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Modulation of the relationship between summer temperatures in the Qinghai–Tibetan Plateau and Arctic over the past millennium by external forcings
Quaternary Research ( IF 2.3 ) Pub Date : 2021-03-12 , DOI: 10.1017/qua.2021.3
Feng Shi , Anmin Duan , Qiuzhen Yin , John T Bruun , Cunde Xiao , Zhengtang Guo

The Qinghai–Tibetan Plateau and Arctic both have an important influence on global climate, but the correlation between climate variations in these two regions remains unclear. Here we reconstructed and compared the summer temperature anomalies over the past 1,120 yr (900–2019 CE) in the Qinghai–Tibetan Plateau and Arctic. The temperature correlation during the past millennium in these two regions has a distinct centennial variation caused by volcanic eruptions. Furthermore, the abrupt weak-to-strong transition in the temperature correlation during the sixteenth century could be analogous to this type of transition during the Modern Warm Period. The former was forced by volcanic eruptions, while the latter was controlled by changes in greenhouse gases. This implies that anthropogenic, as opposed to natural, forcing has acted to amplify the teleconnection between the Qinghai–Tibetan Plateau and Arctic during the Modern Warm Period.

中文翻译:

外力对近千年青藏高原与北极地区夏季气温关系的调制

青藏高原和北极都对全球气候有重要影响,但这两个地区气候变化之间的相关性尚不清楚。在这里,我们重建并比较了过去 1120 年(公元 900-2019 年)青藏高原和北极地区的夏季温度异常。这两个地区过去千年的温度相关性具有明显的由火山爆发引起的百年变化。此外,16 世纪温度相关性从弱到强的突然转变可能类似于现代暖期的这种转变。前者受火山喷发的影响,而后者受温室气体变化的控制。这意味着人为的,而不是自然的,
更新日期:2021-03-12
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