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DOI | 10.1029/2020GL090861 |
Non‐monotonic Response of the Climate System to Abrupt CO2 Forcing | |
Ivan Mitevski; Clara Orbe; Rei Chemke; Larissa Nazarenko; Lorenzo M. Polvani | |
2021-03-10 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | We explore the climate system response to abrupt CO2 forcing, spanning the range 1× to 8×CO2, with two state‐of‐the‐art coupled atmosphere‐ocean‐sea‐ice‐land models: the NASA Goddard Institute for Space Studies Model E2.1‐G (GISS‐E2.1‐G) and the Community Earth System Model (CESM‐LE). We find that the effective climate sensitivity is a non‐monotonic function of CO2 in both models, reaching a minimum at 3 ×CO2 for GISS‐E2.1‐G, and 4 ×CO2 for CESM‐LE. A similar non‐monotonic response is found in Northern Hemisphere surface temperature, sea‐ice, precipitation, the latitude of zero precipitation‐minus‐evaporation, and the strength of the Hadley cell. Interestingly, the Atlantic meridional overturning circulation collapses when non‐monotonicity appears and does not recover for larger CO2 forcings. Analyzing the climate response over the same CO2 range with slab‐ocean versions of the same models, we demonstrate that the climate system's non‐monotonic response is linked to ocean dynamics. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/318571 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Ivan Mitevski,Clara Orbe,Rei Chemke,等. Non‐monotonic Response of the Climate System to Abrupt CO2 Forcing[J]. Geophysical Research Letters,2021. |
APA | Ivan Mitevski,Clara Orbe,Rei Chemke,Larissa Nazarenko,&Lorenzo M. Polvani.(2021).Non‐monotonic Response of the Climate System to Abrupt CO2 Forcing.Geophysical Research Letters. |
MLA | Ivan Mitevski,et al."Non‐monotonic Response of the Climate System to Abrupt CO2 Forcing".Geophysical Research Letters (2021). |
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