Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-18-0203.1 |
Modal Decomposition of the Global Response to Tropical Heating Perturbations Resembling MJO | |
Kosovelj, Katarina1; Kucharski, Fred2; Molteni, Franco3; Zagar, Nedjeljka1,4 | |
2019-05-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2019 |
卷号 | 76期号:5页码:1457-1469 |
文章类型 | Article |
语种 | 英语 |
国家 | Slovenia; Italy; England; Germany |
英文摘要 | The paper presents four ensembles of numerical experiments that compare the response to monopole and dipole heating perturbations resembling different phases of the Madden-Julian oscillation (MJO). The results quantify the Rossby and inertio-gravity (IG) wave response using the normal-mode function decomposition. The day 3 response is characterized by about 60% variance in the IG modes, with about 85% of it belonging to the Kelvin waves. On day 14, only 10% of the response variance is due to the Kelvin waves. Although the n = 1 Rossby mode is the main contributor to the Rossby variance at all time scales, the n > 1 Rossby modes contribute over 50% of the balanced response to the MJO heating. In the short range, dipole perturbations produce a response with the maximal variance in zonal wavenumbers k = 2-3 whereas in the medium range the response maximizes at k = 1 in all experiments. Furthermore, the medium-range response to the heating perturbation mimicking MJO phase 6 is found also over Europe. |
英文关键词 | Dynamics Madden-Julian oscillation Teleconnections |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467955800002 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; EXTRATROPICAL RESPONSE ; LINEAR-RESPONSE ; ATMOSPHERE ; FLOW ; REPRESENTATION ; WAVES |
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/183028 |
专题 | 地球科学 |
作者单位 | 1.Univ Ljubljana, Ljubljana, Slovenia; 2.Abdus Salaam Int Ctr Theoret Phys, Trieste, Italy; 3.ECMWF, Reading, Berks, England; 4.Univ Hamburg, Meteorol Inst, Hamburg, Germany |
推荐引用方式 GB/T 7714 | Kosovelj, Katarina,Kucharski, Fred,Molteni, Franco,et al. Modal Decomposition of the Global Response to Tropical Heating Perturbations Resembling MJO[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2019,76(5):1457-1469. |
APA | Kosovelj, Katarina,Kucharski, Fred,Molteni, Franco,&Zagar, Nedjeljka.(2019).Modal Decomposition of the Global Response to Tropical Heating Perturbations Resembling MJO.JOURNAL OF THE ATMOSPHERIC SCIENCES,76(5),1457-1469. |
MLA | Kosovelj, Katarina,et al."Modal Decomposition of the Global Response to Tropical Heating Perturbations Resembling MJO".JOURNAL OF THE ATMOSPHERIC SCIENCES 76.5(2019):1457-1469. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论