Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0822.1 |
Reduced African Easterly Wave Activity with Quadrupled CO2 in the Superparameterized CESM | |
Hannah, Walter M.; Aiyyer, Anantha | |
2017-10-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | African easterly wave (AEW) activity is examined in quadrupled CO2 experiments with the super-parameterized CESM (SP-CESM). The variance of 2-10-day filtered precipitation increases with warming over the West African monsoon region, suggesting increased AEW activity. The perturbation enstrophy budget is used to investigate the dynamic signature of AEW activity. The northern wave track becomes more active associated with enhanced baroclinicity, consistent with previous studies. The southern track exhibits a surprising reduction of wave activity associated with less frequent occurrence of weak waves and a slight increase in the occurrence of strong waves. These changes are connected to changes in the profile of vortex stretching and tilting that can be understood as interconnected consequences of increased static stability from the lapse rate response, weak temperature gradient balance, and the fixed anvil temperature hypothesis. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411438000013 |
WOS关键词 | ANVIL TEMPERATURE HYPOTHESIS ; SYNOPTIC-SCALE DISTURBANCES ; CLOUD-RESOLVING MODEL ; CLIMATE-CHANGE ; 3-DIMENSIONAL STRUCTURE ; GRADIENT APPROXIMATION ; TROPICAL PRECIPITATION ; HYDROLOGICAL CYCLE ; MONSOON SYSTEM ; CMIP5 MODELS |
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/19336 |
专题 | 气候变化 |
作者单位 | North Carolina State Univ, Raleigh, NC 27695 USA |
推荐引用方式 GB/T 7714 | Hannah, Walter M.,Aiyyer, Anantha. Reduced African Easterly Wave Activity with Quadrupled CO2 in the Superparameterized CESM[J]. JOURNAL OF CLIMATE,2017,30(20). |
APA | Hannah, Walter M.,&Aiyyer, Anantha.(2017).Reduced African Easterly Wave Activity with Quadrupled CO2 in the Superparameterized CESM.JOURNAL OF CLIMATE,30(20). |
MLA | Hannah, Walter M.,et al."Reduced African Easterly Wave Activity with Quadrupled CO2 in the Superparameterized CESM".JOURNAL OF CLIMATE 30.20(2017). |
条目包含的文件 | 条目无相关文件。 |
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