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| DOI | 10.1007/s00382-020-05282-7 |
| The global energy balance as represented in CMIP6 climate models | |
| Wild M. | |
| 发表日期 | 2020 |
| ISSN | 0930-7575 |
| 起始页码 | 553 |
| 结束页码 | 577 |
| 卷号 | 55 |
| 英文摘要 | A plausible simulation of the global energy balance is a first-order requirement for a credible climate model. Here I investigate the representation of the global energy balance in 40 state-of-the-art global climate models participating in the Coupled Model Intercomparison Project phase 6 (CMIP6). In the CMIP6 multi-model mean, the magnitudes of the energy balance components are often in better agreement with recent reference estimates compared to earlier model generations on a global mean basis. However, the inter-model spread in the representation of many of the components remains substantial, often on the order of 10–20 Wm−2 globally, except for aspects of the shortwave clear-sky budgets, which are now more consistently simulated by the CMIP6 models. The substantial inter-model spread in the simulated global mean latent heat fluxes in the CMIP6 models, exceeding 20% (18 Wm−2), further implies also large discrepancies in their representation of the global water balance. From a historic perspective of model development over the past decades, the largest adjustments in the magnitudes of the simulated present-day global mean energy balance components occurred in the shortwave atmospheric clear-sky absorption and the surface downward longwave radiation. Both components were gradually adjusted upwards over several model generations, on the order of 10 Wm−2, to reach 73 and 344 Wm−2, respectively in the CMIP6 multi-model means. Thereby, CMIP6 has become the first model generation that largely remediates long-standing model deficiencies related to an overestimation in surface downward shortwave and compensational underestimation in downward longwave radiation in its multi-model mean. © 2020, The Author(s). |
| 语种 | 英语 |
| scopus关键词 | absorption; atmospheric modeling; atmospheric wave; climate modeling; CMIP; computer simulation; energy balance; longwave radiation; water budget |
| 来源期刊 | Climate Dynamics
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/145392 |
| 作者单位 | ETH Zurich, Institute for Atmospheric and Climate Science, Zurich, 8001, Switzerland |
| 推荐引用方式 GB/T 7714 | Wild M.. The global energy balance as represented in CMIP6 climate models[J],2020,55. |
| APA | Wild M..(2020).The global energy balance as represented in CMIP6 climate models.Climate Dynamics,55. |
| MLA | Wild M.."The global energy balance as represented in CMIP6 climate models".Climate Dynamics 55(2020). |
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