Carbon–Concentration and Carbon–Climate Feedbacks in CMIP5 Earth System Models

Abstract The magnitude and evolution of parameters that characterize feedbacks in the coupled carbon–climate system are compared across nine Earth system models (ESMs). The analysis is based on results from biogeochemically, radiatively, and fully coupled simulations in which CO2 increases at a rate of 1% yr−1. These simulations are part of phase 5 of the Coupled Model Intercomparison Project (CMIP5). The CO2 fluxes between the atmosphere and underlying land and ocean respond to changes in atmospheric CO2 concentration and to changes in temperature and other climate variables. The carbon–concentration and carbon–climate feedback parameters characterize the response of the CO2 flux between the atmosphere and…

• UD
  U.S. Department of Energy
• DF
  Department for Environment, Food and Rural Affairs, UK Government

  Award: GA01101
• MO
  Met Office

  Award: GA01101
• NF
  Norges Forskningsråd

  Award: 207711/E10