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- Title
CAS-ESM2.0 Dataset for the Carbon Dioxide Removal Model Intercomparison Project (CDRMIP).
- Authors
Jin, Jiangbo; Ji, Duoying; Dong, Xiao; Fei, Kece; Guo, Run; He, Juanxiong; Yu, Yi; Chai, Zhaoyang; Zhang, He; Zhang, Dongling; Chen, Kangjun; Zeng, Qingcun
- Abstract
Understanding the response of the Earth system to varying concentrations of carbon dioxide (CO2) is critical for projecting possible future climate change and for providing insight into mitigation and adaptation strategies in the near future. In this study, we generate a dataset by conducting an experiment involving carbon dioxide removal (CDR)—a potential way to suppress global warming—using the Chinese Academy of Sciences Earth System Model version 2.0 (CAS-ESM2.0). A preliminary evaluation is provided. The model is integrated from 200–340 years as a 1% yr−1 CO2 concentration increase experiment, and then to ~478 years as a carbon dioxide removal experiment until CO2 returns to its original value. Finally, another 80 years is integrated in which CO2 is kept constant. Changes in the 2-m temperature, precipitation, sea surface temperature, ocean temperature, Atlantic meridional overturning circulation (AMOC), and sea surface height are all analyzed. In the ramp-up period, the global mean 2-m temperature and precipitation both increase while the AMOC weakens. Values of all the above variables change in the opposite direction in the ramp-down period, with a delayed peak relative to the CO2 peak. After CO2 returns to its original value, the global mean 2-m temperature is still ~1 K higher than in the original state, and precipitation is ~0.07 mm d−1 higher. At the end of the simulation, there is a ~0.5°C increase in ocean temperature and a 1 Sv weakening of the AMOC. Our model simulation produces similar results to those of comparable experiments previously reported in the literature.
- Subjects
CHINESE Academy of Sciences (Beijing, China); ATLANTIC meridional overturning circulation; CARBON dioxide; OCEAN temperature; EARTH system science
- Publication
Advances in Atmospheric Sciences, 2024, Vol 41, Issue 5, p989
- ISSN
0256-1530
- Publication type
Article
- DOI
10.1007/s00376-023-3089-3