Relative humidity variation derived from tree‐ring δ18O and possible large‐scale atmospheric circulations linkage over the Guanzhong Plain, central northern China, since 1760 CE,International Journal of Climatology

当前位置： X-MOL 学术 › Int. J. Climatol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Relative humidity variation derived from tree‐ring δ18O and possible large‐scale atmospheric circulations linkage over the Guanzhong Plain, central northern China, since 1760 CE
International Journal of Climatology ( IF 3.5 ) Pub Date : 2021-01-11 , DOI: 10.1002/joc.7004
Ruoshi Liu ₁ , Qiang Li _{2,

3} , Yu Liu _{1,

2,

3,

4} , Xuxiang Li ₁ , Meng Ren _{2,

5} , Yongyong Ma ₆ , Changfeng Sun ₂ , Huiming Song ₂ , Qiufang Cai ₂

Affiliation

China is drastically influenced by the Asian monsoon. Based on the relationship (r = −.636, N = 62, p < .001) between tree‐ring δ¹⁸O values from nine cores of Pinus tabulaeformis Carr. from Nanwutai and the Asia monsoon‐related June–August relative humidity (RH_JJA), we designed a transfer function reconstructing the RH_JJA variation from 1760 to 2018 CE. Our RH_JJA reconstruction captured some extreme climatic events that occurred in the past, such as the Ding‐Wu disaster (1876–1878 CE), which was the most serious drought event of northern China in the 19th century, and the severe drought event of 1925–1930 CE. The spatial correlation analysis shows that our RH_JJA reconstruction has not only local but also large‐scale hydroclimate circulations. Our reconstruction compared well with other hydroclimate series from northern China, indicating the large‐scale representativeness of our reconstruction. Both the ensemble empirical mode decomposition (EEMD) and the periodicity analyses revealed that the El Niño–South Oscillation (ENSO), the Pacific Decadal Oscillation (PDO), the Arctic Oscillation (AO) and the solar activity strongly affected Asian monsoon‐related RH_JJA changes over Guanzhong Plain in the past. We believe this study is of great significance and provides an in‐depth understanding of climate change in the Guanzhong Plain and in northern China.

更新日期：2021-01-11

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11