Climate Change Data Portal
| DOI | 10.1007/s00382-016-3266-5 |
| The role of El Niño in the global energy redistribution: a case study in the mid-Holocene | |
| Saint-Lu M.; Braconnot P.; Leloup J.; Marti O. | |
| 发表日期 | 2019 |
| ISSN | 0930-7575 |
| 起始页码 | 7135 |
| 结束页码 | 7152 |
| 卷号 | 52期号:12 |
| 英文摘要 | It has been shown that El Niño events contribute to discharge the warm pool excess of energy out of the tropical Pacific. In a different climate, the energetic budget in the tropical Pacific is altered, which might have an effect on the El Niño amplitude and/or occurrence and thereby on the role of El Niño on energy redistribution. The mid-Holocene period (6 ka BP) offers a good example of changes in the distribution of incoming solar energy. In particular, the equator-pole gradient was weaker compared to the modern period. We analyze long stable simulations of the mid-Holocene and the pre-industrial era and discuss the mean- and El Niño-related energy transports in the two climates. We show that the role of global energy pump played by the tropical Pacific is reduced in the mid-Holocene in our simulation, both in long-term mean and during El Niño years. We demonstrate that this is not only a direct response to insolation forcing but this is further amplified by changes in internal processes. We analyze the relative role of El Niño events in the Pacific discharge in the two climates and show that it is reduced in the mid-Holocene, i.e. the fraction of the Pacific discharge that is due to El Niño is reduced. This is mainly due to reduction in the occurrence of El Niño events. This work gives a new approach to address El Niño changes, from the perspective of the role of El Niño in global energy redistribution. © 2016, Springer-Verlag Berlin Heidelberg. |
| 英文关键词 | El Niño; Energy redistribution; Fluxes; Interannual variability; Mid-Holocene; Transports |
| 语种 | 英语 |
| scopus关键词 | amplitude; annual variation; El Nino; energy budget; energy flux; Holocene; solar radiation; Pacific Ocean; Pacific Ocean (Tropical) |
| 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/146295 |
| 作者单位 | Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL,CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, 91191, France; UPMC Univ. Paris 06, Laboratoire d’Océanographie et Climatologie, LOCEAN/IPSL, CNRS-IRD-MNHN, Sorbonne Universités, 4, place Jussieu, Paris, 75005, France |
| 推荐引用方式 GB/T 7714 | Saint-Lu M.,Braconnot P.,Leloup J.,et al. The role of El Niño in the global energy redistribution: a case study in the mid-Holocene[J],2019,52(12). |
| APA | Saint-Lu M.,Braconnot P.,Leloup J.,&Marti O..(2019).The role of El Niño in the global energy redistribution: a case study in the mid-Holocene.Climate Dynamics,52(12). |
| MLA | Saint-Lu M.,et al."The role of El Niño in the global energy redistribution: a case study in the mid-Holocene".Climate Dynamics 52.12(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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