Preprints
https://doi.org/10.5194/egusphere-2022-1508
https://doi.org/10.5194/egusphere-2022-1508
01 Mar 2023
 | 01 Mar 2023

emIAM v1.0: an emulator for Integrated Assessment Models using marginal abatement cost curves

Weiwei Xiong, Katsumasa Tanaka, Philippe Ciais, Daniel J. A. Johansson, and Mariliis Lehtveer

Abstract. We developed an emulator for Integrated Assessment Models (emIAM) based on a marginal abatement cost (MAC) curve approach. Using the output of IAMs in the ENGAGE Scenario Explorer and the GET model, we derived a large set of MAC curves: ten IAMs; global and eleven regions; three gases CO2, CH4, and N2O; eight portfolios of available mitigation technologies; and two emission sources. We tested the performance of emIAM by coupling it with a simple climate model ACC2. We found that the optimizing climate-economy model emIAM-ACC2 adequately reproduced a majority of original IAM emission outcomes under similar conditions, allowing systematic explorations of IAMs with small computational resources. emIAM can expand the capability of simple climate models as a tool to calculate cost-effective pathways linked directly to a temperature target.

Weiwei Xiong, Katsumasa Tanaka, Philippe Ciais, Daniel J. A. Johansson, and Mariliis Lehtveer

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-1508', Anonymous Referee #1, 20 Mar 2023
    • AC1: 'Comment on egusphere-2022-1508', weiwei xiong, 27 Oct 2023
  • RC2: 'Comment on egusphere-2022-1508', Yang Ou, 30 Mar 2023
    • AC1: 'Comment on egusphere-2022-1508', weiwei xiong, 27 Oct 2023
  • RC3: 'Comment on egusphere-2022-1508', Mark Dekker, 19 Apr 2023
    • AC1: 'Comment on egusphere-2022-1508', weiwei xiong, 27 Oct 2023
  • AC1: 'Comment on egusphere-2022-1508', weiwei xiong, 27 Oct 2023
Weiwei Xiong, Katsumasa Tanaka, Philippe Ciais, Daniel J. A. Johansson, and Mariliis Lehtveer

Data sets

Data for "emIAM v1.0: an emulator for Integrated Assessment Models using marginal abatement cost curves" W. Xiong, K. Tanaka, P. Ciais, D. J. A. Johansson, and M. Lehtveer https://doi.org/10.5281/zenodo.7478234

Weiwei Xiong, Katsumasa Tanaka, Philippe Ciais, Daniel J. A. Johansson, and Mariliis Lehtveer

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Latest update: 12 Apr 2024
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Short summary
The development and maintenance of Integrated Assessment Models (IAMs) requires large coordination efforts. The emulator we developed for IAMs (emIAM) can reproduce their emission outcomes well, paving a way to generate multi-IAM scenarios with small computational resources more easily. emIAM can be applied to extend the capabilities of simple climate models as a tool to calculate cost-effective pathways directly related to temperature targets.