Seasonal Covariability of Dryness or Wetness in China and Global Sea Surface Temperature
文献类型：期刊论文
| 作者 | Li, Chunxiang; Wang, Chunzai1,2,4; Zhao, Tianbao |
| 刊名 | JOURNAL OF CLIMATE
 |
| 出版日期 | 2020 |
| 卷号 | 33期号:2页码:727 |
| ISSN号 | 0894-8755 |
| 关键词 | Atmosphere-ocean interaction Drought Precipitation |
| 英文摘要 | Seasonal covariability of the dryness/wetness in China and global sea surface temperature (SST) is investigated by using the monthly self-calibrated Palmer drought severity index (PDSI) data and other data from 1950 to 2014. The singular value decomposition (SVD) analysis shows two recurring PDSI-SST coupled modes. The first SVD mode of PDSI is associated with the warm phases of the eastern Pacific-type El Nino-Southern Oscillation (ENSO), the interdecadal Pacific oscillation (IPO) or Pacific decadal oscillation (PDO), the Indian Ocean basin mode (IOBM) in the autumn and winter, and the cold phase of the IOBM in the spring. Meanwhile, the Atlantic multidecadal oscillation (AMO) pattern appears in every season except the autumn. The second SVD mode of PDSI is accompanied by a central Pacific-type El Nino developing from the winter to autumn over the tropical Pacific and a positive phase of IPO or PDO from the winter to summer. Moreover, an AMO pattern is observed in all seasons except the summer, whereas the SST over the tropical Indian Ocean shows negligible variations. The further analyses suggest that AMO remote forcing may be a primary factor influencing interdecadal variability of PDSI in China, and interannual to interdecadal variability of PDSI seems to be closely associated with the ENSO-related events. Meanwhile, the IOBM may be a crucial factor in interannual variability of PDSI during its mature phase in the spring. In general, the SST-related dryness/wetness anomalies can be explained by the associated atmospheric circulation changes. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18361]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, CAS Key Lab Reg Climate Environm Temperate East A, Beijing, Peoples R China 2.Chinese Acad Sci, Innovat Acad South China Sea Ecol & Environm Engn, Guangzhou, Guangdong, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou, Guangdong, Peoples R China 4.South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Chunxiang,Wang, Chunzai,Zhao, Tianbao. Seasonal Covariability of Dryness or Wetness in China and Global Sea Surface Temperature[J]. JOURNAL OF CLIMATE,2020,33(2):727, 747. |
| APA | Li, Chunxiang,Wang, Chunzai,&Zhao, Tianbao.(2020).Seasonal Covariability of Dryness or Wetness in China and Global Sea Surface Temperature.JOURNAL OF CLIMATE,33(2),727. |
| MLA | Li, Chunxiang,et al."Seasonal Covariability of Dryness or Wetness in China and Global Sea Surface Temperature".JOURNAL OF CLIMATE 33.2(2020):727. |
入库方式： OAI收割
来源：南海海洋研究所
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