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"Warm Arctic-Cold Siberia" as an Internal Mode Instigated by North Atlantic Warming 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (9)
作者:  Jin, Chunhan;  Wang, Bin;  Yang, Young-Min;  Liu, Jian
收藏  |  浏览/下载:9/0  |  提交时间:2020/07/02
"Warm Arctic-Cold Siberia" pattern  AMO  multi-decadal variations  internal mode of variability  Asian winter monsoon  greenhouse gases forcing  
Long-term ecological consequences of forest fires in the continuous permafrost zone of Siberia 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (3)
作者:  Kirdyanov, Alexander, V;  Saurer, Matthias;  Siegwolf, Rolf;  Knorre, Anastasia A.;  Prokushkin, Anatoly S.;  (Sidorova), Olga V. Churakova;  Fonti, Marina, V;  Buentgen, Ulf
收藏  |  浏览/下载:16/0  |  提交时间:2020/07/02
active soil layer  boreal forest  permafrost  Siberia  stable isotopes  tree rings  wildfire  
Palaeoclimate evidence of vulnerable permafrost during times of low sea ice 期刊论文
NATURE, 2020, 577 (7789) : 221-+
作者:  Vaks, A.;  Mason, A. J.;  Breitenbach, S. F. M.;  Kononov, A. M.;  Osinzev, A. V.;  Rosensaft, M.;  Borshevsky, A.;  Gutareva, O. S.;  Henderson, G. M.
收藏  |  浏览/下载:10/0  |  提交时间:2020/05/13

Climate change in the Arctic is occurring rapidly, and projections suggest the complete loss of summer sea ice by the middle of this century(1). The sensitivity of permanently frozen ground (permafrost) in the Northern Hemisphere to warming is less clear, and its long-term trends are harder to monitor than those of sea ice. Here we use palaeoclimate data to show that Siberian permafrost is robust to warming when Arctic sea ice is present, but vulnerable when it is absent. Uranium-lead chronology of carbonate deposits (speleothems) in a Siberian cave located at the southern edge of continuous permafrost reveals periods in which the overlying ground was not permanently frozen. The speleothem record starts 1.5 million years ago (Ma), a time when greater equator-to-pole heat transport led to a warmer Northern Hemisphere(2). The growth of the speleothems indicates that permafrost at the cave site was absent at that time, becoming more frequent from about 1.35 Ma, as the Northern Hemisphere cooled, and permanent after about 0.4 Ma. This history mirrors that of year-round sea ice in the Arctic Ocean, which was largely absent before about 0.4 Ma (ref.(3)), but continuously present since that date. The robustness of permafrost when sea ice is present, as well as the increased permafrost vulnerability when sea ice is absent, can be explained by changes in both heat and moisture transport. Reduced sea ice may contribute to warming of Arctic air(4-6), which can lead to warming far inland(7). Open Arctic waters also increase the source of moisture and increase autumn snowfall over Siberia, insulating the ground from low winter temperatures(8-10). These processes explain the relationship between an ice-free Arctic and permafrost thawing before 0.4 Ma. If these processes continue during modern climate change, future loss of summer Arctic sea ice will accelerate the thawing of Siberian permafrost.


  
Intraseasonal Snow Cover Variations Over Western Siberia and Associated Atmospheric Processes 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (16) : 8994-9010
作者:  Song, Lei;  Wu, Renguang
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/27
the western Siberia  snow cover  intraseasonal variation  atmospheric process  
Assessment of post-fire vegetation recovery in Southern Siberia using remote sensing observations 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (5)
作者:  Shvetsov, Evgeny G.;  Kukavskaya, Elena A.;  Buryak, Ludmila, V;  Barrett, Kirsten
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/26
Siberia  Zabaikal region  remote sensing  NBR  post-fire regeneration  
Frequency of spring dust weather in North China linked to sea ice variability in the Barents Sea 期刊论文
CLIMATE DYNAMICS, 2018, 51: 4439-4450
作者:  Fan, Ke;  Xie, Zhiming;  Wang, Huijun;  Xu, Zhiqing;  Liu, Jiping
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/09
Winter sea-ice cover  Barents Sea  Dust weather frequency  North China  Snow cover  Western Siberia  
Permafrost and lakes control river isotope composition across a boreal Arctic transect in the Western Siberian lowlands 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (3)
作者:  Ala-aho, P.;  Soulsby, C.;  Pokrovsky, O. S.;  Kirpotin, S. N.;  Karlsson, J.;  Serikova, S.;  Manasypov, R.;  Lim, A.;  Krickov, I.;  Kolesnichenko, L. G.;  Laudon, H.;  Tetzlaff, D.
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/09
stable water isotopes  Western Siberia Lowlands  mean transit time  hydrological connectivity  permafrost  
Soil carbon sequestration due to post-Soviet cropland abandonment: estimates from a large-scale soil organic carbon field inventory 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (9)
作者:  Wertebach, Tim-Martin;  Hoelzel, Norbert;  Kaempf, Immo;  Yurtaev, Andrey;  Tupitsin, Sergey;  Kiehl, Kathrin;  Kamp, Johannes;  Kleinebecker, Till
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
carbon sequestration  climate change mitigation  land-use change  self-restoration  soil organic carbon  Western Siberia  
Long-term forest resilience to climate change indicated by mortality, regeneration, and growth in semiarid southern Siberia 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (6)
作者:  Xu, Chongyang;  Liu, Hongyan;  Anenkhonov, Oleg A.;  Korolyuk, Andrey Yu;  Sandanov, Denis V.;  Balsanova, Larisa D.;  Naidanov, Bulat B.;  Wu, Xiuchen
收藏  |  浏览/下载:16/0  |  提交时间:2019/04/09
arid timberline  arid tree line  climate change  forest resilience  forest-steppe  patch size  southern Siberia  
Plants, microorganisms, and soil temperatures contribute to a decrease in methane fluxes on a drained Arctic floodplain 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (6)
作者:  Kwon, Min Jung;  Beulig, Felix;  Ilie, Iulia;  Wildner, Marcus;  Kuesel, Kirsten;  Merbold, Lutz;  Mahecha, Miguel D.;  Zimov, Nikita;  Zimov, Sergey A.;  Heimann, Martin;  Schuur, Edward A. G.;  Kostka, Joel E.;  Kolle, Olaf;  Hilke, Ines;  Goeckede, Mathias
收藏  |  浏览/下载:11/0  |  提交时间:2019/04/09
aerenchyma  closed dynamic chamber  fall methane fluxes  methanogens  Siberia