ocean geochemistry (80). Of particular relevance to this study is the inclusion of a model of the preservation and burial of biogenic carbonates in deep-sea sediments (81), also calibrated against observations of modern surface sediment