Development of a new climate module for the RICE/DICE model
(1999)
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- Authors
van Ypersele de Strihou, Jean-Pascal 
- Abstract
- The rational determination of an optimal greenhouse-gas emission strategy requires the construction of an integrated economic-climate model describing the interactions between the climate and the socio-economic system. However, realistic climate models based on coupled ocean-atmosphere general circulation models and three-dimensional ocean-atmosphere carbon cycle models require too much computing time to be used in studies involving iterative optimization computations. Simpler climate modules need therefore to be developed. To achieve this goal, a simple climate module is presented here. The module consists of two parts: a carbon cycle component, and a climate component. The pulse response carbon cycle model used represents a linearized approximation of the response computed with a realistic, fully nonlinear carbon cycle model. It captures the principal features of the response of the complex model to anthropogenic CO 2 emissions, but is valid only for relatively small perturbations of the carbon cycle system (the non-linearity of the carbonate chemistry in the ocean limits the accuracy of this procedure for concentrations less than twice the preindustrial value of CO 2 partial pressure - 280 ppmv -, equivalent to a preindustrial atmospheric carbon load of 594 GtC). The time-dependent geographical distribution of climate change has been constructed by using a method that combines the geographical distributions of equilibrium climate change simulated by an atmosphere general circulation/mixed-layer ocean model, each normalized by its individual annual global mean surface-air temperature change, with the time-dependent change in annual global mean surface air temperature simulated by highly simplified equations relating anthropogenic forcing to transient temperature chang...
- Affiliations
Citations
Bertrand, C., & van Ypersele de Strihou, J.-P. (1999). Development of a new climate module for the RICE/DICE model. https://hdl.handle.net/2078.5/59774