Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-18-0232.1 |
Parameter Sweep Experiments on a Spectrum of Cyclones with Diabatic and Baroclinic Processes | |
Yanase, Wataru1; Niino, Hiroshi2 | |
2019-07-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2019 |
卷号 | 76期号:7页码:1917-1935 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | A wide range of environments that prevail over the globe generate various types of cyclones such as tropical, extratropical, and hybrid cyclones. In this paper, idealized numerical experiments are used to explore a spectrum of cyclones ranging from the diabatic type to the baroclinic type in a parameter space consisting of three environmental factors: temperature, vertical shear, and planetary vorticity. The experiments reproduce not only typical dynamics of tropical and extratropical cyclones but also their modified dynamics, which are consistent with theoretical studies; tropical cyclones are suppressed by vertical shear, while extratropical cyclones are intensified by condensational heating. The experiments also reproduce hybrid cyclones in environments with high temperature and large baroclinicity. The hybrid cyclones show multiscale dynamics in which synoptic-scale baroclinic systems spawn smaller-scale tropical cyclone-like convective cores. The spectrum of cyclones is found to be nonmonotonic in the parameter space because of a two-sided effect of the vertical shear: moderate shear weakens a tropical cyclone by tilting the small-scale vortex to the downshear, while strong shear develops a large-scale vortex of an extratropical cyclone or a hybrid cyclone through warm-air advection from the south. The indices based on the energetics and the symmetric and asymmetric structures overview the different types of cyclones in the parameter space. These parameter sweep experiments provide useful information on what environment is favorable for cyclones, particularly for intermediate environments where cyclone mechanisms are yet to be fully defined. |
英文关键词 | Extratropical cyclones Storm environments Subtropical cyclones Tropical cyclones Nonhydrostatic models |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471868900001 |
WOS关键词 | VERTICAL WIND SHEAR ; TROPICAL TRANSITION EVENTS ; FRONTAL-SCALE INFLUENCES ; EXTRATROPICAL TRANSITION ; PART I ; SUBTROPICAL CYCLONES ; LIFE-CYCLE ; MOIST ; MODEL ; CLIMATOLOGY |
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/184736 |
专题 | 地球科学 |
作者单位 | 1.Japan Meteorol Agcy, Meteorol Res Inst, Tsukuba, Ibaraki, Japan; 2.Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba, Japan |
推荐引用方式 GB/T 7714 | Yanase, Wataru,Niino, Hiroshi. Parameter Sweep Experiments on a Spectrum of Cyclones with Diabatic and Baroclinic Processes[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2019,76(7):1917-1935. |
APA | Yanase, Wataru,&Niino, Hiroshi.(2019).Parameter Sweep Experiments on a Spectrum of Cyclones with Diabatic and Baroclinic Processes.JOURNAL OF THE ATMOSPHERIC SCIENCES,76(7),1917-1935. |
MLA | Yanase, Wataru,et al."Parameter Sweep Experiments on a Spectrum of Cyclones with Diabatic and Baroclinic Processes".JOURNAL OF THE ATMOSPHERIC SCIENCES 76.7(2019):1917-1935. |
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