Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6270 |
Can reanalysis products with only surface variables assimilated capture Madden-Julian oscillation characteristics? | |
Cui, Jingxuan1,2; Wang, Lu1,2; Li, Tim1,3,4; Wu, Bo2 | |
2019-08-23 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The Madden-Julian Oscillation (MJO), as a dominant mode of tropical intraseasonal oscillation, plays an important role in the variability of global weather and climate. However, current state-of-the-art atmospheric circulation models have difficulty in reproducing observed MJO characteristics when forced by observed daily sea surface temperature alone. An important practical question is how much data a model needs in assimilation to reproduce real MJO events? By analysing ERA-20C and NOAA-20CR reanalysis data, the authors tried to figure out whether a model could reproduce observed MJO events by assimilating the observed surface signal alone. The phase propagation and vertical structure associated with MJO were compared between the reanalysis data and observations during 1979-2010. A total skill score considering both temporal correlation and spatial standard deviation were defined. The result showed that both ERA-20C and NOAA-20CR could reproduce the observed MJO characteristics very well, with the former superior to the latter, regardless of MJO intensity. Thus, a minimum requirement for an operational atmospheric model for MJO prediction is the assimilation of the observed surface signals. |
英文关键词 | data assimilation ERA and NOAA 20C-reanalysis datasets Madden-Julian oscillation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000483180100001 |
WOS关键词 | WESTERN NORTH PACIFIC ; LIFE-CYCLE ; INTRASEASONAL OSCILLATIONS ; MJO INITIATION ; MODEL ; PRECIPITATION ; VARIABILITY ; CIRCULATION ; REPRESENTATION ; PERFORMANCE |
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/186118 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Joint Int Res Lab Climate & Environm Change ILCEC, Minist Educ KLME,Collaborat Innovat Ctr Forecast, Nanjing, Jiangsu, Peoples R China; 2.Chinese Acad Sci, IAP, LASG, Beijing, Peoples R China; 3.Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA; 4.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Dept Atmospher Sci, Honolulu, HI USA |
推荐引用方式 GB/T 7714 | Cui, Jingxuan,Wang, Lu,Li, Tim,et al. Can reanalysis products with only surface variables assimilated capture Madden-Julian oscillation characteristics?[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019. |
APA | Cui, Jingxuan,Wang, Lu,Li, Tim,&Wu, Bo.(2019).Can reanalysis products with only surface variables assimilated capture Madden-Julian oscillation characteristics?.INTERNATIONAL JOURNAL OF CLIMATOLOGY. |
MLA | Cui, Jingxuan,et al."Can reanalysis products with only surface variables assimilated capture Madden-Julian oscillation characteristics?".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2019). |
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