Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0360.1 |
A Strong Role for the AMOC in Partitioning Global Energy Transport and Shifting ITCZ Position in Response to Latitudinally Discrete Solar Forcing in CESM1.2 | |
Yu, Sungduk1,2; Pritchard, Michael S.1 | |
2019-04-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:8页码:2207-2226 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Ocean circulation responses to interhemispheric radiative imbalance can damp north-south migrations of the intertropical convergence zone (ITCZ) by reducing the burden on atmospheric energy transport. The role of the Atlantic meridional overturning circulation (AMOC) in such dynamics has not received much attention. Here, we present coupled climate modeling results that suggest AMOC responses are of first-order importance to muting ITCZ shift magnitudes as a pair of hemispherically asymmetric solar forcing bands is moved from equatorial to polar latitudes. The cross-equatorial energy transport response to the same amount of interhemispheric forcing becomes systematically more ocean-centric when higher latitudes are perturbed in association with strengthening AMOC responses. In contrast, the responses of the Pacific subtropical cell are not monotonic and cannot predict this variance in the ITCZ's equilibrium position. Overall, these results highlight the importance of the meridional distribution of interhemispheric radiative imbalance and the rich buffering of internal feedbacks that occurs in dynamic versus thermodynamic (slab) ocean modeling experiments. Mostly, the results imply that the problem of developing a theory of ITCZ migration is entangled with that of understanding the AMOC's response to hemispherically asymmetric radiative forcinga difficult topic deserving of focused analysis across more climate models. |
英文关键词 | Atmosphere-ocean interaction Energy transport Meridional overturning circulation Energy budget balance Climate models Coupled models |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465350600003 |
WOS关键词 | MERIDIONAL OVERTURNING CIRCULATION ; SEA-SURFACE TEMPERATURE ; HEAT-TRANSPORT ; TROPICAL PRECIPITATION ; OCEAN CIRCULATION ; CLIMATE RESPONSE ; SEASONAL CYCLE ; CONVERGENCE ; VARIABILITY ; ATMOSPHERE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/182140 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA; 2.Yale Univ, Dept Geol & Geophys, New Haven, CT 06520 USA |
推荐引用方式 GB/T 7714 | Yu, Sungduk,Pritchard, Michael S.. A Strong Role for the AMOC in Partitioning Global Energy Transport and Shifting ITCZ Position in Response to Latitudinally Discrete Solar Forcing in CESM1.2[J]. JOURNAL OF CLIMATE,2019,32(8):2207-2226. |
APA | Yu, Sungduk,&Pritchard, Michael S..(2019).A Strong Role for the AMOC in Partitioning Global Energy Transport and Shifting ITCZ Position in Response to Latitudinally Discrete Solar Forcing in CESM1.2.JOURNAL OF CLIMATE,32(8),2207-2226. |
MLA | Yu, Sungduk,et al."A Strong Role for the AMOC in Partitioning Global Energy Transport and Shifting ITCZ Position in Response to Latitudinally Discrete Solar Forcing in CESM1.2".JOURNAL OF CLIMATE 32.8(2019):2207-2226. |
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