The evolution and volcanic forcing of the southern annular mode during the past 300 years
文献类型：期刊论文
| 作者 | Yang, Jiao1,3; Xiao, Cunde1,2,3 |
| 刊名 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
 |
| 出版日期 | 2018-03-30 |
| 卷号 | 38期号:4页码:1706-1717 |
| 关键词 | Antarctic ice core southern annular mode reconstruction volcanic forcing |
| ISSN号 | 0899-8418 |
| DOI | 10.1002/joc.5290 |
| 通讯作者 | Xiao, Cunde(cdxiao@bnu.edu.cn) |
| 英文摘要 | A positive change in the southern annular mode (SAM), which is the primary pattern of climate variability in the Southern Hemisphere, has been induced predominantly by polar stratospheric ozone depletion. However, the lack of long-term observational records limits our understanding of the long-term SAM behaviour. In this study, we found that the geochemical record of the LGB69 ice core from the eastern coast of Antarctica was significantly correlated with the winter SAM index (SAMI). In addition, we developed an annual mean SAMI beginning in 1701 based on 15 annually resolved ice cores and relevant proxy-climate relationships. Our reconstruction accounted for 54.8% of the total variance from 1957 to 2000 (the calibration period). We demonstrate that the recent positive phase shift in the annual mean SAMI since the 1970s is unprecedented, with the estimate for the latest regime in the 1990s reaching values 2.5 times the standard deviation above the baseline (1701-2000). This peak value also coincides with the largest 30- and 50-year trends, which have occurred at the end of the 20th century. From the reconstructed SAMI, we also found that the response to large volcanic events was likely positive in the 3 years after the eruption, but this positive response can be masked by internal climate variability when a strong El Nino event occurs in the eruption year. |
| 收录类别 | SCI |
| WOS关键词 | LEVEL PRESSURE VARIABILITY ; CLIMATE-CHANGE ; ICE-CORE ; ATMOSPHERIC CIRCULATION ; EAST ANTARCTICA ; OZONE DEPLETION ; INDIAN-OCEAN ; SEA-ICE ; GLACIOCHEMICAL RECORD ; ENSO TELECONNECTION |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000427011700008 |
| 出版者 | WILEY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558115 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Xiao, Cunde |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Gansu, Peoples R China 2.Beijing Normal Univ, State Key Lab Earth Surface & Source Ecol, 19 XinJieKouWai St, Beijing 100875, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Jiao,Xiao, Cunde. The evolution and volcanic forcing of the southern annular mode during the past 300 years[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(4):1706-1717. |
| APA | Yang, Jiao,&Xiao, Cunde.(2018).The evolution and volcanic forcing of the southern annular mode during the past 300 years.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(4),1706-1717. |
| MLA | Yang, Jiao,et al."The evolution and volcanic forcing of the southern annular mode during the past 300 years".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.4(2018):1706-1717. |
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来源：寒区旱区环境与工程研究所
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