Current Siberian heating is unprecedented during the past seven millennia.
Current Siberian heating is unprecedented during the past seven millennia.
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DOI：
10.1038/s41467-022-32629-x
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发表时间：
2022-08-25
影响因子：
16.6
通讯作者：
中科院分区：
文献类型：
--
作者：
北极变暖的速度比地球上任何其他地区都要快。正确看待这种快速变暖是一项挑战，因为极地地区的仪器记录往往很短或不完整，而且在很大程度上缺乏具有高时间分辨率的精确年代温度代用品。在这里，我们通过使用年轮记录重建亚马尔半岛（最近变暖的热点）过去7638年的夏季温度变化，提供了长期的视角。我们证明，最近的人为变暖中断了数千年的变冷趋势。我们发现工业时代的变暖速度是前所未有的，并且将夏季温度提高到超过过去七千年重建的水平（包括30年平均值和极端夏季的频率）。这无疑是受到本区域自然气候变化范围之外的气候变化影响的自然系统和人类系统的关切。基于埋藏在西伯利亚北极地区的亚化石树木的7638年夏季温度重建表明，最近的变暖是前所未有的，并且中断了数千年的冷却趋势。
The Arctic is warming faster than any other region on Earth. Putting this rapid warming into perspective is challenging because instrumental records are often short or incomplete in polar regions and precisely-dated temperature proxies with high temporal resolution are largely lacking. Here, we provide this long-term perspective by reconstructing past summer temperature variability at Yamal Peninsula – a hotspot of recent warming – over the past 7638 years using annually resolved tree-ring records. We demonstrate that the recent anthropogenic warming interrupted a multi-millennial cooling trend. We find the industrial-era warming to be unprecedented in rate and to have elevated the summer temperature to levels above those reconstructed for the past seven millennia (in both 30-year mean and the frequency of extreme summers). This is undoubtedly of concern for the natural and human systems that are being impacted by climatic changes that lie outside the envelope of natural climatic variations for this region. A 7,638 yr summer temperature reconstruction based on subfossil trees buried in the Siberian Arctic shows that recent warming is unprecedented and interrupted a multi-millennial cooling trend.
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影响因子：
4.8
作者：
Ciavarella A;Cotterill D;Stott P;Kew S;Philip S;van Oldenborgh GJ;Skålevåg A;Lorenz P;Robin Y;Otto F;Hauser M;Seneviratne SI;Lehner F;Zolina O
通讯作者：
Zolina O
影响因子：
16.6
作者：
Karlsson J;Serikova S;Vorobyev SN;Rocher-Ros G;Denfeld B;Pokrovsky OS
通讯作者：
Pokrovsky OS
影响因子：
30.7
作者：
Lind, Sigrid;Ingvaldsen, Randi B.;Furevik, Tore
通讯作者：
Furevik, Tore
影响因子：
56.9
作者：
Marcott, Shaun A.;Shakun, Jeremy D.;Mix, Alan C.
通讯作者：
Mix, Alan C.
影响因子：
4
作者：
Briner, Jason P.;McKay, Nicholas P.;Wagner, Bernd
通讯作者：
Wagner, Bernd