Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0800.1 |
The 2015/16 El Nino Event in Context of the MERRA-2 Reanalysis: A Comparison of the Tropical Pacific with 1982/83 and 1997/98 | |
Lim, Young-Kwon1,2; Kovach, Robin M.1,3; Pawson, Steven1; Vernieres, Guillaume1,3 | |
2017-07-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The 2015/16 El Nino is analyzed using atmospheric and oceanic analysis produced using the Goddard Earth Observing System (GEOS) data assimilation systems. As well as describing the structure of the event, a theme of this work is to compare and contrast it with two other strong El Ninos, in 1982/83 and 1997/98. These three El Nino events are included in the Modern-Era Retrospective Analysis for Research and Applications (MERRA) and in the more recent MERRA-2 reanalyses. MERRA-2 allows a comparison of fields derived from the underlying GEOS model, facilitating a more detailed comparison of physical forcing mechanisms in the El Nino events. Various atmospheric and oceanic structures indicate that the 2015/16 El Nino maximized in the Nino-3.4 region, with a large region of warming over most of the Pacific and Indian Oceans. The eastern tropical Indian Ocean, Maritime Continent, and western tropical Pacific are found to be less dry in boreal winter, compared to the earlier two strong events. Whereas the 2015/16 El Nino had an earlier occurrence of the equatorial Pacific warming and was the strongest event on record in the central Pacific, the 1997/98 event exhibited a more rapid growth due to stronger westerly wind bursts and the Madden-Julian oscillation during spring, making it the strongest El Nino in the eastern Pacific. Compared to 1982/83 and 1997/98, the 2015/16 event had a shallower thermocline over the eastern Pacific with a weaker zonal contrast of subsurface water temperatures along the equatorial Pacific. While the three major ENSO events have similarities, each is unique when looking at the atmosphere and ocean surface and subsurface. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402380900003 |
WOS关键词 | EQUATORIAL PACIFIC ; EASTERN-PACIFIC ; VARIABILITY ; MJO ; PREDICTABILITY ; EVOLUTION ; MODEL ; OCEAN |
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/20301 |
专题 | 气候变化 |
作者单位 | 1.NASA, Global Modeling & Assimilat Off, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA; 2.IM Syst Grp, Goddard Earth Sci Technol & Res, Greenbelt, MD 20771 USA; 3.Sci Syst & Applicat Inc, Lanham, MD USA |
推荐引用方式 GB/T 7714 | Lim, Young-Kwon,Kovach, Robin M.,Pawson, Steven,et al. The 2015/16 El Nino Event in Context of the MERRA-2 Reanalysis: A Comparison of the Tropical Pacific with 1982/83 and 1997/98[J]. JOURNAL OF CLIMATE,2017,30(13). |
APA | Lim, Young-Kwon,Kovach, Robin M.,Pawson, Steven,&Vernieres, Guillaume.(2017).The 2015/16 El Nino Event in Context of the MERRA-2 Reanalysis: A Comparison of the Tropical Pacific with 1982/83 and 1997/98.JOURNAL OF CLIMATE,30(13). |
MLA | Lim, Young-Kwon,et al."The 2015/16 El Nino Event in Context of the MERRA-2 Reanalysis: A Comparison of the Tropical Pacific with 1982/83 and 1997/98".JOURNAL OF CLIMATE 30.13(2017). |
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