Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026526 |
Influences of the MJO on the space-time organization of tropical convection | |
Dias, Juliana1,2; Sakaeda, Naoko2; Kiladis, George N.2; Kikuchi, Kazuyoshi3 | |
2017-08-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:15 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The fact that the Madden-Julian Oscillation (MJO) is characterized by large-scale patterns of enhanced tropical rainfall has been widely recognized for decades. However, the precise nature of any two-way feedback between the MJO and the properties of smaller-scale organization that makes up its convective envelope is not well understood. Satellite estimates of brightness temperature are used here as a proxy for tropical rainfall, and a variety of diagnostics are applied to determine the degree to which tropical convection is affected either locally or globally by the MJO. To address the multiscale nature of tropical convective organization, the approach ranges from space-time spectral analysis to an object-tracking algorithm. In addition to the intensity and distribution of global tropical rainfall, the relationship between the MJO and other tropical processes such as convectively coupled equatorial waves, mesoscale convective systems, and the diurnal cycle of tropical convection is also analyzed. The main findings of this paper are that, aside from the well-known increase in rainfall activity across scales within the MJO convective envelope, the MJO does not favor any particular scale or type of organization, and there is no clear signature of the MJO in terms of the globally integrated distribution of brightness temperature or rainfall. |
英文关键词 | MJO tropical convection equatorial waves mesoscale convective systems diurnal cycle |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000408349500019 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; COUPLED EQUATORIAL WAVES ; DIURNAL CYCLE ; INTRASEASONAL VARIABILITY ; SYSTEMATIC RELATIONSHIP ; MOISTURE MODES ; PRECIPITATION ; PACIFIC ; CLIMATE ; SIMULATIONS |
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/33955 |
专题 | 气候变化 |
作者单位 | 1.Univ Colorado, CIRES, Boulder, CO 80309 USA; 2.NOAA Earth Syst Res Lab, Phys Sci Div, Boulder, CO USA; 3.Univ Hawaii, Sch Ocean & Earth Sci & Technol, Int Pacific Res Ctr, Honolulu, HI 96822 USA |
推荐引用方式 GB/T 7714 | Dias, Juliana,Sakaeda, Naoko,Kiladis, George N.,et al. Influences of the MJO on the space-time organization of tropical convection[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(15). |
APA | Dias, Juliana,Sakaeda, Naoko,Kiladis, George N.,&Kikuchi, Kazuyoshi.(2017).Influences of the MJO on the space-time organization of tropical convection.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(15). |
MLA | Dias, Juliana,et al."Influences of the MJO on the space-time organization of tropical convection".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.15(2017). |
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