在最后一个间冰期期间,希腊西北部的气候变化
1Godwin Institute for Quaternary Research, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK. Godwin Institute for Quaternary Research, Department of Geography, University of Cambridge, Downing Place, Cambri.
Science (New York, N.Y.)
|September 18, 1999
概括
希腊的Eemian气候经历了显著的振荡,类似于Holocene. 在冰川间条件达到峰值后,温度下降,降水增加,这表明气候的可比性变化.
科学领域:
- 古气候学 古气候学
- 四年纪地质学四年纪地质学
- 帕利诺学 (Palynology) 是一个临床学科.
背景情况:
- 了解过去的冰河间气候动态对于对当前气候变化的理解至关重要.
- 埃米亚间冰期 (海洋同位素阶段5) 作为未来气候情景的关键类比.
研究的目的:
- 重建希腊西北部的埃米亚气候变化.
- 为了比较Eemian气候振荡与Holocene的气候振荡.
主要方法:
- 来自湖泊沉积物序列的同位素和古生物学数据的分析.
- 沉积物序列的年代约定涵盖了115,000至135,000年前的时期.
主要成果:
- 在进入和退出Eemian间冰期的过渡期间观察到明显的气候振荡.
- 中间冰河间时期的变化不那么明显,出现了显著的短暂波动.
- 峰值后的间冰期条件以温度的逐步下降和降水量的增加为标志.
结论:
- 希腊的Eemian气候变化在幅度和步伐上与Holocene相似.
- 这些发现有助于更好地了解冰川间气候动态及其与现代气候变化的潜在相关性.
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