全新世
冰芯
地质学
穹顶(地质)
气候学
海洋学
温度记录
冰消
古气候学
海平面
冰原
南极冰盖
自然地理学
高原(数学)
气候变化
冰层
海冰
地貌学
地理
数学分析
数学
作者
Valérie Masson‐Delmotte,Françoise Vimeux,Jean Jouzel,Vin Morgan,Marc Delmotte,Philippe Ciais,C. U. Hammer,S. J. Johnsen,V. Lipenkov,Ellen Mosley‐Thompson,Jean‐Robert Petit,Barbara Stenni,M. Stiévenard,Rein Vaikmäe
标识
DOI:10.1006/qres.2000.2172
摘要
A comparison is made of the Holocene records obtained from water isotope measurements along 11 ice cores from coastal and central sites in east Antarctica (Vostok, Dome B, Plateau Remote, Komsomolskaia, Dome C, Taylor Dome, Dominion Range, D47, KM105, and Law Dome) and west Antarctica (Byrd), with temporal resolution from 20 to 50 yr. The long-term trends possibly reflect local ice sheet elevation fluctuations superimposed on common climatic fluctuations. All the records confirm the widespread Antarctic early Holocene optimum between 11,500 and 9000 yr; in the Ross Sea sector, a secondary optimum is identified between 7000 and 5000 yr, whereas all eastern Antarctic sites show a late optimum between 6000 and 3000 yr. Superimposed on the long time trend, all the records exhibit 9 aperiodic millennial-scale oscillations. Climatic optima show a reduced pacing between warm events (typically 800 yr), whereas cooler periods are associated with less-frequent warm events (pacing >1200 yr).
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