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Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica

机译:来自南极沃斯托克冰芯的过去420,000年的气候和大气历史

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The recent completion of drilling at Vostok station In East Antarctica has allowed the extension of the ice record of atmospheric composition and climate to the past four glacial-lnterglacial cycles. The succession of changes through each climate cycle and termination was similar, and atmospheric and climate properties oscillated between stable bounds. Interglacial periods differed in temporal evolution and duration. Atmospheric concentrations of carbon dioxide and methane correlate well with Antarctic air-temperature throughout the record. Present-day atmospheric burdens of these two important greenhouse gases seem to have been unprecedented during the past 420,000 years.
机译:南极东部东部沃斯托克站最近的钻探工作已经完成,将大气成分和气候的冰记录扩展到了过去的四个冰期-冰期循环。在每个气候周期和终止期间,变化的顺序是相似的,并且大气和气候特性在稳定范围之间振荡。冰川间期在时间演化和持续时间上有所不同。在整个记录中,大气中二氧化碳和甲烷的浓度与南极空气温度密切相关。在过去的420,000年中,这两种重要温室气体的当今大气负担似乎是空前的。

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