Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0332.1 |
Dynamics-Oriented Diagnostics for the Madden-Julian Oscillation | |
Wang, Bin1,2,3; Lee, Sun-Seon4,5; Waliser, Duane E.6,7; Zhang, Chidong8; Sobel, Adam9,10; Maloney, Eric11; Li, Tim1,2,3; Jiang, Xianan6,7; Ha, Kyung-Ja4,12 | |
2018-04-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:8页码:3117-3135 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China; South Korea |
英文摘要 | Realistic simulations of the Madden-Julian oscillation (MJO) by global climate models (GCMs) remain a great challenge. To evaluate GCM simulations of the MJO, the U.S. CLIVAR MJO Working Group developed a standardized set of diagnostics, providing a comprehensive assessment of statistical properties of the MJO. Here, a suite of complementary diagnostics has been developed that provides discrimination and assessment of MJO simulations based on the perception that the MJO propagation has characteristic dynamic and thermodynamic structures. The new dynamics-oriented diagnostics help to evaluate whether a model produces eastward-propagating MJOs for the right reasons. The diagnostics include 1) the horizontal structure of boundary layer moisture convergence (BLMC) that moistens the lower troposphere to the east of a convection center, 2) the preluding eastward propagation of BLMC that leads the propagation of MJO precipitation by about 5 days, 3) the horizontal structure of 850-hPa zonal wind and its equatorial asymmetry (Kelvin easterly versus Rossby westerly intensity), 4) the equatorial vertical-longitudinal structure of the equivalent potential temperature and convective instability index that reflects the premoistening and predestabilization processes, 5) the equatorial vertical-longitudinal distribution of diabatic heating that reflects the multicloud structure of the MJO, 6) the upper-level divergence that reflects the influence of stratiform cloud heating, and 7) the MJO available potential energy generation that reflects the amplification and propagation of an MJO. The models that simulate better three-dimensional dynamic and thermodynamic structures of MJOs generally reproduce better eastward propagations. This evaluation identifies a number of shortcomings in representing dynamical and heating processes relevant to the MJO simulation and reveals potential sources of the shortcomings. |
英文关键词 | Dynamics Madden-Julian oscillation Diagnostics Model evaluation performance Intraseasonal variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428694000009 |
WOS关键词 | MOIST STATIC ENERGY ; INTRASEASONAL VARIABILITY ; VERTICAL STRUCTURE ; TRIMODAL CHARACTERISTICS ; STRATIFORM INSTABILITY ; EASTWARD PROPAGATION ; EQUATORIAL WAVES ; INDIAN-OCEAN ; LIFE-CYCLE ; MJO |
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/20321 |
专题 | 气候变化 |
作者单位 | 1.Univ Hawaii Manoa, Dept Atmospher Sci, Honolulu, HI 96822 USA; 2.Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA; 3.Nanjing Univ Informat Sci & Technol, Earth Syst Modeling Ctr, Nanjing, Jiangsu, Peoples R China; 4.Inst Basic Sci, Ctr Climate Phys, Busan, South Korea; 5.Pusan Natl Univ, Busan, South Korea; 6.Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA USA; 7.CALTECH, Jet Prop Lab, Pasadena, CA USA; 8.NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA; 9.Columbia Univ, Dept Appl Phys & Appl Math, New York, NY USA; 10.Columbia Univ, Dept Earth & Environm Sci, New York, NY USA; 11.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; 12.Pusan Natl Univ, Dept Atmospher Sci, Busan, South Korea |
推荐引用方式 GB/T 7714 | Wang, Bin,Lee, Sun-Seon,Waliser, Duane E.,et al. Dynamics-Oriented Diagnostics for the Madden-Julian Oscillation[J]. JOURNAL OF CLIMATE,2018,31(8):3117-3135. |
APA | Wang, Bin.,Lee, Sun-Seon.,Waliser, Duane E..,Zhang, Chidong.,Sobel, Adam.,...&Ha, Kyung-Ja.(2018).Dynamics-Oriented Diagnostics for the Madden-Julian Oscillation.JOURNAL OF CLIMATE,31(8),3117-3135. |
MLA | Wang, Bin,et al."Dynamics-Oriented Diagnostics for the Madden-Julian Oscillation".JOURNAL OF CLIMATE 31.8(2018):3117-3135. |
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