| DOI: | 10.1175/JCLI-D-15-0401.1
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| Scopus记录号: | 2-s2.0-84947568067
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| 论文题名: | Effect of upper-ocean evolution on projected trends in tropical cyclone activity |
| 作者: | Emanuel K.
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| 刊名: | Journal of Climate
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| ISSN: | 8948755
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| 出版年: | 2015
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| 卷: | 28, 期:20 | | 起始页码: | 8165
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| 结束页码: | 8170
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| 语种: | 英语
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| 英文摘要: | Recent work has highlighted the possible importance of changing upper-ocean thermal and density stratification on observed and projected changes in tropical cyclone activity. Here seven CMIP phase 5 (CMIP5)-generation climate model simulations are downscaled under IPCC representative concentration pathway 8.5 using a coupled atmosphere-ocean tropical cyclone model, generating 100 events per year in the western North Pacific from 2006 to 2100. A control downscaling in which the upper-ocean thermal structure is fixed at its monthly values in the year 2006 is compared to one in which the upper ocean is allowed to evolve, as derived from the CMIP5 models. As found in earlier work, the thermal stratification generally increases as the climate warms, leading to increased ocean mixing-induced negative feedback on tropical cyclone intensity. While trends in the frequency of storms are unaffected, the increasing stratification of the upper ocean leads to a 13% reduction in the increase of tropical cyclone power dissipation over the twenty-first century, averaged across the seven climate models. Much of this reduction is associated with a moderation of the increase in the frequency of category-5 storms. © 2015 American Meteorological Society. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/50564
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Lorenz Center, Massachusetts Institute of Technology, Cambridge, MA, United States
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| Recommended Citation: | |
Emanuel K.. Effect of upper-ocean evolution on projected trends in tropical cyclone activity[J]. Journal of Climate,2015-01-01,28(20)
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