Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-17-0139.1 |
Eddy Sensitivity to Jet Characteristics | |
Yuval, Janni; Kaspi, Yohai | |
2018-05-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:5页码:1371-1383 |
文章类型 | Article |
语种 | 英语 |
国家 | Israel |
英文摘要 | The atmosphere exhibits two distinct types of jets: the thermally driven subtropical jet and the more poleward eddy-driven jet. Depending on location and season, these jets are often merged or separated, and their position, structure, and intensity strongly influence the eddy fields. Here, the authors study the sensitivity of eddies to changes in the jets' amplitudes and positions in an idealized general circulation model. A modified Newtonian relaxation scheme that has a very short relaxation time for the mean state and a long relaxation time for eddies is used. This scheme makes it possible to obtain any zonally symmetric temperature distribution and is used to systematically modify the jets' amplitudes and locations. It is found that eddies are more sensitive to changes in the amplitude of the eddy-driven jet than to changes in the amplitude of the subtropical jet. Furthermore, when the eddy-driven jet is shifted poleward, eddies tend to intensify. These results are tested for robustness in two different reference simulations: one resembling a situation where the subtropical and eddy-driven jets are nearly merged and one when they are separated. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434270600002 |
WOS关键词 | STORM-TRACKS ; CIRCULATION MODEL ; ATMOSPHERE ; SUPPRESSION ; MIDWINTER ; PACIFIC ; GCM |
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/29307 |
专题 | 地球科学 |
作者单位 | Weizmann Inst Sci, Dept Earth & Planetary Sci, Rehovot, Israel |
推荐引用方式 GB/T 7714 | Yuval, Janni,Kaspi, Yohai. Eddy Sensitivity to Jet Characteristics[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(5):1371-1383. |
APA | Yuval, Janni,&Kaspi, Yohai.(2018).Eddy Sensitivity to Jet Characteristics.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(5),1371-1383. |
MLA | Yuval, Janni,et al."Eddy Sensitivity to Jet Characteristics".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.5(2018):1371-1383. |
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