New Earth system model shows warming patterns consistent with global climate averages
In short: Researchers who developed the CMCC-ESM2 Earth system model found that its climate projections align closely with existing global averages. By expanding how the model handles nitrogen cycles and marine ecosystems, the team produced simulations that show significant warming in the northern hemisphere and increased precipitation at high latitudes, while maintaining a consistent representation of historical physical and biogeochemical data.
The study introduces the CMCC-ESM2 model, which improves upon previous versions by adding complex terrestrial carbon pools and more detailed marine trophic interactions. This allows for a more nuanced look at how biological processes influence the climate.
The researchers evaluated the model by comparing its historical performance against observational datasets. While the model's climate sensitivity aligns with global trends, they noted that its simulated land carbon sink is weaker than current global estimates and marine primary production is slightly lower than satellite observations.
Why it matters: Advanced Earth system models help refine our understanding of how biological cycles and climate sensitivity interact.
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Sources
- Source: Research: Lovato et al. (2022). CMIP6 Simulations With the CMCC Earth System Model (CMCC‐ESM2). Journal of Advances in Modeling Earth Systems. · cc-by
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