Special Sea-Level and Circulation Anomalies in the Philippine Sea During the 2006/2007 and 2009/2010 El Nino Events
文献类型：期刊论文
| 作者 | Li, Rui1,2; Wang, Fan1,2,3 ; Li, Yuanlong1,3; Ren, Qiuping1; Lyu, Yilong1
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| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
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| 出版日期 | 2023-06-01 |
| 卷号 | 128期号:6页码:20 |
| ISSN号 | 2169-9275 |
| DOI | 10.1029/2022JC019537 |
| 通讯作者 | Wang, Fan(fwang@qdio.ac.cn) |
| 英文摘要 | The Philippine Sea (PS) tends to show sea-level falling and cyclonic upper-layer circulation anomalies during the developing stage (spring and summer) of El Nino, with notable influences on the circulation, climate, and biosystems of downstream regions. These changes show diversity across individual events, partly associated with El Nino-Southern Oscillation complexity and bringing uncertainties to scientific attribution and prediction. Here, we focus on the positive sea-level anomalies (SLAs) and anticyclonic circulation anomalies in the boreal spring and summer of 2006 and 2009, which are opposite in sign to the changes observed during other El Nino events. Correspondingly, exceptional changes were seen in downstream regions, such as the enhanced Indonesian throughflow in the Makassar Strait. Our analysis highlights the persistent equatorial easterly wind anomalies during the preceding winter, which were likely favorable for these special changes in 2006 and 2009. This is confirmed by sensitivity experiments of a simplified ocean model. The results show that the negative off-equatorial wind stress curls in the western and central North Pacific play the key role in causing positive SLAs in the PS through evoking downwelling Rossby waves, and equatorial winds played a secondary role. Further analysis indicates that such special changes of the PS tend to take place in late-onset weak El Nino events following the La Nina conditions. |
| WOS关键词 | NORTH EQUATORIAL CURRENT ; WESTERN BOUNDARY CURRENTS ; TROPICAL PACIFIC-OCEAN ; INTERANNUAL VARIABILITY ; MINDANAO CURRENT ; INDONESIAN THROUGHFLOW ; CLIMATE VARIABILITY ; EASTERN-PACIFIC ; HEAT-CONTENT ; WIND BURSTS |
| 资助项目 | National Natural Science Foundation of China[42106029] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB4200000] ; Shandong Provincial Natural Science Foundation[ZR2020JQ17] ; Ocean Science Data Center, IOCAS |
| WOS研究方向 | Oceanography |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:001004955200001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/182243]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Wang, Fan |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Laoshan Lab, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Rui,Wang, Fan,Li, Yuanlong,et al. Special Sea-Level and Circulation Anomalies in the Philippine Sea During the 2006/2007 and 2009/2010 El Nino Events[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2023,128(6):20. |
| APA | Li, Rui,Wang, Fan,Li, Yuanlong,Ren, Qiuping,&Lyu, Yilong.(2023).Special Sea-Level and Circulation Anomalies in the Philippine Sea During the 2006/2007 and 2009/2010 El Nino Events.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,128(6),20. |
| MLA | Li, Rui,et al."Special Sea-Level and Circulation Anomalies in the Philippine Sea During the 2006/2007 and 2009/2010 El Nino Events".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 128.6(2023):20. |
入库方式： OAI收割
来源：海洋研究所
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