Two types of El Nino and extratropical sea-level pressure variations
文献类型：期刊论文
| 作者 | Song, Wanjiao1; Dong, Qing1; Xue, Cunjin1; Sha, Jin1 |
| 刊名 | INTERNATIONAL JOURNAL OF REMOTE SENSING
 |
| 出版日期 | 2016 |
| 卷号 | 37期号:22页码:5443-5456 |
| 关键词 | RANDOM FOREST CLASSIFICATION COVER CLASSIFICATION ACCURACY UNCERTAINTY IMAGERY SEQUESTRATION ELEVATION BIOMASS IMPACT AREA |
| 通讯作者 | Dong, Q (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing, Peoples R China. |
| 英文摘要 | This study applies the nonlinear canonical correlation analysis (NLCCA) to explore the nonlinear relationship between the sea-level pressure (SLP) anomalies over the extratropical North Pacific and sea surface temperature (SST) anomalies in the tropical Pacific during 1985-2009. Our results suggest that the asymmetry between the warm eastern Pacific (EP) El Nino-Aleutian Low mode and the cool EP La Nina-antiphase of the Aleutian Low mode is exhibited in the first NLCCA mode. Nonlinearity of the first NLCCA SST field is enhanced after 1998, and vice versa for the SLP field. The second NLCCA SSTmode reveals weak nonlinearity representing the nonlinear central tropical Pacific (CP) El Nino-CP La Nina modes, while the second SLP field depicts the North Pacific Oscillation and anti-phase with the Aleutian Low phases. The nonlinearity of the second SST and SLP NLCCA modes is found to decrease gradually with time. During 1985-1997, the SST field exhibits linearity, while the SLP field shows weak nonlinearity. During 1997-2009, the SST and SLP fields both display weak linearity. Nonlinearity between the extratropical SLP and SST fields is further weakened from the first period. The Aleutian Low pattern could be excited by both EP and CP El Ninos. Moreover, the CP El Ninos have more connections with the North Pacific Oscillation state rather than the EP El Ninos. Conclusively, this study reveals the asymmetric-modes between the SLP and SST by the nonlinear method, and contributes to the understanding of the extratropical SLP variability response to two types El Nino events. |
| 学科主题 | Remote Sensing; Imaging Science & Photographic Technology |
| 类目[WOS] | Remote Sensing ; Imaging Science & Photographic Technology |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000385631700011 |
| 源URL | [http://ir.radi.ac.cn/handle/183411/39330]  |
| 专题 | 遥感与数字地球研究所_SCI/EI期刊论文_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing, Peoples R China 2.China Meteorol Adm, Natl Satellite Meteorol Ctr, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Wanjiao,Dong, Qing,Xue, Cunjin,et al. Two types of El Nino and extratropical sea-level pressure variations[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2016,37(22):5443-5456. |
| APA | Song, Wanjiao,Dong, Qing,Xue, Cunjin,&Sha, Jin.(2016).Two types of El Nino and extratropical sea-level pressure variations.INTERNATIONAL JOURNAL OF REMOTE SENSING,37(22),5443-5456. |
| MLA | Song, Wanjiao,et al."Two types of El Nino and extratropical sea-level pressure variations".INTERNATIONAL JOURNAL OF REMOTE SENSING 37.22(2016):5443-5456. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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