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DOI | 10.1029/2019GL082865 |
Understand the Direct Effect of CO2 Increase on Tropical Circulation and TC Activity: Land Surface Warming Versus Direct Radiative Forcing | |
Zhou, Wenyu1; Zhao, Ming2; Yang, Da1,3 | |
2019-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:12页码:6859-6867 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The direct effect of increased CO2 involves contributions from both land warming and direct radiative forcing. Here, their relative impacts on tropical circulation and tropical cyclones (TCs) are quantified by increasing CO2 over land and ocean separately in a high-resolution atmosphere-only model. It is found that land warming induces substantial vertical velocity changes over nearby oceans and such local changes are compensated by opposite motions within tropical ascending regions. The cloud mask effect leads to smaller CO2-induced radiative heating over ascending regions. Such inhomogeneity in radiative forcing dominates compensated changes in surface fluxes and gross moist stability, leading to the slowdown of the tropical overturning circulation. TC activity is tightly linked with the large-scale ascent because of the influence on the atmospheric humidity. Regional circulation changes caused by land warming strongly suppresses TC activity over the northwest Pacific, while weakened ascent from direct radiative forcing causes an overall TC reduction. |
英文关键词 | direct effect of CO2 increase tropical circulation weakening tropical cyclone land warming cloud mask effect cloud radiative forcing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616300077 |
WOS关键词 | CONVECTIVE EQUILIBRIUM ; SIMULATIONS ; RESOLUTION ; CLIMATE ; MODEL ; SENSITIVITY ; DEPENDENCE ; CYCLONES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/184276 |
专题 | 气候变化 |
作者单位 | 1.Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA; 2.NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA; 3.Univ Calif Davis, Coll Agr & Environm Sci, Davis, CA 95616 USA |
推荐引用方式 GB/T 7714 | Zhou, Wenyu,Zhao, Ming,Yang, Da. Understand the Direct Effect of CO2 Increase on Tropical Circulation and TC Activity: Land Surface Warming Versus Direct Radiative Forcing[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(12):6859-6867. |
APA | Zhou, Wenyu,Zhao, Ming,&Yang, Da.(2019).Understand the Direct Effect of CO2 Increase on Tropical Circulation and TC Activity: Land Surface Warming Versus Direct Radiative Forcing.GEOPHYSICAL RESEARCH LETTERS,46(12),6859-6867. |
MLA | Zhou, Wenyu,et al."Understand the Direct Effect of CO2 Increase on Tropical Circulation and TC Activity: Land Surface Warming Versus Direct Radiative Forcing".GEOPHYSICAL RESEARCH LETTERS 46.12(2019):6859-6867. |
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